Product Library / Smart Locks

Research profile · last verified 2026-10-09

eufy FamiLock S3 Max

Compiled by SmartHomeWorkflow Research · eufy · Smart Locks · ~$399.99 (Price at the time of research, from eufy's own product page: $399.99, in stock. Never treated as a live price. ⚠ This is $69.99 higher than the figure this page used to carry — the direction that costs a reader money, since anyone budgeting from the old number would have arrived $70 short. Read from the product's own typed product data rather than the visible page, because that page also prints $349.99, $299.99 and $599.98 for other eufy locks and bundles alongside it.)

Compatibility at a glance

Does it work with your platform?

Choose your platform to see its setup and functions. Your choice carries across product pages.

[6][12][23][33][39][40][42][50][56][59][63][69][75][81]
[6][12][33][46][47][50][59][63][75]
[6][12][33][60][63][65][75][77]
[6][12][31][33][39][41][50][53][59][63][70][75][82]
[7][35][36][43][44][45][54][55][59][68][80]

A connection can work while individual controls or automations remain unconfirmed. Read the connection details ↓

Protocols: WIFI · MATTER[3][6][14][33][34][49][50][52][62][63][67][74][75][79]

Before you buy

What do you need to make it work?

No hub for the device alone

Choose a platform above for its connection. A hub can be optional for the device itself and required for a platform or automation.

Equipment that adds features

Check which features need it

eufy HomeBase 3 (S380)

eufy HomeBase 3, which eufy frames as an enhancement rather than a requirement: 'Enhance with the eufy Ecosystem — Pair with eufy HomeBase™ 3 for advanced AI', and the lock's own specification row reads 'eufy Ecosystem Support: Doorbell&Cam&Homebase™ 3'. eufy's page disagrees with itself about the older HomeBase 2: one answer says the lock was expected to work with it from the second quarter of 2025, and a note on the same page says it is not compatible with HomeBase 2. Only the HomeBase 3 pairing is stated here.[13][15][49][62][74]

One device can provide more than one role. These are setup requirements, not a shopping list of separate purchases.

What could you do with this?

Put its functions to use.

Research, not hands-on testing

Start with a documented control or event. The selected connection shows what is confirmed for that platform.

Documented device function

Lock/unlock

The device supports this control.

Compare its platform availability in the table below.

Setup and sources

Device documentation: [10] [34] [58] [62] [74]

Documented device function

Camera stream

The device supports this control.

Compare its platform availability in the table below.

Setup and sources

Device documentation: [10] [34] [58] [62] [74]

Documented device function

Lock state

The device reports this event.

Compare its platform availability in the table below.

Setup and sources

Device documentation: [10] [34] [58] [62] [74]

A documented control or event is one part of a setup. It does not by itself establish a complete automation.

The functions, side by side

What can you use, and where?[10][34][58][62][74]

A platform connection does not confirm every function. Controls and reported events are shown separately from what an automation can use.

Controls
2 documented
Reported events
1 documented

Compare all five platforms. On a narrow screen, scroll the table sideways.

Documented device functions, platform controls and automation availability
Device functionApple HomeWorks, except camera stream[6][12][23][33][39][40][42][50][56][59][63][69][75][81]Google HomeWorks, except voice unlock and camera stream[6][12][33][46][47][50][59][63][75]AlexaWorks; lock/unlock and camera stream unconfirmed[6][12][33][60][63][65][75][77]SmartThingsWorks, except camera stream[6][12][31][33][39][41][50][53][59][63][70][75][82]Home AssistantWorks, except camera stream[7][35][36][43][44][45][54][55][59][68][80]
Lock/unlockDevice control
Control

Supported for this Matter device type

Automation

✓ routines can use it

Control

Works, except voice unlock (Matter device-type support)

Automation

? not stated

Control

Not stated

Automation

—

Control

Supported for this Matter device type

Automation

✓ routines can use it[72][73][84][85]

Control

Supported for this Matter device type

Automation

—

Camera streamDevice control
Control

Not supported for this Matter device type

Automation

—

Apple Home lists the capabilities its automations can use over Matter, and Camera stream is not on it.

Control

Not supported for this Matter device type

Automation

—

Google Home lists the capabilities its automations can use over Matter, and Camera stream is not on it.

Control

Not stated

Automation

—

Control

Doesn't work

Automation

—

Control

Doesn't work

Automation

—

Lock stateReported event
Event

Supported for this Matter device type

Automation

✓ routines can use it

Event

Supported for this Matter device type

Automation

✓ routines can use it

Event

Not stated

Automation

—

Event

Supported for this Matter device type

Automation

✓ routines can use it[72][73][84][85]

Event

Supported for this Matter device type

Automation

—

✓ Documented for this connection. × A stated limit. ◐ A partial function. ? Not established. A listed device function does not establish a complete routine, its other equipment or any plan requirements.

Matter device-type support is based on the platform’s list for this kind of device; this exact model is not named.

Setup and sources

Apple Home

Apple Home locks and unlocks it through Matter over Wi-Fi: eufy names Apple Home for this lock, and Apple lists locks among the Matter accessories its Home app supports. The camera stream does not come through Matter, so live video and visitor calls stay in the eufy app.[6][12][23][33][39][40][42][50][56][59][63][69][75][81]

Camera stream automation: Apple Home lists the capabilities its automations can use over Matter, and Camera stream is not on it.

Google Home

Google Home connects to this lock through Matter, which eufy names for its cross-platform support. Google locks it and shows whether it is locked, but Google turns off voice unlock for Matter locks, and turns off remote unlock too unless the lock requires a PIN; eufy does not say whether this one does. The camera stream does not come through Matter either, so video stays in the eufy app.[6][12][33][46][47][50][59][63][75]

Camera stream automation: Google Home lists the capabilities its automations can use over Matter, and Camera stream is not on it.

Alexa

eufy names Alexa for this lock but does not say what Alexa can do with it. eufy's Alexa help page lists lock and unlock commands and live camera view for other eufy locks and cameras, not this one, so lock/unlock and camera stream are both unconfirmed through Alexa.[6][12][33][60][63][65][75][77]

SmartThings

SmartThings locks and unlocks it through Matter over Wi-Fi, and Samsung lists this lock by name as a door lock in its Works with SmartThings directory. eufy says camera streams do not travel over Matter, so the camera stream stays in the eufy app.[6][12][31][33][39][41][50][53][59][63][70][75][82]

Home Assistant

Home Assistant locks and unlocks it through its own Matter support over Wi-Fi, with no Thread border router needed, using Home Assistant's free Matter Server app. eufy says camera streams do not travel over Matter, so the camera stream stays in the eufy app. Home Assistant's own eufy integration covers eufy lights and switches only.[7][35][36][43][44][45][54][55][59][68][80]

Platform documentation:

eufy.com · checked 2026-08-04

eufy.com · checked 2026-10-11

eufy.com · checked 2026-10-14

support.apple.com · checked 2026-10-14

Apple Home — Matter path · checked 2026-09-04

eufy.com · checked 2026-10-07

Google Home — Matter path · checked 2026-10-03

eufy.com · checked 2026-08-19

service.eufy.com · checked 2026-10-14

partners.smartthings.com · checked 2026-10-14

raw.githubusercontent.com · checked 2026-10-14

raw.githubusercontent.com · checked 2026-10-14

home-assistant.io · checked 2026-07-21

home-assistant.io · checked 2026-10-09

home-assistant.io · checked 2026-10-14

eufy.com · checked 2026-10-04

Apple Home — Matter path · checked 2026-10-03

SmartThings — Matter path · checked 2026-10-07

SmartThings — Matter path · checked 2026-10-14

SmartThings — Matter path · checked 2026-10-14

SmartThings — Matter path · checked 2026-10-14

SmartThings — Matter path · checked 2026-10-14

Home Assistant — Matter path · checked 2026-10-04

Device documentation: [10] [34] [58] [62] [74]

Some functions may need a paid plan. Plan requirements are shown below.

