Product Library / Water Protection & Plumbing

Research profile · verified 2026-08-30 · sources re-checked 2026-11-02, unchanged

Phyn Smart Water Assistant

Compatibility at a glance

Does it work with your home?

[2]
[4][23]
[3][22]
[2][19]
[2][5][20][21]

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

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

Protocols: WIFI[1]

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.

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

Water flow

The device reports this event.

Compare its platform availability in the table below.

Setup and sources

Device documentation: [2] [3] [4]

Documented device function

Leak detected

The device reports this event.

Compare its platform availability in the table below.

Setup and sources

Device documentation: [2] [3] [4]

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?[2][3][4]

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

Controls
None documented by the vendor
Reported events
2 documented

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

Documented device functions, platform controls and automation availability
Device functionApple HomeDoesn't work[2]Google HomeWorks; water flow unconfirmed[4][23]AlexaWorks, by a limited route[3][22]SmartThingsInconclusive[2][19]Home AssistantInconclusive[2][5][20][21]
Water flowReported event
Event

Doesn't work

Event

Not stated

Event

Works

Event

Inconclusive

Event

Inconclusive

Leak detectedReported event
Event

Doesn't work

Event

Works

Event

Not stated

Event

Inconclusive

Event

Inconclusive

Automation availability for this model is not established.

✓ 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.

Setup and sources

Apple Home

No Apple Home route, and the evidence is consistent across two independent readings a year apart in this catalog. Phyn's help centre publishes voice-integration articles for exactly two platforms — Amazon Echo/Alexa and Google Home — with no Apple, HomeKit or Siri article for this product. The sibling Phyn Plus record's 2026-07-19 verification separately established that Phyn's own product pages list only Alexa, Google Home and IFTTT, and recorded the relevant history: Belkin announced a HomeKit-enabled Phyn water assistant in 2019 that never shipped. There is no Matter certification, so no protocol-level fallback exists either.[2]

Google Home

Set up the same way as Alexa — add the device in Google Home, search for Phyn, sign in with Phyn credentials. Phyn's article for the Smart Water Assistant says you can ask whether a leak has been detected, with the example 'Hey Google, is there a leak in Phyn Water?', and check the device's status. It names no water-use question for Google, so water flow is unconfirmed there, and it documents no announcement when a leak starts. One practical wrinkle Phyn calls out: device names created in Google Home 'exist only in Google Home. They do not change the device names in the Phyn app', so the two apps can disagree about what a device is called.[4][23]

Water flow: Query-only, including a documented leak-status question, but no proactive notification.

Leak detected: Query-only, including a documented leak-status question, but no proactive notification.

Alexa

Phyn's help article for the Smart Water Assistant sets Alexa up through the 'Phyn Device' skill and Phyn account linking, configured from the app's Settings > Smart Home Integrations. You use it by asking the skill: 'Alexa, ask Phyn Device for my water status', 'Alexa, ask Phyn Device how much water I used today' and '…this month', and for multi-property accounts 'Alexa, ask Phyn Device for my water status at Vacation Home'. That is control by spoken request to the skill: Phyn does not say the device shows up as a device in the Alexa app or in routines. Water use works that way; leak detected is unconfirmed, because Phyn names no leak question or leak announcement for Alexa, so the alarm path stays Phyn's own SMS and push notifications. This device has no valve, so unlike the Phyn Plus there is nothing for Alexa to shut off.[3][22]

Water flow: Query-only: water status and usage totals. No valve exists to actuate, and no proactive leak notification is documented.

Leak detected: Query-only: water status and usage totals. No valve exists to actuate, and no proactive leak notification is documented.

SmartThings

No path was found and nothing settles it — the same position we reached for the Phyn Plus, for the same reason. What Phyn publishes is a help centre, not a compatibility list: it carries an article on connecting this device to an Amazon Echo and an article on Google, and no article about SmartThings. Two support articles are not a maker saying those two are the only platforms, so SmartThings is unaddressed rather than excluded. On the SmartThings side the only substantive material is an unresolved 2019 community thread noting that Phyn had closed off outside access to its service, and no SmartThings driver is known. A seven-year-old forum thread is not evidence of a current no, so this stays unknown rather than borrowing a firm no it cannot support.[2][19]

Home Assistant

Phyn documents no Home Assistant support. A community-built add-on for Phyn exists and is actively maintained — we verified it for the Phyn Plus, where it exposes usage, temperature, pressure, flow and valve control by signing into Phyn's closed service with your account details — but it is not official, and nothing we read confirms it covers the Smart Water Assistant, which is a different kind of device with no valve. We record this as unknown rather than borrowing the answer from the sibling: the same add-on can support one model and not another, and the sibling's own history — a Phyn service change on 2025-06-11 broke it — shows how fragile that route is.[2][5][20][21]

Device documentation: [2] [3] [4]

  • Alexa: Query-only: water status and usage totals. No valve exists to actuate, and no proactive leak notification is documented.
  • Google Home: Query-only, including a documented leak-status question, but no proactive notification.

