Product Library / Blinds, Shades & Curtains

SwitchBot Curtain 3

Compiled by SmartHomeWorkflow Research · SwitchBot · Blinds, Shades & Curtains · ~$89.99 (at time of research, SwitchBot's own store — the U Rail 1-Pack. The rail type changes the price: Rod Type 1 is US$99.99 for one. Multi-packs are inconsistent about discounting — U Rail 2-Pack US$179.98 and 4-Pack US$359.96 are strict multiples, while Rod Type 1 2-Pack US$169.99 is cheaper than two singles and the 4-Pack is US$339.98. An I Rail Accessory Kit is a separate US$9.99 purchase. Never treated as a live price.)

Compatibility

? 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.

Protocols: BLUETOOTH^[1][2][7]

Needs before it works: Not for the curtain itself, and yes for every ecosystem. SwitchBot's listing describes app control directly and then puts the platforms behind a hub in two sentences that name two different hubs: 'With SwitchBot Hub, you can also use voice commands via Alexa, Google Home, SmartThings, Siri Shortcuts, and IFTTT', and 'With SwitchBot Hub 2 (sold separately), Curtain 3 supports Matter and can be integrated with Apple HomeKit. Control your curtains via the Home App or using your HomePod/Apple Watch.' As with the Blind Tilt, the Hub 2 is the one that carries Matter and Apple; a cheaper SwitchBot hub reaches the voice services only.^[2]

What it can do^[2]

Listed capabilities are what we could establish from vendor documentation. An ability missing here is unestablished — not necessarily absent.

Subscription reality^[2]

✓ Works without a subscription: Yes.

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

No subscription is referenced anywhere on SwitchBot's store listing for this product, including its feature copy and warranty section.

Maintenance reality^[3]

• Batteries: rechargeable, capacity not published on the listing; the SwitchBot Solar Panel 3 is sold separately
• Works without the internet: Not established — we have not sourced this yet. It does not mean the product fails without the internet.
• SwitchBot publishes no battery capacity and no rated battery life for this product on the listing, and neither is recorded — a real gap, since the previous generation's runtime is one of the things a buyer wants to know. The solar panel is a separate purchase here, unlike the Blind Tilt where it ships in the box. Motor thrust is claimed at 'over twice the thrust compared to the previous gen', rated for 'heavy curtains (up to 15KG)'. Silent Mode is rated 'below 25dB', described as making the curtain 'drift slower and quieter' — the same speed-for-silence trade SwitchBot's Roller Shade makes explicit. Dimensions depend on the rail type: 78 x 71 x 205 mm (3.1 x 2.8 x 8.1 in.) for the Rod version and 66 x 51 x 173 mm (2.6 x 2 x 6.8 in.) for U Rail; weight 280 g (9.9 oz.). A positioning magnet is included for precise travel limits. Warranty is one year. No BLE version, connectivity range, operating temperature or app OS requirement is published on this listing.
• Security updates: SwitchBot declares a security-update period for this model as a length rather than a date: "2 years of software update support, counted from launch — SwitchBot states the period as a rule but publishes an end date for only one product, which is not this one" (the document this comes from names no country, so which markets it legally covers is not stated). That is a floor measured from a starting point the manufacturer sets — a launch or a purchase — rather than a fixed end date, so it cannot be placed on a calendar here. We record the manufacturer's words rather than converting them into a date it did not give. This is a published commitment, not a gap in our research.^[6]

The catch

The rail type is the first decision and it is not reversible by software: SwitchBot sells this as U Rail, Rod Type 1 and an I Rail accessory kit, at different prices, and buying the wrong one means the motor will not mount on your curtain track. Measure before ordering. The second thing is the hub, which follows SwitchBot's usual shape — the motor answers the app over Bluetooth on its own, but Alexa, Google Home, SmartThings, Siri Shortcuts and IFTTT all need a SwitchBot hub, and Matter and Apple Home need the Hub 2 specifically. Third, Silent Mode is real but it is a trade: SwitchBot rates it below 25 dB and says the curtain will 'drift slower' to get there, so the quiet setting is the slow setting. Fourth, and unusually for a product at this price, SwitchBot publishes no battery capacity and no rated battery life on this listing — the Solar Panel 3 is sold separately, so the recharging question is both unanswered and unbundled. The 15 kg thrust rating is the number that matters for heavy or lined curtains, and it is the one spec SwitchBot does state plainly.