Listed device functions are established from vendor documentation. An ability missing here is unestablished, not necessarily absent.

Connection details and setup sources
EcosystemSupportThe catch
Amazon AlexaWorks; lock/unlock and camera stream unconfirmedWorks; lock/unlock and camera stream unconfirmed — see the catch[6][12][33][60][63][65][75][77]eufy names Alexa for this lock but does not say what Alexa can do with it. eufy's Alexa help page lists lock and unlock commands and live camera view for other eufy locks and cameras, not this one, so lock/unlock and camera stream are both unconfirmed through Alexa.
Google HomeWorks, except voice unlock and camera streamWorks, except voice unlock and camera stream — see the catch[6][12][33][46][47][50][59][63][75]Google Home connects to this lock through Matter, which eufy names for its cross-platform support. Google locks it and shows whether it is locked, but Google turns off voice unlock for Matter locks, and turns off remote unlock too unless the lock requires a PIN; eufy does not say whether this one does. The camera stream does not come through Matter either, so video stays in the eufy app.In Google Home you also need: a hub for Google Home (a Nest speaker or display, Nest Wifi Pro, the Google TV Streamer, or a compatible TV) — Google Home’s rule for every Matter accessory. Source (read 2026-09-11)
Apple HomeWorks, except camera streamWorks, except camera stream — see the catch[6][12][23][33][39][40][42][50][56][59][63][69][75][81]Apple Home locks and unlocks it through Matter over Wi-Fi: eufy names Apple Home for this lock, and Apple lists locks among the Matter accessories its Home app supports. The camera stream does not come through Matter, so live video and visitor calls stay in the eufy app.
SmartThingsWorks, except camera streamWorks, except camera stream — see the catch[6][12][31][33][39][41][50][53][59][63][70][75][82]SmartThings locks and unlocks it through Matter over Wi-Fi, and Samsung lists this lock by name as a door lock in its Works with SmartThings directory. eufy says camera streams do not travel over Matter, so the camera stream stays in the eufy app.In SmartThings you also need: a Matter-compatible SmartThings hub — SmartThings’s rule for every Matter accessory. Source (read 2026-10-14)
Home AssistantWorks, except camera streamWorks, except camera stream — see the catch[7][35][36][43][44][45][54][55][59][68][80]Home Assistant locks and unlocks it through its own Matter support over Wi-Fi, with no Thread border router needed, using Home Assistant's free Matter Server app. eufy says camera streams do not travel over Matter, so the camera stream stays in the eufy app. Home Assistant's own eufy integration covers eufy lights and switches only.In Home Assistant you also need: Home Assistant's own Matter Server app, installed from inside Home Assistant (no extra hardware to buy) — Home Assistant’s rule for every Matter accessory. Source (read 2026-09-11)

Plans and ongoing costs[27][28][49][50][51][62][64][74][76]

◐ Works without a subscription: Yes. The maker also sells an optional paid plan.

Vendor account required: Not established — we have not sourced this yet.

No plan is needed to use the lock. eufy also sells an optional Plus membership, $15 a month or $135 a year when we checked in September 2026, that includes 30 days of cloud video backup for all devices, and eufy does not say whether that covers this lock's camera. eufy describes local storage for the lock's video only when it is paired with a HomeBase 3, sold separately, and says video goes to the cloud if you choose cloud storage. Without a HomeBase, eufy does not say where recordings are kept.

Maintenance and offline use[5]

Security updates[11]

eufy publishes no security-update support date for this model. That is a gap in what the manufacturer has published, not evidence either way — some makers declare a support period and some say nothing at all.

eufy publishes no security-update period for this lock that we can find, and that answer was earned by checking all three places one could be, not assumed. (a) No per-product regulatory declaration for any eufy model was found by two differently-constructed searches — the bar required here before recording any absence — and eufy links none from its own compliance pages. (b) eufy's privacy-commitment page has a Compliance and Certifications section that names a 'PSTI Compliance Attestation' and says it 'demonstrates that eufy meets stringent cybersecurity requirements outlined in the Product Security and Telecommunications Infrastructure (Security Requirements for Relevant Connectable Products) Regulations 2023' — and it links no statement of compliance and names no support period, on a page that details ISO/IEC 27001, ISO/IEC 27701, ETSI EN 303 645, NISTIR 8425, CSA STAR and ioXt at length. (c) This product's own page carries no security-update, end-of-support or patching statement of any kind. ⚠ Said precisely, because the distinction matters: this records that eufy has published no support period we can find for this model. It is NOT a finding about eufy's compliance with any regulation, and nothing here asserts one. ⚠ And it has a shelf life. British product-security law requires manufacturers to publish a defined support period for products sold there, so vendor silence on this is the kind of thing that changes without notice — which is why this page carries a dated re-check rather than treating the answer as settled. ⚠ Worth stating on a LOCK specifically: this is the category where a maker's patching commitment matters most. It is recorded as an absence, not as a risk — no unpatched vulnerability is known or implied.

The catch

Matter over Wi-Fi carries lock control only — the camera/doorbell half doesn't travel over Matter, so video keeps you in eufy's app whatever platform runs the lock.

Where eufy's own pages disagree

whether the lock works with eufy HomeBase 2

On whether the lock works with eufy HomeBase 2, this page shows unknown (the record states only the HomeBase 3 pairing). eufy's own page says in one place that this lock was expected to work with HomeBase 2 from mid-2025 and in another that it does not work with HomeBase 2, so this page lists only the HomeBase 3 pairing eufy states plainly.

Who it's for

Alexa/Google households that want lock + 2K doorbell cam in one device with palm-vein unlock and no required plan.

Check availability at eufy

This opens eufy's own website. We earn nothing from this link.