Empty actions is the defining fact, not an omission: this device senses and reports, and the water keeps running until a human acts. It is the same distinction that separates this subcategory from water-shutoff-valves, where the Phyn Plus lives.

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, by a limited routeWorks, by a limited route — see the catch[3][22]Phyn's help article for the Smart Water Assistant sets Alexa up through the 'Phyn Device' skill and Phyn account linking, configured from the app's Settings > Smart Home Integrations. You use it by asking the skill: 'Alexa, ask Phyn Device for my water status', 'Alexa, ask Phyn Device how much water I used today' and '…this month', and for multi-property accounts 'Alexa, ask Phyn Device for my water status at Vacation Home'. That is control by spoken request to the skill: Phyn does not say the device shows up as a device in the Alexa app or in routines. Water use works that way; leak detected is unconfirmed, because Phyn names no leak question or leak announcement for Alexa, so the alarm path stays Phyn's own SMS and push notifications. This device has no valve, so unlike the Phyn Plus there is nothing for Alexa to shut off.
Google HomeWorks; water flow unconfirmedWorks; water flow unconfirmed — see the catch[4][23]Set up the same way as Alexa — add the device in Google Home, search for Phyn, sign in with Phyn credentials. Phyn's article for the Smart Water Assistant says you can ask whether a leak has been detected, with the example 'Hey Google, is there a leak in Phyn Water?', and check the device's status. It names no water-use question for Google, so water flow is unconfirmed there, and it documents no announcement when a leak starts. One practical wrinkle Phyn calls out: device names created in Google Home 'exist only in Google Home. They do not change the device names in the Phyn app', so the two apps can disagree about what a device is called.
Apple HomeDoesn't workVerified: does not work with this ecosystem[2]No Apple Home route, and the evidence is consistent across two independent readings a year apart in this catalog. Phyn's help centre publishes voice-integration articles for exactly two platforms — Amazon Echo/Alexa and Google Home — with no Apple, HomeKit or Siri article for this product. The sibling Phyn Plus record's 2026-07-19 verification separately established that Phyn's own product pages list only Alexa, Google Home and IFTTT, and recorded the relevant history: Belkin announced a HomeKit-enabled Phyn water assistant in 2019 that never shipped. There is no Matter certification, so no protocol-level fallback exists either.
SmartThingsInconclusiveWe researched this and the evidence doesn't settle it — the catch explains why[2][19]No path was found and nothing settles it — the same position we reached for the Phyn Plus, for the same reason. What Phyn publishes is a help centre, not a compatibility list: it carries an article on connecting this device to an Amazon Echo and an article on Google, and no article about SmartThings. Two support articles are not a maker saying those two are the only platforms, so SmartThings is unaddressed rather than excluded. On the SmartThings side the only substantive material is an unresolved 2019 community thread noting that Phyn had closed off outside access to its service, and no SmartThings driver is known. A seven-year-old forum thread is not evidence of a current no, so this stays unknown rather than borrowing a firm no it cannot support.
Home AssistantInconclusiveWe researched this and the evidence doesn't settle it — the catch explains why[2][5][20][21]Phyn documents no Home Assistant support. A community-built add-on for Phyn exists and is actively maintained — we verified it for the Phyn Plus, where it exposes usage, temperature, pressure, flow and valve control by signing into Phyn's closed service with your account details — but it is not official, and nothing we read confirms it covers the Smart Water Assistant, which is a different kind of device with no valve. We record this as unknown rather than borrowing the answer from the sibling: the same add-on can support one model and not another, and the sibling's own history — a Phyn service change on 2025-06-11 broke it — shows how fragile that route is.

? Inconclusive means we researched that ecosystem and the evidence doesn’t settle it — the catch says why, and the sources are listed below. It is a statement about the available evidence, never a verdict on the product. A Setup Check researches your exact setup where the official sources don’t answer.

Plans and ongoing costs[11]

✓ Works without a subscription: Yes.