Who it's for

Someone with existing curtains on a rod or a U/I rail who wants them to open on a schedule or by voice without replacing the track. It suits heavier curtains — the 15 kg thrust rating is the reason to pick this over a lighter retrofit — and it suits a household that already owns a SwitchBot hub, or an Apple household willing to buy the Hub 2 specifically. It is the wrong pick if the window has blinds with slats rather than draw curtains, if the rail type is unusual enough that none of the three mounting options fits, or if Home Assistant is the intended home — SwitchBot does not document this product for Home Assistant, and the catalogue does not fill that gap with an inference.

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 →

1. [1] Home Assistant's SwitchBot integration is a BLUETOOTH integration — it states in its own words that "A SwitchBot Hub is not required for this integration" — and it names this device with control features, which is a usable control path under the ruled definition. Curtain 3 features: open/close/pause, set position, get position, get light level, get battery level, get calibration state, set curtain movement speed. · The same page's "Works with Home Assistant" section lists the devices SwitchBot has certified for Bluetooth and names "SwitchBot Curtain 3" among them. ⚠ SwitchBot's own product description (read 2026-08-09 via the .js structured endpoint) contains ZERO occurrences of "Bluetooth" — recorded as the limit of this evidence rather than left unstated. — vendor-page research + third-party integration documentation, verified 2026-08-09
   Backs: Protocols
2. [2] SwitchBot store listing, SwitchBot Curtain 3 — product description and feature sections — vendor-page research, verified 2026-08-01
   Backs: Product identity, Required hub or bridge, Apple Home compatibility, Amazon Alexa compatibility, Google Home compatibility, SmartThings compatibility, Capabilities, Subscription, Protocols
3. [3] SwitchBot store listing, SwitchBot Curtain 3 — rail and pack options, specification lines and warranty section — vendor-page research, verified 2026-08-01
   Backs: Price, Market availability, Research status, Maintenance, Power source, Installation
4. [4] SwitchBot store listing, SwitchBot Curtain 3 — the third-party platform enumeration in the feature copy — vendor-page research, verified 2026-08-01
   Backs: Home Assistant compatibility
5. [5] SwitchBot Curtain 3 product page, re-read 2026-08-18 — no sentence about Bluetooth-only control, hub requirement for remote access, or internet-outage behaviour. — vendor-page research, verified 2026-08-18
6. [6] SwitchBot's own Vulnerability Disclosure Policy (www.switch-bot.com/pages/switchbot-vulnerability-disclosure-policy), read in full 2026-08-20. The commitment, verbatim: "We will deliver an updated experience for you on a regular basis including updated security patches. The period of software update support is 2 years, see the table below for details." The table it points to contains exactly ONE row — "SwitchBot Floor Cleaning Robot S10 | 2023/10/16 | 2025/12/31" — under the headings "Product Name", "Launch Date" and "End date of software update support". The same policy publishes remediation targets rather than a support horizon: "critical and high-risk vulnerabilities will be fixed within three working days, high-risk vulnerabilities within 0.5 months, medium-risk vulnerabilities within one month, and low-risk vulnerabilities within four months", with reports to security@switch-bot.com. Rungs walked per method note 69: (a) no SwitchBot regulatory-declaration library (UK PSTI / EU CRA) could be located — a first-party search surfaced only per-product FCC "Safety and Compliance Information" articles, which carry no support period; (b) answered by this policy page; (c) the product's own page sits on `us.switch-bot.com`, a registered refusing host, and was not reachable this pass. — vendor policy-page research (BQ-192 security-support sweep, method note 69 rungs a–c), verified 2026-08-20
   Backs: Security-update support period
7. [7] SwitchBot's own store listing for the Curtain 3, already cited on this record: "With SwitchBot Hub, you can also use voice commands via Alexa, Google Home, SmartThings, Siri Shortcuts, and IFTTT all from your sofa", and "With SwitchBot Hub 2 (sold separately), Curtain…". Home Assistant reaches the device through its BLUETOOTH integration, which states in its own words "A SwitchBot Hub is not required for this integration" — establishing a Bluetooth control path, not a Matter one. — protocols-definition sweep (BQ-222 batch 1; ruling §1 of docs/decisions/2026-08-20-RULINGS-SITTING.md), verified 2026-08-20
   Backs: Protocols
8. [8] SmartHomeWorkflow record maintenance (BQ-250 securitySupport.region backfill) — internal-review of the document this record already cites, verified 2026-08-27

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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