Sources & method

Numbered sources below back the facts marked with the matching number above. This is a research profile: compiled from manufacturer documentation, certification registries, and published testing — we state facts, not verdicts, and we have not physically tested this unit. How we work →

87 numbered sources· read them in the source's own words
  1. [1] eufy.com/products/e85v0jy1 (read 2026-08-09): five occurrences of 'Warranty' on the page, all inside the eufy Plus membership panel — 'Extra 6-Month Extended Warranty (Annual membership only)'. No base warranty term appears anywhere on the product page. — Read on the maker's own site, verified 2026-08-09
    Backs: Service status
  2. [2] eufy.com/products/e85v0jy1 (read 2026-08-09), the product data the page publishes for search engines: name 'eufy FamiLock S3 Max', sku 'E85V0JY1', offer price 399.99 USD, marked in stock. Visible page: 'eufy FamiLock S3 Max Palm Vein Unlocking Best Seller $399.99'. — Read on the maker's own site, verified 2026-09-01
    Backs: Price
  3. [3] csa-iot.org/csa_product/eufy-familock-s3-max/ (read 2026-08-09): certificate CSA2480FMAT44738-24, certified 12/30/2024, VID 0x1533, PID 0x000F, Transport Interface 'Wi-Fi, Bluetooth', firmware V1.0.1.0, hardware V4, primary device type 0x000A, specification version 1.2. Vendor side, eufy.com/familock-s3-max re-read the same day: 'Built-In Wi-Fi', 'Direct Wi-Fi', 'Matter support ensures cross-platform compatibility, while Matter over Wi-Fi provides faster, more reliable connections', ecosystem list 'Matter, Apple Home, Alexa, Google Home' — no Bluetooth mention on the page. — Checked a certification register, verified 2026-08-09
    Backs: Protocols
  4. [4] 2026-07 web research sweep (docs/02 catalog; primary sources cited there) — Checked a certification register, verified 2026-07-12
  5. [5] eufy.com/products/e85v0jy1 (15000mAh rechargeable + 4xAAA backup, rated 5 months; exterior emergency-power interface + physical key + AAA PIN-only fallback; official unlock methods 'Palm Vein, App, Voice Control, Password, Keys' — palm vein at 0.6s / 99.9%, NOT fingerprint) — Read on the maker's own site, verified 2026-07-15
    Backs: Batteries, Works without the internet
  6. [6] eufy.com/familock-s3-max ('Seamlessly integrates with Apple Home, Google Home, Alexa, and SmartThings… Matter over Wi-Fi') + eufy Smart Locks Matter Functionality FAQ (camera streams not supported over Matter) — Read on the maker's own site, verified 2026-08-04
    Backs: SmartThings compatibility, Apple Home compatibility, Protocols, Amazon Alexa compatibility, Google Home compatibility
  7. [7] Home Assistant official Matter integration docs (home-assistant.io/integrations/matter — locks supported, with lock-credential actions; Matter over Wi-Fi needs no Thread border router) + eufy.com/familock-s3-max ('Matter support ensures cross-platform compatibility, while Matter over Wi-Fi provides faster, more reliable connections' — eufy does not name Home Assistant; no single primary source names FamiLock + HA together, so this is a standards path with caveats, not a vendor-documented integration) + home-assistant.io/integrations/eufy (EufyHome: 'Light, Switch' only) — Read on the maker's own site, verified 2026-07-21
    Backs: Home Assistant compatibility
  8. [8] eufy.com product page (read 2026-08-09): the product data the page publishes for search engines names 'eufy FamiLock S3 Max', SKU E85V0JY1, offer $399.99 USD, marked in stock, badged 'Best Seller'. The page contains no 'Sold out' or 'Out of stock' string., verified 2026-09-01
    Backs: Market availability
  9. [9] eufy.com, FamiLock S3 Max product page, re-read 2026-08-18 — 'Built-In Wi-Fi: Direct Wi-Fi'; 'Without Homebase™, it links to other eufy cameras, letting you remotely lock/unlock via live view on any device'. No statement about local unlocking, Bluetooth, or behaviour during an internet outage. — Read on the maker's own site, verified 2026-08-18
  10. [10] CSA-IoT certification CSA2480FMAT44738-24 for the eufy FamiLock S3 Max (primary device type 0x000A, specification version 1.2) and eufy.com's own FamiLock S3 Max product page — both already cited on this record — Recorded from our own earlier read, verified 2026-08-19
    Backs: Capabilities
  11. [11] eufy (Anker Innovations), eufy FamiLock S3 Max product page (eufy.com/products/e85v0jy1), read 2026-08-19 — no security-update, end-of-support or patching commitment appears anywhere on the page. Rung (b) read the same day at eufy.com/privacy-commitment, whose Compliance and Certifications section names a "PSTI Compliance Attestation" and links no statement of compliance and no support period. Rung (a): no per-product regulatory declaration located by two differently-constructed searches. — Read the original source directly, verified 2026-08-19
    Backs: Security-update support period
  12. [12] eufy.com/products/e85v0jy1 (read 2026-08-19), verbatim: '2K HD night-vision camera, a 150° wide-angle video doorbell' · 'Camera streams are not supported via Matter due to current limitations. For full features and the best experience, please use the eufy App.' — Read on the maker's own site, verified 2026-08-19
    Backs: Product identity, Apple Home compatibility, Amazon Alexa compatibility, Google Home compatibility, SmartThings compatibility
  13. [13] The CSA certified-product record for the eufy FamiLock S3 Max, read 2026-08-20: certificate CSA2480FMAT44738-24, certified 12/30/2024 against Matter specification version 1.2, Transport Interface "Wi-Fi, Bluetooth", Primary Device Type ID 0x000A, VID 0x1533 / PID 0x000F. eufy.com is a registered refusing host, so no eufy page describing how the lock is controlled could be read that day. — Read on the maker's own site, verified 2026-08-20
    Backs: Required hub or bridge
  14. [14] This record's existing per-model Matter evidence, re-read 2026-08-20 against our settled definition of which radios a product lists: certificate CSA2480FMAT44738 · Matter over Wi-Fi. No new outside source was read — the evidence already on this record was re-examined and this entry states what it establishes., verified 2026-08-20
    Backs: Protocols
  15. [15] www.eufy.com/products/e85v0jy1 (read 2026-08-22, served normally at the SKU-code address this record already cites), verbatim from the product's own Specs block: 'Built-In Wi-Fi: Direct Wi-Fi' · 'eufy Ecosystem Support: Doorbell&Cam&Homebase™ 3' · 'External Ecosystem Support: Matter/Apple Home/Alexa/Google Home'. From the FAQ: 'Without Homebase™, it links to other eufy cameras, letting you remotely lock/unlock via live view on any device.' · 'It supports connection with Homebase™ 3 and is expected to be compatible with HB2 in Q2 of 2025.' · 'Camera streams are not supported via Matter due to current limitations. … Matter is now compatible with HomeBase™ 3 for simultaneous use. This video lock is not compatible with HomeBase™ 2.' From the page's own Products Comparison, the row that makes the answer model-scoped: this lock is 'Built-In Wi-Fi: Direct Wi-Fi' while the sibling Video Smart Lock S330 in the same table is 'Built-In Wi-Fi: Bridge with Chime (included)'. — Read on the maker's own site, verified 2026-09-01