Vendor account required: Yes — you must create a vendor account to use it.[12]

AFFIRMATIVELY SOURCED FROM THIS PRODUCT'S OWN PAGE as of 2026-08-30, closing the gap the record flagged since 2026-07-29. phyn.com/products/phyn labels one of its features 'NO SUBSCRIPTIONS' and states directly: 'You shouldn't have to pay a monthly fee to do your part in saving our water. The Phyn app and all of its features are free and available to download for iOS and Android.' That supersedes the brand-level basis this record previously leaned on (Phyn's published position on the sibling Phyn Plus, verified 2026-07-19: 'No subscription fees. At Phyn, we believe that your data is yours. We don't charge you a fee to access your water use data.') — this is now this product's own page, read directly, rather than an inference carried from a sibling record. Corroborated by the absence finding already on record: no fee, plan or tier language appears in any Smart Water Assistant help-centre article either.

Maintenance and offline use[1][2]

Who it's for

A fit for a single-family homeowner who wants serious leak intelligence — fixture-level attribution, drip and pinhole detection, a diagnostic test that can be run on demand — without cutting into plumbing or hiring a plumber, and who is content to be alerted rather than protected. Good where the main line is accessible under a sink and there is an outlet there, and worthwhile if your insurer offers a discount for an active water monitor. Look elsewhere if you want automatic shutoff (the Phyn Plus does that), if you live in an apartment or share plumbing, if you need Apple Home, if you want alerts that survive an internet outage, or if you want the data exposed to Home Assistant with any certainty.

