Aqara
Aqara Smart Lock U200 Lite
- Native integration
- Local control
- Thread
- Matter
- Bluetooth
Prices verified September 2026
See more smart locks picks on our Amazon storefront →Our verdict
Budget Matter-over-Thread lock that fits euro profile and UK oval cylinders (emergency function required) — a rare genuinely UK-door-friendly cheap option. It's a retrofit design: your existing cylinder stays put, so a physical key still opens the door from outside if the battery dies. No fingerprint reader or keypad at this tier — those live on the pricier U200/U300 — so unlocking is app, Bluetooth proximity, or the bundled NFC card, plus PIN codes via the separate Aqara Home app, not HA. The 2000mAh battery is rated ~6 months and charges over USB-C, no AAs. Local control via HA's Matter integration, but you'll need a Thread border router.
What can Home Assistant control on the Aqara Smart Lock U200 Lite?
| Control | Type | What it does |
|---|---|---|
| Lock | Lock / Unlock | Standard lock control |
| Battery | Sensor (%) | Battery level — firmware v65+ only |
| Firmware update | Update entity | Notifies and installs new firmware |
HA's native Matter integration only creates three entities here — lock, firmware update, and battery (and battery only after firmware v65+) — with no jam status, tamper state, or PIN/event-log data exposed at all. Manual key unlocking isn't always picked up correctly unless the lock's motor reaches its exact calibrated position, so enabling auto-relock (repositioning the motor after any manual turn) is the practical fix. Because jam/failure states aren't visible to HA, a useful watchdog is alerting if the lock entity hasn't changed state within a few minutes of a door sensor detecting arrival.
Specs
| battery life | Up to ~6 months per charge (usage-dependent) |
|---|---|
| battery type | Built-in 7.4V 2000mAh rechargeable Li-ion (USB-C charging) |
| connectivity | Thread (Matter), Bluetooth |
| app requirement | Aqara Home app (setup, PIN codes, remote access); Home Assistant control is separate via Matter |
| backup unlock method | Existing physical key (outside, via unchanged cylinder) and bundled NFC sticker card |
| keypad or fingerprint | None — app, Bluetooth proximity, and NFC card only; fingerprint/keypad only on U200 and U300 |
| cylinder compatibility | Euro profile and Scandinavian oval cylinders with emergency function (retrofits over existing cylinder — no cylinder replacement) |
How does the Aqara Smart Lock U200 Lite compare?
| Product | From | Protocol | Local control | Integration |
|---|---|---|---|---|
| Aqara Smart Lock U200 Lite (this product) | £105.99 | Thread, Matter, Bluetooth | Yes | Native |
| Aqara Smart Lock U200 | £169.99 | Thread, Matter, Bluetooth | Yes | Native |
| Aqara Smart Rim Lock U500 | £279.98 | Matter, Thread, Bluetooth | Yes | Native |
| igloohome Mortise 2+ | £439.99 | Bluetooth, Wi-Fi | Cloud | Cloud |
Frequently asked questions
- Does the Aqara Smart Lock U200 Lite work with Home Assistant locally?
- Yes. The Aqara Smart Lock U200 Lite is controlled locally in Home Assistant through a built-in Home Assistant core integration (matter), so it keeps working if your internet connection or the Aqara cloud goes down. Control and state updates stay on your own network.
- Which protocol does the Aqara Smart Lock U200 Lite use, and do I need a hub?
- The Aqara Smart Lock U200 Lite uses Thread and Matter and Bluetooth. To pair it with Home Assistant you need a Thread border router (Home Assistant Connect ZBT-1, Apple TV 4K or a HomePod mini all work); or a Thread border router if it is Matter-over-Thread, or just your Wi-Fi network if it is Matter-over-Wi-Fi; or a Bluetooth adapter on your Home Assistant host or an ESPHome Bluetooth proxy. Aqara's own hub is not required when you integrate through a built-in Home Assistant core integration (matter).
- How much does the Aqara Smart Lock U200 Lite cost in the UK?
- The lowest price we have listed for the Aqara Smart Lock U200 Lite is £105.99 at Amazon UK. Prices were last checked in September 2026 and change often, so confirm on the retailer's page before buying.