    Backs: Required hub or bridge
  16. [16] Record-keeping entry: the migrated research stamp was retired from this record on 2026-08-30, verified 2026-08-30
  17. [17] eufy product page for the FamiLock S3 Max (www.eufy.com/products/e85v0jy1), read 2026-09-01. Specification table: 'Battery Type: 15000mAh+4*AAA' · 'Charger Requirement: 5V/2A'. FAQ 3, 'What is the power supply method of this door lock?': 'Our door lock uses a dual power supply with lithium and standard batteries. When the lithium battery is low, standard batteries provide emergency power, allowing PIN code access to lock/unlock, while other functions are unavailable.' — Read the original source directly, verified 2026-09-01
    Backs: Power source
  18. [18] eufy product page for the FamiLock S3 Max (www.eufy.com/products/e85v0jy1), re-read 2026-09-01: price $399.99 against a live 'Add to Cart'; specification table 'Battery Type: 15000mAh+4*AAA', 'Battery Life: 5 months', 'Built-In Wi-Fi: Direct Wi-Fi', 'eufy Ecosystem Support: Doorbell&Cam&Homebase™ 3', 'External Ecosystem Support: Matter/Apple Home/Alexa/Google Home'; FAQ 3 on the dual lithium-plus-AAA supply; and 'Matter is now compatible with HomeBase™ 3 for simultaneous use. This video lock is not compatible with HomeBase™ 2.' — Read the original source directly, verified 2026-09-01
    Backs: Research status
  19. [19] CSA certified-product entry csa-iot.org/csa_product/eufy-familock-s3-max/, certificate CSA2480FMAT44738-24 (certified 12/30/2024), which prints VID 0x1533 and PID 0x000F. Read into this record on 2026-08-09 and again on 2026-08-20; this entry lifts the two identifiers out of that prose into their own typed fields. — Recorded from our own earlier read, verified 2026-08-09
    Backs: Certification and product IDs
  20. [20] https://eufy.com/products/e85v0jy1 (read 2026-09-09), Specs: 'Battery Type: 15000mAh+4*AAA', 'Battery Life: 5 months', 'Charger Requirement: 5V/2A', with the FAQ 'Our door lock uses a dual power supply with lithium and standard batteries… When the lithium battery is low, standard batteries provide emergency power'. Both supplies are cells, so the power is recorded as battery rather than a mix of battery and mains. Platforms from eufy's app row: eufy Security on https://apps.apple.com/app/id1424956516 and https://play.google.com/store/apps/details?id=com.oceanwing.battery.cam. — Read on the maker's own site, verified 2026-09-09
    Backs: Power source, App platforms
  21. [21] https://eufy.com/products/e85v0jy1 (read 2026-09-09) reads 'Features: Built-In Wi-Fi, Direct Wi-Fi' with no band anywhere on the page. A radio named without its band does not say which bands it uses, so this record leaves the Wi-Fi bands unanswered — checked, and not published by eufy. — Read on the maker's own site, verified 2026-09-09
  22. [22] the record's own customer-facing prose fields as they stood before 2026-09-10 (no new external read), verified 2026-09-10
  23. [23] eufy product page for the FamiLock S3 Max (www.eufy.com/products/e85v0jy1), re-read 2026-09-10: title 'FamiLock S3 Max | Palm Vein Unlocking Video Smart Lock'; buy box '$399.99' with 'Add to Cart' and 'Buy Now'; Specs row 'External Ecosystem Support Matter/Apple Home/Alexa/Google Home'; the note 'Camera streams are not supported via Matter due to current limitations. For full features and the best experience, please use the eufy App.' Also csa-iot.org/csa_product/eufy-familock-s3-max/, re-read the same day: 'Certificate ID CSA2480FMAT44738-24', 'Certified Date 12/30/2024', 'Transport Interface Wi-Fi, Bluetooth', by Anker Innovations Technology Co., Ltd. — Read on the maker's own site, verified 2026-09-10
    Backs: Product identity, Price, Market availability, Service status, Apple Home compatibility, Research status
  24. [24] eufy product page for the FamiLock S3 Max (www.eufy.com/products/e85v0jy1), re-read 2026-09-12 under our reading rules for this site, and served normally: page title "FamiLock S3 Max | Palm Vein Unlocking Video Smart Lock"; the product data the page publishes for search engines, offer sku "E85V0JY1", price "399.99", priceCurrency USD, marked in stock; buy box "$399.99" with "Add to Cart" and "Buy Now"; Specs "Battery Type 15000mAh+4*AAA" · "Battery Life 5 months" · "External Ecosystem Support Matter/Apple Home/Alexa/Google Home". — Read on the maker's own site, verified 2026-09-12
    Backs: Product identity, Price, Market availability
  25. [25] Two eufy pages read 2026-09-12 under our reading rules for this site, both served normally: the product page https://www.eufy.com/products/e85v0jy1 and the FamiLock S3 Max landing page https://eufy.com/familock-s3-max; plus eufy's support product page https://service.eufy.com/product-description/a08J1000000YMWDIA4 and the installation guide it links (salesforce-knowledge-download …/000023692.pdf). Landing page, verbatim: "Pair with eufy HomeBase™ 3 for advanced AI … along with secure local storage* for access logs and video footage" and "*If you choose to use cloud-based features such as cloud storage or push notifications with thumbnail previews, videos or thumbnail previews will be sent to the cloud as needed to provide your selected features.", verified 2026-09-12
  26. [26] eufy product page for the FamiLock S3 Max (www.eufy.com/products/e85v0jy1), re-read 2026-09-13 under our reading rules for this site, and served normally: the product data the page publishes for search engines, offer price "399.99", marked in stock; buy area "eufy FamiLock S3 Max Palm Vein Unlocking Best Seller $399.99" with "Add to Cart" and "Buy Now"; Specs "Battery Type 15000mAh+4*AAA" · "Battery Life 5 months" · "eufy Ecosystem Support Doorbell&Cam&Homebase™ 3" · "External Ecosystem Support Matter/Apple Home/Alexa/Google Home"; FAQ "Matter is now compatible with HomeBase™ 3 for simultaneous use. This video lock is not compatible with HomeBase™ 2." — Read on the maker's own site, verified 2026-09-13
    Backs: Price, Market availability, Research status
  27. [27] Three eufy pages read 2026-09-13 under our reading rules for this site, all served normally. (1) eufy's membership page https://www.eufy.com/eufy-plus-membership: "eufy Plus Member Benefits 30-Day Cloud Backup History (All Devices)", plans "$15.00/month" and "$135/year", "You can unsubscribe at any time". (2) The S3 Max product page https://www.eufy.com/products/e85v0jy1, membership panel: "Plus Member $15.00 /month", with benefits listed for this product as installment payments, free fast shipping, eufyCredits, "Extra 6-Month Extended Warranty (Annual membership only)" and redemption products; it lists no cloud backup, where the E340 doorbell's panel read the same day says "Includes Free Cloud Backup History (All Devices)". No plan on either page gates locking or unlocking. (3) The S3 Max landing page https://eufy.com/familock-s3-max: "Pair with eufy HomeBase™ 3 for advanced AI … along with secure local storage* for access logs and video footage" and "*If you choose to use cloud-based features such as cloud storage or push notifications with thumbnail previews, videos or thumbnail previews will be sent to the cloud as needed to provide your selected features." — Read on the maker's own site, verified 2026-09-13
