Aqara Smart Lock U300

I have the Aqara U300 in Home Assistant and I don't have a M3 Hub. Instead I'm using a Google Nest Wifi router as my Thread Border Router. In HA you get lock, unlock, status, and battery info in HA. I've had some minor issues with it though. One time I hadn't controlled it in a week and it looked like I had to wake it up first in order to use it. A few other times it took two tries to lock or unlock it. But for the most part it works pretty good and I would recommend it.

Excerpt saved from the Arctic Shift Reddit archive on 2026-10-23.

I have had a few different smart locks. I needed a latch, not a deadbolt, so my options were kinda limited. I tried the Lockly version and honestly it was garbage. It was slow to unlock, and while I got it to work in HA it wasn't great. I switched to the Aqara u300 which I didn't have high hopes for it, but it turned out to be amazing. I love it. It integrates nicely into HA (via Homekit) and its fast. The one thing I wish was able to do is expose the biometric unlocking to HA which as of now cannot be done. I used some other ways to figure out who unlocked it so its not a show stopper, but …

Excerpt saved from the Arctic Shift Reddit archive on 2026-10-23.

I use a U300 for about a year and a half now. It works great thru Apple TV bridged to HA. I have home app Auto Unlock trigger in HA when we arrive home and it’s always been reliable. I rarely have to use the fingerprint. Battery life is great and is silent.

Excerpt saved from the Arctic Shift Reddit archive on 2026-10-23.

I'm going to go against the grain and not recommend these locks. I have 4 of them and every so often the key pad will go completely unresponsive until it's unlocked using home assistant. Custom service is amazing as they will replace them no questions asked but even my replacements have this issue.

Excerpt saved from the Arctic Shift Reddit archive on 2026-10-23.

Devices | Device | Model | Protocol | Notes | | --- | --- | --- | --- | | Aqara Smart Lock U400 | `aqara.matter.4447_10244` | Matter over Thread | front door (UWB / Apple Home Key) | | Aqara Smart Lock U300 | `aqara.matter.4447_10241` | Matter over Thread | second entry door | Both are Matter-class models and follow exactly the same naming pattern as the already-supported U200 (`aqara.matter.4447_10242`) and U200 Lite (`aqara.matter.4447_10247`). ### What the Aqara cloud already returns for them `query.device.info` (Aqara Open API v3) lists both locks in my account with an empty `parentDid` …

Excerpt saved from GitHub on 2026-10-23.

… reliability, performance etc. 1. N100 NAS Proxmox - HAOS on VM 2. Wifi Environment - Unifi Gateway Fiber, Switch Lite 8 PoE, U7 Pro, U7 Lite, no VLan 3. Aqara M3 Hub - Will be my main Zigbee and Thread Router 4. Door Lock - Aqara U300 5. Cameras - Reolink RLC 1240A, RLC 520A, no NVR, ftp recording to NAS 6. Doorbell - Reolink POE Black 7. Sensors - 6 Apollo MSR-2, 8 Aqara door sensors, 10 switches will be zigbee or matter, couple of switch relays, couple of vibration sensors, one aqara FP2, couple of smart plugs with enery monitor potentially zigbee, 4 smart blinds, couple of led strips with …

Excerpt saved from the Arctic Shift Reddit archive on 2026-10-23.

How did you add them to HA? I cant add ecobee thermostats or my locks (schlage encode plus and Aqara u300). It looked like I had to unpair to add.

Excerpt saved from the Arctic Shift Reddit archive on 2026-10-23.