Check availability at Phyn

This opens Phyn'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 →

23 numbered sources· read them in the source's own words
  1. [1] helpcenter.phyn.com/help/phyn-smart-water-assistant-requirements (first-party help centre), read 2026-07-29 — Read on the maker's own site, verified 2026-07-29
    Backs: Works without the internet, Protocols, Required hub or bridge, Product identity
    page unchanged as of 2026-11-02
  2. [2] helpcenter.phyn.com/help/phyn (first-party help centre, Phyn Assistant product section), read 2026-07-29 — Read on the maker's own site, verified 2026-07-29
    Backs: Works without the internet, Market availability, Capabilities, SmartThings compatibility, Home Assistant compatibility, Apple Home compatibility
    page unchanged as of 2026-11-02
  3. [3] helpcenter.phyn.com — 'Can I connect my Phyn Smart Water Assistant device to my Amazon Echo and use Alexa voice commands?', read 2026-07-29 — Read on the maker's own site, verified 2026-07-29
    Backs: Amazon Alexa compatibility, Capabilities
  4. [4] helpcenter.phyn.com — 'Can I Connect My Phyn Smart Water Assistant to Use Google Home Voice Commands?', read 2026-07-29 — Read on the maker's own site, verified 2026-07-29
    Backs: Google Home compatibility, Capabilities
  5. [5] home-assistant.io/integrations/phyn — no such page, checked 2026-07-29: Home Assistant publishes no built-in Phyn integration — Read the platform's own documentation, verified 2026-08-15
    Backs: Home Assistant compatibility
  6. [6] phyn.com/products/phyn — the page that would settle price, model number and a product-specific subscription statement. The host turned us away as asking too often on both attempts 2026-07-29, requesting a 60-second wait; the wait was honoured once, the host refused again, so it was left alone under our first rule for reading other people's sites and filed in the register of hosts that refuse us. Nothing in this record rests on its content. — Read on the maker's own site, verified 2026-07-29
  7. [7] Phyn's cloud is operating: the help centre documents live Alexa and Google Home account-linking flows against Phyn accounts, and the Phyn app is the alerting path. Inference from active service documentation, not a vendor commitment about service lifetime., verified 2026-07-29
    Backs: Service status
  8. [8] phyn.com/products/phyn and helpcenter.phyn.com's Android setup-and-pairing article for this model, both read 2026-08-30 — the pass that established price, a product-specific subscription statement, and accountRequired, replacing the migrated placeholder this entry used to carry. — Read on the maker's own site, verified 2026-08-30
    Backs: Research status
  9. [9] helpcenter.phyn.com, 'Phyn Smart Water Assistant Requirements' — Read on the maker's own site, verified 2026-08-17
    Backs: Power source
    page unchanged as of 2026-11-02
  10. [10] No source was read for this entry. It classifies evidence this record already carries, and records the classification so it is not re-derived., verified 2026-08-22
  11. [11] phyn.com/products/phyn (first-party product page), read 2026-08-30 — Read on the maker's own site, verified 2026-08-30
    Backs: Price, Market availability, Subscription
  12. [12] helpcenter.phyn.com — 'Android Setup & Pairing – Phyn Smart Water Assistant', read 2026-08-30 — Read on the maker's own site, verified 2026-08-30
    Backs: Vendor account required
  13. [13] helpcenter.phyn.com — 'Phyn Smart Water Assistant Requirements' (stamped 26 Feb 2026) and phyn.com/products/phyn, both read 2026-08-30 — Read on the maker's own site, verified 2026-08-30
    Backs: Service status
    page unchanged as of 2026-11-02
  14. [14] helpcenter.phyn.com — 'Phyn Smart Water Assistant Requirements', read 2026-08-30. No new fact established; this entry records a reading that was refused. — Read on the maker's own site, verified 2026-08-30
  15. [15] the record's own customer-facing prose fields as they stood before 2026-09-05 (no new external read), verified 2026-09-05
  16. [16] Record-keeping entry, 2026-09-15: this record already said Apple Home is not supported, and that answer now names the shared Apple Home rule the reason rests on, verified 2026-09-15
  17. [17] helpcenter.phyn.com — 'Phyn Smart Water Assistant requirements', read 2026-09-16. Verbatim, under 'Installation Requirements': 'Access to the main water supply line under a sink where the device will be installed.'; 'An unswitched electrical outlet under the sink where the device will be installed.'; 'Basic DIY tools: Adjustable wrench Screwdriver Drill (optional)'. — Read on the maker's own site, verified 2026-09-16
    Backs: Installation
    page unchanged as of 2026-11-02
  18. [18] this record's own lifecycle note as it stood before 2026-09-19 (no new external read): its wording was rewritten so it reads in plain language. No fact, date, source or value changed, and the earlier wording is kept on this record., verified 2026-09-19
  19. [19] Phyn's help-centre index, helpcenter.phyn.com/help/phyn, re-read 2026-09-19. It is a list of support articles rather than a compatibility table. Two name a platform for this product — "Can I Connect My Phyn Smart Water Assistant to Amazon Echo and Use Alexa Voice Commands?" and its Google counterpart — and SmartThings appears in no article title on the index. The word Matter appears only in article titles about which sensor goes on which line, not as the standard. — Read on the maker's own site, verified 2026-09-19
    Backs: SmartThings compatibility
    page unchanged as of 2026-11-02
  20. [20] Phyn's help centre section for the Smart Water Assistant ("Last updated on 30 Apr, 2025"), read in full on 2026-10-04. Its platform articles are "Can I Connect My Phyn Smart Water Assistant to Amazon Echo and Use Alexa Voice Commands?" and "Can I Connect My Phyn Smart Water Assistant to Use Google Home Voice Commands?"; Home Assistant appears nowhere in the section. — Re-checked this against its sources, verified 2026-10-04
    Backs: Home Assistant compatibility
    page unchanged as of 2026-11-02
  21. [21] Home Assistant's documentation has no page at the address it uses for a built-in Phyn integration, checked on 2026-10-04 ("Oh no! This page does not exist"), so we could not find an official Home Assistant listing for Phyn., verified 2026-10-04
    Backs: Home Assistant compatibility
  22. [22] Phyn's help article 'Can I Connect My Phyn Smart Water Assistant to Amazon Echo and Use Alexa Voice Commands?', read in full on 2026-10-26 (plain read). Verbatim: "Once you enable the Phyn Device skill in the Amazon Alexa app, you can ask Alexa for water usage and system status updates." · "“Alexa, ask Phyn Device for my water status.” “Alexa, ask Phyn Device how much water I used today.” “Alexa, ask Phyn Device how much water I used this month.”" · "Tap Enable to Use for the Phyn Device skill.", verified 2026-10-26
    Backs: Amazon Alexa compatibility
  23. [23] Phyn's help article 'Can I Connect My Phyn Smart Water Assistant to Use Google Home Voice Commands?', read in full on 2026-10-26 (plain read). Verbatim: "After linking your account, you can: Ask if a leak has been detected Check the status of your Phyn device Example Command “Hey Google, is there a leak in Phyn Water?”" · "Add a new device and search for Phyn . When prompted, sign in using your Phyn account credentials." · "Any device names you create in Google Home exist only in Google Home. They do not change the device names in the Phyn app.", verified 2026-10-26
    Backs: Google Home compatibility

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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