    Backs: Subscription
  28. [28] eufy's membership page https://www.eufy.com/eufy-plus-membership, read 2026-09-13 under our reading rules for this site and served normally: 'eufy Plus Member Benefits 30-Day Cloud Backup History (All Devices)'; 'Monthly Plus Member You can unsubscribe at any time. $15.00/month'; 'Annually Plus Member You can unsubscribe at any time. $135/year'; 'eufy Plus Membership operates on an auto-renewal subscription model.' The S3 Max product page https://www.eufy.com/products/e85v0jy1, read the same day and served normally, membership panel: 'eufy FamiLock S3 Max Palm Vein Unlocking Best Seller $399.99 Save $16.50 Extra as Plus Member Plus Member $15.00 /month'. The panel lists no cloud backup for this product, and no plan on either page gates locking or unlocking. — Read on the maker's own site, verified 2026-09-13
    Backs: Subscription
  29. [29] This record's own entries of 2026-08-04, 2026-08-19 and 2026-09-10, re-read 2026-09-16: eufy's product page names Google Home beside Apple Home and SmartThings with no per-feature detail, and eufy's own note says camera streams do not travel over Matter., verified 2026-09-16
  30. [30] eufy's product page for the FamiLock S3 Max, https://eufy.com/products/e85v0jy1, read in full 2026-09-20. Battery text a visitor sees: "15000mAh+4*AAA" · "5 months" · "4 AAA backup batteries for uninterrupted performance during power outages" · an "emergency power interface" · "5V/2A" charging over the USB-C port. Also read on the same page and unchanged: "$399.99", "Built-In Wi-Fi", "supports connection with Homebase™ 3", "This video lock is not compatible with HomeBase™ 2". — Read the original source directly, verified 2026-09-20
    Backs: Batteries
  31. [31] Samsung's Works with SmartThings partner directory, eufy's page, read 2026-09-20. SmartThings lists this lock by name on its own row: "eufy FamiLock S3 Max", "Model Number" "T85V0", "Category" "Door lock". Five other FamiLock models sit on the same page — E35 (T85P1), S3 (T85V0C), E34 (T85P0), E40 (T85M0) and E32 (T85F2) — and this record's full product name appears on exactly one row. — Read the platform's own documentation, verified 2026-09-20
    Backs: SmartThings compatibility
  32. [32] A search result named a second certificate number for this lock. Which product that number belongs to is not established, and it is not used as evidence on this page., verified 2026-08-09
  33. [33] eufy, FamiLock S3 Max landing page, read in full 2026-09-26. "Seamlessly integrates with Apple Home, Google Home, Alexa, and SmartThings." and "Matter support ensures cross-platform compatibility, while Matter over Wi-Fi provides faster, more reliable connections." Comparison row for this lock: "Built-In Wi-Fi Direct Wi-Fi", "Battery Type 15,000mAh + 4 AAA Battery Life 5 Months". Power: "Features a 15,000mAh rechargeable lithium battery and 4 AAA batteries for backup to keep your lock running smoothly during recharges. Note: When using backup power, palm vein and camera functions are disabled to save battery. Please unlock with your password". HomeBase: "Pair with eufy HomeBase™ 3 for advanced AI that detects people, vehicles, pets, and more, along with secure local storage* for access logs and video footage". Palm vein: "Identifies your palm in under 0.1 seconds". — Read on the maker's own site, verified 2026-09-26
    Backs: Amazon Alexa compatibility, Google Home compatibility, Apple Home compatibility, SmartThings compatibility, Protocols, Batteries, Research status
  34. [34] CSA-IoT certified-product page, eufy FamiLock S3 Max, read in full 2026-09-26: certificate CSA2480FMAT44738-24, certified 2024-12-30, firmware V1.0.1.0, hardware V4, product ID 0x000F, vendor ID 0x1533, over Wi-Fi and Bluetooth, primary device type 0x000A. — Checked a certification register, verified 2026-09-26
    Backs: Protocols, Certification and product IDs, Capabilities
  35. [35] Home Assistant, Matter integration page, read in full 2026-09-26. Lock actions include "Set a Matter lock credential ( matter.set_lock_credential ) Adds or updates a credential, such as a PIN". On how devices are reached: "Thread devices through a Thread border router." and "Wi-Fi devices through a Wi-Fi access point." — Read what the other company publishes, verified 2026-09-26
    Backs: Home Assistant compatibility
  36. [36] Home Assistant, EufyHome integration page, read in full 2026-09-26: "There is currently support for the following device types within Home Assistant: Light Switch". Footer: "The EufyHome integration was introduced in Home Assistant 0.68", "Its IoT class is Local Polling.", "Legacy integration". — Read what the other company publishes, verified 2026-09-26
    Backs: Home Assistant compatibility
  37. [37] eufy, 'eufy Plus Membership' page, read in full 2026-09-26 twice. The plain read: "eufy Plus Member Benefits 30-Day Cloud Backup History (All Devices)" and "eufy Plus Membership operates on an auto-renewal subscription model.", with no plan price anywhere in the text. The rendered read (fingerprint fb222ea01ef3, basis rendered), with the Monthly tab showing: "Become a eufy Plus Member $15.00 per Month". The annual price is behind the page's 'Annually' tab and appeared in neither read. — Read on the maker's own site, verified 2026-09-26
  38. [38] This record's own who-it's-for line as it stood before 2026-09-26 (no new external read), verbatim: "Alexa/Google households that want lock + 2K doorbell cam in one device with 0.6s palm-vein unlock and no required plan.", verified 2026-09-26
  39. [39] eufy's FamiLock S3 Max landing page, read in full on 2026-10-03: "Smarter Integration with Matter and Apple Home Universal Compatibility Seamlessly integrates with Apple Home, Google Home, Alexa, and SmartThings. Matter support ensures cross-platform compatibility, while Matter over Wi-Fi provides faster, more reliable connections." · comparison column: "Unlock Methods Palm Vein, App, Voice Control, Password, Keys" · "External Ecosystem Support Matter, Apple Home, Alexa, Google Home" — Re-checked this against its sources, verified 2026-10-03
    Backs: Apple Home compatibility, SmartThings compatibility
  40. [40] eufy's FamiLock S3 Max product page, read in full on 2026-10-03: "[Note: Camera streams are not supported via Matter due to current limitations. For full features and the best experience, please use the eufy App.]" · spec row "External Ecosystem Support Matter/Apple Home/Alexa/Google Home" — Re-checked this against its sources, verified 2026-10-03
    Backs: Apple Home compatibility
