# Aqara Smart Lock U300

*Aqara*

> The Aqara Smart Lock U300 is a Thread lever lock with native Matter. It has a fingerprint reader in the handle, a touchscreen keypad and 4 AA batteries. Home Key needs an Apple Thread border router and Matter controller. It suits HomeKit and Home Assistant users, with native support through Matter over Thread.

- Canonical page: https://smarthomecanon.com/devices/aqara-smart-lock-u300
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [Aqara](https://smarthomecanon.com/brands/aqara) |
| Category | Lock |
| Status | Current[^1] |
| Lock family | Thread locks (native Matter)[^2] |
| Radio | Thread, Bluetooth, NFC[^2] |
| Hub needed | Aqara 2-in-1 Thread border router and Matter controller for Aqara app features. Apple 2-in-1 for Home Key.[^2] |
| Matter path | withheld |
| HomeKit and Home Key | HomeKit through Matter, with Home Key. Home Key needs an Apple Thread border router and Matter controller.[^2] |
| Unlock methods | Fingerprint in the handle (up to 25), touchscreen keypad, NFC[^2] |
| Power | 4 AA (6 V), up to 10 months. USB-C emergency power.[^2] |
| Released | 2024-10-20[^1] |
| Aliro | unknown |
| Matter certification part number | withheld |

## Integration paths

**How the Aqara Smart Lock U300 connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Matter / Thread](https://smarthomecanon.com/protocols/matter-thread) | Thread border router, Matter controller[^2] | unknown | unknown |

**Platform support for the Aqara Smart Lock U300**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Matter / Thread | [HomeKit](https://smarthomecanon.com/platforms/homekit) | Native[^2] |  |
| Matter / Thread | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | withheld |  |

## Releases

**Aqara Smart Lock U300 release events**

| Date | Event | Detail |
| --- | --- | --- |
| 2024-10-20[^1] | Released |  |

## Related pages

- [Aqara smart locks](https://smarthomecanon.com/lines/aqara-locks) (line)
- [Aqara](https://smarthomecanon.com/brands/aqara) (brand)
- [Matter over Thread](https://smarthomecanon.com/protocols/matter-thread) (protocol)
- [HomeKit](https://smarthomecanon.com/platforms/homekit) (platform)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)

## Sources

[^1]: Aqara US store catalog (Shopify product feed). https://us.aqara.com/products.json?limit=250 (manufacturer, checked 2026-10-08)
[^2]: Smart Lock U300 - Aqara US store. https://us.aqara.com/products/smart-lock-u300 (manufacturer, checked 2026-10-08)