Aqara UWB Smart Lock U400, Matter Over Thread, Apple Home Key, Fingerprint Keyless Entry Deadbolt,Touchscreen Keypad, Rechargeable Battery, Supports HomeKit, Alexa, Google, Home Assistant, Black

Troublesome binding to hubs
Going to try again tomorrow but right now, it’s pretty useless.Initial setup seemed promising and it updated firmware after the battery charged a bit (it arrived below 20%) but then immediately lost binding with the Aqara hub and went no response in HomeKit. I reset all the Matter stuff and can’t seem to do anything with it. Bluetooth only stays connected for a few seconds before disconnecting, too. I don’t think the initial calibration worked properly either because the knob sits at about 45 degrees when it’s fully locked and the door open/close indicator is incorrect more often than not. The battery % and charging status wasn’t synchronized between Aqara app and Apple Home. No idea if UWB works because I couldn’t get to those settings before everything went wonky.I am going to reset the lock and try adding directly to Apple Home first and see if that works any better and will update my review based on those results. Aqara really needs to fix their sub-par Matter controllers.UPDATE:Added a star back because I was finally able to get it bound to Apple Home (after about 10 resets and pairing attempts) and connectivity has been solid for a couple days. UWB unlock on approach operates as expected. Calibration is still wonky where the motor doesn’t extend the deadbolt as far as it can go, leaving the toggle switch just shy of horizontal. Manually turning the lock allows me to close it all the way. This is making me hesitant to put this thing on my main door. I’ve also noticed that my phone maintains a persistent bluetooth connection with the lock when I’m in the house. My understanding is this connection is a requirement for the UWB features, but I’m wondering if this will cause excessive battery drain over time. Battery percentage and active charging status does not update on the Apple Home accessory page with any amount of reliability so any notifications about low battery will likely arrive when its far too late. Getting really tired of this new technology cycle of feeling like a beta tester for products that I’ve paid full price for.

The first UWB lock!
I had high hopes for this based on all of the online videos and reviews on here so far. Install for me went smooth. Added to Apple Home no problem. However, at least so far the UWB unlocking is very inconsistent. Sometimes it works immediately as i’m walking up, sometimes I have to stand there for a few seconds, and sometimes it never unlocks. This contradicts every other review i’ve seen so far that says it’s ultra reliable so I’m hoping it’s just an early firmware issue or something that i’m experiencing. Holding out hope until the return period end is closer.

The product arrived and looks great and I’m sure it will function just fine. But if you don’t have a door with a recessed portion for a T-Style deadbolt you’re screwed. As you can see in my pictures I have a drive in deadbolt style which is fairly common. The T-plate is not removable on the deadbolt from Aqara unlike many other manufacturers who send out locks, not sure why they went this route. It looks like there is a solution for the U100 (not sure if it also works with the U400, but I’m assuming it will) you can buy this from Amazon: “The Design House 783332 Pro Deadbolt“ and it should work. I’m gonna order this because I really want the UWB feature in a smart lock and I guess I am this far in… would be great if the company made it so there deadbolt was convertible like other brands.