  41. [41] Samsung's Works with SmartThings partner directory, eufy's page, read on 2026-10-03: "eufy FamiLock S3 Max Model Number T85V0 Category Door lock", on its own row beside the FamiLock S3 (T85V0C). — Re-checked this against its sources, verified 2026-10-03
    Backs: SmartThings compatibility
  42. [42] Apple Support, 'Pair and manage your Matter accessories' (published May 07, 2026), read in full on 2026-10-03: "The Home app currently supports these types of Matter accessories: air conditioners, bridges, lights, locks, outlets, switches, thermostats, blinds and shades, and sensors (motion, ambient light, contact, temperature, and humidity)." — Re-checked this against its sources, verified 2026-10-03
    Backs: Apple Home compatibility
  43. [43] eufy's FamiLock S3 Max landing page, read in full on 2026-10-04. Verbatim: "Smarter Integration with Matter and Apple Home Universal Compatibility Seamlessly integrates with Apple Home, Google Home, Alexa, and SmartThings. Matter support ensures cross-platform compatibility, while Matter over Wi-Fi provide" · comparison row "External Ecosystem Support Matter, Apple Home, Alexa, Google Home". The page does not name Home Assistant. — Re-checked this against its sources, verified 2026-10-04
    Backs: Home Assistant compatibility
  44. [44] eufy's product page for the FamiLock S3 Max, read in full on 2026-10-04. Verbatim: "Matter support ensures cross-platform compatibility." · "[Note: Camera streams are not supported via Matter due to current limitations. For full features and the best experience, please use the eufy App.]" · "External Ecosystem Support Matter/Apple Home/Alexa/Google Home". — Re-checked this against its sources, verified 2026-10-04
    Backs: Home Assistant compatibility
  45. [45] Home Assistant's EufyHome integration page, read in full on 2026-10-04. Verbatim: "There is currently support for the following device types within Home Assistant: Light Switch" · "Its IoT class is Local Polling." · "Legacy integration" · "Categories Hub Light Switch". It covers no lock. — Re-checked this against its sources, verified 2026-10-04
    Backs: Home Assistant compatibility
  46. [46] eufy's FamiLock S3 Max landing page, read in full on 2026-10-07. Verbatim: "Smarter Integration with Matter and Apple Home Universal Compatibility Seamlessly integrates with Apple Home, Google Home, Alexa, and SmartThings. Matter support ensures cross-platform compatibility, while Matter over Wi-Fi provides faster, more reliable connections." · "Unlock Methods Palm Vein, App, Voice Control, Password, Keys" · "External Ecosystem Support Matter, Apple Home, Alexa, Google Home". The page names no Google action outside Matter and does not say whether the lock requires a PIN to unlock over Matter. — Re-checked this against its sources, verified 2026-10-07
    Backs: Google Home compatibility
  47. [47] eufy's US store page for the FamiLock S3 Max, read in full on 2026-10-07. Verbatim: "Universal Compatibility Matter support ensures cross-platform compatibility." · "Does eufy FamiLock S3 Max support external integration with other smart home platforms? Camera streams are not supported via Matter due to current limitations. For full features and the best experience, please use the eufy App." The page names no Google route outside Matter and says nothing about a PIN for unlocking over Matter. — Re-checked this against its sources, verified 2026-10-07
    Backs: Google Home compatibility
  48. [48] This record's own entries, which already name the HomeBase this hub page covers., verified 2026-10-09
  49. [49] eufy's US store page for the FamiLock S3 Max, read in full on 2026-10-09. Buy box: "$399.99 Save $14.99 Extra as Plus Member" and "$ $399 . 99 Save up to $114.99 in total Add to Cart Buy Now". Specs: "Built-In Wi-Fi Direct Wi-Fi Unlock Methods Palm Vein, App, Voice Control, Password, Keys Built-In Video Doorbell Y Cam Resolution 2K HDR Display 4 inch Display Battery Type 15000mAh+4*AAA Battery Life 5 months Charger Requirement 5V/2A" and "External Ecosystem Support Matter/Apple Home/Alexa/Google Home". Power FAQ: "When the lithium battery is low, standard batteries provide emergency power, allowing PIN code access to lock/unlock, while other functions are unavailable." Plus offer: "Monthly Plus Member You can unsubscribe at any time. $15.00/month" and "$135/year". HomeBase: "Pair with eufy HomeBase™ 3 for advanced AI.", the FAQ answer "is expected to be compatible with HB2 in Q2 of 2025." and the product note "This video lock is not compatible with HomeBase™ 2." — Read the original source directly, verified 2026-10-09
    Backs: Price, Product identity, Market availability, Protocols, Power source, Batteries, Subscription, Required hub or bridge, Service status
  50. [50] eufy's FamiLock S3 Max landing page, read in full on 2026-10-09. Platforms: "Seamlessly integrates with Apple Home, Google Home, Alexa, and SmartThings. Matter support ensures cross-platform compatibility, while Matter over Wi-Fi provides faster, more reliable connections." HomeBase: "Pair with eufy HomeBase™ 3 for advanced AI that detects people, vehicles, pets, and more, along with secure local storage* for access logs and video footage, enhancing privacy and automation." and the footnote "*If you choose to use cloud-based features such as cloud storage or push notifications with thumbnail previews, videos or thumbnail previews will be sent to the cloud as needed to provide your selected features." Battery: "Features a 15,000mAh rechargeable lithium battery and 4 AAA batteries for backup to keep your lock running smoothly during recharges." Comparison column: "Built-In Wi-Fi Direct Wi-Fi" and "External Ecosystem Support Matter, Apple Home, Alexa, Google Home". The page does not name Home Assistant. — Read the original source directly, verified 2026-10-09
    Backs: Protocols, Apple Home compatibility, Google Home compatibility, SmartThings compatibility, Batteries, Subscription
  51. [51] eufy's Plus membership page, read in full on 2026-10-09. Its benefits list opens "eufy Plus Member Benefits 30-Day Cloud Backup History (All Devices)". The plain read prints no membership price; the price is read on the product page (entry bq107-t8-20261009-familock-product-page). — Read the original source directly, verified 2026-10-09
    Backs: Subscription
  52. [52] The Connectivity Standards Alliance's certified-product listing for the eufy FamiLock S3 Max, read in full on 2026-10-09 and restated in our own words: Matter certificate CSA2480FMAT44738-24, issued to Anker Innovations on 30 December 2024, for maker number 0x1533 and product number 0x000F, over Wi-Fi and Bluetooth, with a door lock as the primary device type. — Checked a certification register, verified 2026-10-09
    Backs: Protocols, Certification and product IDs
  53. [53] Samsung's Works with SmartThings partner page for eufy, read in full on 2026-10-09 with the product table drawn in the browser. This lock's row: "eufy FamiLock S3 Max Model Number T85V0 Category Door lock". The plain read of the same address, also taken on 2026-10-09, shows no product table. — Read the original source directly, verified 2026-10-09
