← Smart locks
August
August Wi-Fi Smart Lock (4th Gen)
- Cloud integration
- Cloud required
- Wi-Fi
- Bluetooth
Prices verified November 2026
See more smart locks picks on our Amazon storefront →Our verdict
An American-style deadbolt retrofit lock, so it only suits UK doors with a compatible thumb-turn deadbolt, not standard British mortice or euro-cylinder locks. At about £317 from third-party sellers it is poor value against Yale, Nuki or Aqara options built for UK doors. Read the compatibility section of our review before buying.
What can Home Assistant control on the August Wi-Fi Smart Lock (4th Gen)?
| Control | Type | What it does |
|---|---|---|
| Lock | Lock | Lock and unlock the deadbolt |
| Door state | Binary sensor | Open or closed via DoorSense where supported |
| Battery | Sensor (%) | Battery level |
Home Assistant's August integration signs in with your August account and talks to the cloud, so it needs internet and the lock does not work through a local API. It exposes the lock state and lock/unlock control, plus door state if DoorSense is fitted. Treat it as cloud-dependent.
Specs
| fits | US-style deadbolt thumb-turn |
|---|---|
| connectivity | Wi-Fi and Bluetooth |
How does the August Wi-Fi Smart Lock (4th Gen) compare?
| Product | From | Protocol | Local control | Integration |
|---|---|---|---|---|
| August Wi-Fi Smart Lock (4th Gen) (this product) | £317.39 | Wi-Fi, Bluetooth | Cloud | Cloud |
| Aqara Smart Lock U200 | £169.99 | Thread, Matter, Bluetooth | Yes | Native |
| Aqara Smart Lock U200 Lite | £105.99 | Thread, Matter, Bluetooth | Yes | Native |
| Aqara Smart Rim Lock U500 | £279.98 | Matter, Thread, Bluetooth | Yes | Native |
Frequently asked questions
- Does the August Wi-Fi Smart Lock (4th Gen) work with Home Assistant locally?
- Partly. The August Wi-Fi Smart Lock (4th Gen) connects to Home Assistant through the manufacturer's cloud integration (August), which relies on the August cloud. It works in Home Assistant, but commands go via the internet and stop working during an outage of your connection or the August service.
- Which protocol does the August Wi-Fi Smart Lock (4th Gen) use, and do I need a hub?
- The August Wi-Fi Smart Lock (4th Gen) uses Wi-Fi and Bluetooth. To pair it with Home Assistant you need no hub — it joins your Wi-Fi network directly; or a Bluetooth adapter on your Home Assistant host or an ESPHome Bluetooth proxy. August's own hub is not required when you integrate through the manufacturer's cloud integration (August).
- How much does the August Wi-Fi Smart Lock (4th Gen) cost in the UK?
- The lowest price we have listed for the August Wi-Fi Smart Lock (4th Gen) is £317.39 at Amazon UK. Prices were last checked in November 2026 and change often, so confirm on the retailer's page before buying.
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August
August Wi-Fi Smart Lock (4th Gen)
£317.39 at Amazon UK