    Backs: SmartThings compatibility
  54. [54] Home Assistant's Matter integration page, read in full on 2026-10-09. Lock actions: "Set a Matter lock credential ( matter.set_lock_credential ) Adds or updates a credential, such as a PIN, on a Matter lock." Reach: "Thread devices through a Thread border router." and "Wi-Fi devices through a Wi-Fi access point." Controller: "This Matter Server app runs the controller software as a separate process". — Read what the other company publishes, verified 2026-10-09
    Backs: Home Assistant compatibility
  55. [55] Home Assistant's EufyHome integration page, read in full on 2026-10-09: "There is currently support for the following device types within Home Assistant: Light Switch" and "Its IoT class is Local Polling." — Read what the other company publishes, verified 2026-10-09
    Backs: Home Assistant compatibility
  56. [56] Apple's support article on Matter accessories, read in full on 2026-10-09: "The Home app currently supports these types of Matter accessories: air conditioners, bridges, lights, locks, outlets, switches, thermostats, blinds and shades, and sensors". — Read what the other company publishes, verified 2026-10-09
    Backs: Apple Home compatibility
  57. [57] eufy's US store page for the FamiLock S3 Max, read in full on 2026-10-09; both sentences are quoted on entry bq107-t8-20261009-familock-product-page. — Read the original source directly, verified 2026-10-09
  58. [58] eufy's US store page for the FamiLock S3 Max, read in full on 2026-10-11. Spec row: "Built-In Video Doorbell Y" · product note: "[Note: Camera streams are not supported via Matter due to current limitations. For full features and the best experience, please use the eufy App.]" — Re-checked this against its sources, verified 2026-10-11
    Backs: Capabilities
  59. [59] eufy's US store page for the FamiLock S3 Max, read in full on 2026-10-11: "Camera streams are not supported via Matter due to current limitations. For full features and the best experience, please use the eufy App." (in the product note and again in the FAQ answer to "Does eufy FamiLock S3 Max support external integration with other smart home platforms?") — Re-checked this against its sources, verified 2026-10-11
    Backs: Apple Home compatibility, SmartThings compatibility, Home Assistant compatibility, Google Home compatibility
  60. [60] eufy's support article 'Using Amazon Alexa for eufy Devices', read in full on 2026-10-11. Its lock list: "eufy Smart Locks (Smart Lock Touch with wifi bridge, Smart Lock with wifi bridge, Smart Lock Touch & Wi-Fi, Solo Smart Lock D20)". Lock commands: "If you have connected the eufy smart lock (need Wi-Fi bridge) with Alexa, then you can give the command to Alexa for lock and unlock by voicing your code." The article does not name the FamiLock S3 Max. — Re-checked this against its sources, verified 2026-10-11
    Backs: Amazon Alexa compatibility
  61. [61] eufy's support article 'Confirm Compatibility Between eufy Devices and Smart Home Devices', read in full on 2026-10-11. Its lock rows name "Smart Lock (E30, E31, C34 )", "Smart Lock Touch", "Smart Lock with WiFi Bridge", "Smart Lock Touch with WiFi Bridge", "Smart Lock Touch & WiFi" and "Smart Lock D20"; the FamiLock S3 Max is not in either table. — Re-checked this against its sources, verified 2026-10-11
  62. [62] eufy's US store page for the FamiLock S3 Max, read in full on 2026-10-12. Buy box: "$399.99 Save $14.99 Extra as Plus Member". Specs: "Built-In Video Doorbell Y", "Battery Type 15000mAh+4*AAA Battery Life 5 months" and "External Ecosystem Support Matter/Apple Home/Alexa/Google Home". Product note: "Camera streams are not supported via Matter due to current limitations. For full features and the best experience, please use the eufy App." and "This video lock is not compatible with HomeBase™ 2." Plus offer: "$15.00/month" and "$135/year". — Read the original source directly, verified 2026-10-12
    Backs: Price, Product identity, Protocols, Power source, Batteries, Subscription, Required hub or bridge, Capabilities, Research status
  63. [63] eufy's FamiLock S3 Max landing page, read in full on 2026-10-12: "Seamlessly integrates with Apple Home, Google Home, Alexa, and SmartThings." and "Matter support ensures cross-platform compatibility, while Matter over Wi-Fi provides faster, more reliable connections." Its spec row for this lock: "External Ecosystem Support Matter, Apple Home, Alexa, Google Home". — Read the original source directly, verified 2026-10-12
    Backs: Amazon Alexa compatibility, Google Home compatibility, Apple Home compatibility, SmartThings compatibility, Protocols
  64. [64] eufy's Plus membership page, read in full on 2026-10-12: the benefits list opens "30-Day Cloud Backup History (All Devices)". — Read the original source directly, verified 2026-10-12
    Backs: Subscription
  65. [65] eufy's support article 'Using Amazon Alexa for eufy Devices', read in full on 2026-10-12. Its lock list: "eufy Smart Locks (Smart Lock Touch with wifi bridge, Smart Lock with wifi bridge, Smart Lock Touch & Wi-Fi, Solo Smart Lock D20)". The article does not name the FamiLock S3 Max. — Read the original source directly, verified 2026-10-12
    Backs: Amazon Alexa compatibility
  66. [66] eufy's support article 'Compatibility Between eufy Devices and Smart Home Devices', read in full on 2026-10-12: its tables list eufy cameras, doorbells, sensors and older locks against Alexa, Google Voice Assistant and HomeKit and do not name the FamiLock S3 Max. — Read the original source directly, verified 2026-10-12
  67. [67] The Connectivity Standards Alliance's certified-product listing for the eufy FamiLock S3 Max, read in full on 2026-10-12 and restated in our own words: Matter certificate CSA2480FMAT44738-24, issued to Anker Innovations on 30 December 2024, for maker number 0x1533 and product number 0x000F, over Wi-Fi and Bluetooth, with a door lock as the primary device type. — Checked a certification register, verified 2026-10-12
    Backs: Protocols, Certification and product IDs
  68. [68] Home Assistant's EufyHome integration page, read in full on 2026-10-12: "There is currently support for the following device types within Home Assistant: Light Switch" and "Its IoT class is Local Polling." — Read what the other company publishes, verified 2026-10-12
    Backs: Home Assistant compatibility
  69. [69] Apple's support article on Matter accessories, read in full on 2026-10-12: "The Home app currently supports these types of Matter accessories: air conditioners, bridges, lights, locks, outlets, switches, thermostats, blinds and shades, and sensors". — Read what the other company publishes, verified 2026-10-12
    Backs: Apple Home compatibility
  70. [70] Samsung's Works with SmartThings partner page for eufy, rendered read on 2026-10-12; its product list carries the line 'eufy FamiLock S3 Max Model Number T85V0 Category Door lock'. — Read the platform's own documentation, verified 2026-10-12
    Backs: SmartThings compatibility
  71. [71] Home Assistant's Matter integration page, read in full on 2026-10-12. Verbatim: "Its IoT class is Local Push." — Read the platform's own documentation, verified 2026-10-12
  72. [72] SmartThings' own matter-lock Edge driver fingerprint file (its source in the SmartThingsCommunity/SmartThingsEdgeDrivers repository). Verbatim: id: "5427/15" · deviceLabel: eufy FamiLock S3 Max · vendorId: 0x1533 · productId: 0x000F · deviceProfileName: lock-user-pin-battery — Read the platform's own documentation, verified 2026-10-13
    Backs: What your assistant can automate
  73. [73] SmartThings' own lock-user-pin-battery device profile in the matter-lock Edge driver (its source in the SmartThingsCommunity/SmartThingsEdgeDrivers repository). Verbatim: name: lock-user-pin-battery · components: · - id: main · capabilities: · - id: lock · version: 1 (no optional flag) — Read the platform's own documentation, verified 2026-10-13
    Backs: What your assistant can automate
  74. [74] eufy's US store page for the FamiLock S3 Max, read in full on 2026-10-14. Buy box: "$399.99 Save $17.99 Extra as Plus Member". Specs: "Built-In Video Doorbell Y", "Battery Type 15000mAh+4*AAA Battery Life 5 months", "eufy Ecosystem Support Doorbell&Cam&Homebase™ 3" and "External Ecosystem Support Matter/Apple Home/Alexa/Google Home". Product notes: "Camera streams are not supported via Matter due to current limitations. For full features and the best experience, please use the eufy App.", "Matter is now compatible with HomeBase™ 3 for simultaneous use." and "This video lock is not compatible with HomeBase™ 2." Feature row: "Pair with eufy HomeBase™ 3 for advanced AI." Plus offer: "$15.00/month" and "$135/year". — Read the original source directly, verified 2026-10-14
    Backs: Price, Product identity, Protocols, Power source, Batteries, Subscription, Required hub or bridge, Capabilities
  75. [75] eufy's FamiLock S3 Max landing page, read in full on 2026-10-14: "Seamlessly integrates with Apple Home, Google Home, Alexa, and SmartThings." and "Matter support ensures cross-platform compatibility, while Matter over Wi-Fi provides faster, more reliable connections." Its spec row for this lock: "External Ecosystem Support Matter, Apple Home, Alexa, Google Home". — Read the original source directly, verified 2026-10-14
    Backs: Amazon Alexa compatibility, Google Home compatibility, Apple Home compatibility, SmartThings compatibility, Protocols
  76. [76] eufy's Plus membership page, read in full on 2026-10-14: the benefits list opens "30-Day Cloud Backup History (All Devices)". — Read the original source directly, verified 2026-10-14
    Backs: Subscription
  77. [77] eufy's support article 'Using Amazon Alexa for eufy Devices', read in full on 2026-10-14. Its lock list: "eufy Smart Locks (Smart Lock Touch with wifi bridge, Smart Lock with wifi bridge, Smart Lock Touch & Wi-Fi, Solo Smart Lock D20)". The article does not name the FamiLock S3 Max. — Read the original source directly, verified 2026-10-14
    Backs: Amazon Alexa compatibility
  78. [78] eufy's support article 'Compatibility Between eufy Devices and Smart Home Devices', read in full on 2026-10-14: its tables list eufy cameras, doorbells, sensors and older locks against Alexa, Google Voice Assistant and HomeKit and do not name the FamiLock S3 Max. — Read the original source directly, verified 2026-10-14
  79. [79] The Connectivity Standards Alliance's certified-product listing for the eufy FamiLock S3 Max, read in full on 2026-10-14 and restated in our own words: Matter certificate CSA2480FMAT44738-24, issued to Anker Innovations on 30 December 2024, for maker number 0x1533 and product number 0x000F, over Wi-Fi and Bluetooth, with a door lock as the primary device type. — Checked a certification register, verified 2026-10-14
    Backs: Protocols, Certification and product IDs
  80. [80] Home Assistant's EufyHome integration page, read in full on 2026-10-14: "There is currently support for the following device types within Home Assistant: Light Switch" and "Its IoT class is Local Polling." — Read what the other company publishes, verified 2026-10-14
    Backs: Home Assistant compatibility
  81. [81] Apple's support article on Matter accessories, read in full on 2026-10-14: "The Home app currently supports these types of Matter accessories: air conditioners, bridges, lights, locks, outlets, switches, thermostats, blinds and shades, and sensors". — Read what the other company publishes, verified 2026-10-14
    Backs: Apple Home compatibility
  82. [82] Samsung's Works with SmartThings partner page for eufy, rendered read on 2026-10-14; its product list carries the line 'eufy FamiLock S3 Max Model Number T85V0 Category Door lock'. — Read the platform's own documentation, verified 2026-10-14
    Backs: SmartThings compatibility
  83. [83] Home Assistant's Matter integration page, read in full on 2026-10-14. Verbatim: "Its IoT class is Local Push." — Read the platform's own documentation, verified 2026-10-14
  84. [84] SmartThings' own matter-lock Edge driver fingerprint file (its source in the SmartThingsCommunity/SmartThingsEdgeDrivers repository). Verbatim: id: "5427/15" · deviceLabel: eufy FamiLock S3 Max · vendorId: 0x1533 · productId: 0x000F · deviceProfileName: lock-user-pin-battery — Read the platform's own documentation, verified 2026-10-14
    Backs: What your assistant can automate
  85. [85] SmartThings' own lock-user-pin-battery device profile in the matter-lock Edge driver (its source in the SmartThingsCommunity/SmartThingsEdgeDrivers repository). Verbatim: name: lock-user-pin-battery · components: · - id: main · capabilities: · - id: lock · version: 1 (no optional flag) — Read the platform's own documentation, verified 2026-10-14
    Backs: What your assistant can automate
  86. [86] eufy's FamiLock S3 Max User Guide (the PDF linked from eufy's US store page as 'User Guide 2025-06-16'), read in full on 2026-10-14: "Install the 4 AAA batteries first.", "Install the rechargeable battery." and "If only the AAA batteries are installed, most of the features will be disabled, including video surveillance, palm vein recognition, etc." Matter step: "This smart lock is Matter-compatible, enabling seamless integration with Apple Home, SmartThings, Alexa, and Google-enabled devices in your home." — Read the original source directly, verified 2026-10-14
    Backs: Batteries
  87. [87] Record-keeping entry: each maker disagreement on this page now says what is at stake for a buyer (the 2026-10-21 split into shown findings and research notes)., verified 2026-10-21

Compatibility and lifecycle information reflects the last-verified date above and can change without notice (firmware updates, cloud-service changes, discontinuations). It is provided as-is, for information — verify with the manufacturer before purchasing. Spot an error? Tell us and we'll fix it. Full terms: Terms of Service.

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