Just posted on Six Colors: Aqara UWB Smart Lock U400 Review: Beam Me Up

https://sixcolors.com/post/2026/03/aqara-uwb-smart-lock-u400-review-beam-me-up/

Aqara UWB Smart Lock U400 Review: Beam Me Up

When it comes to smart locks, the goal is “Star Trek,” right? You should be able to walk up to your door and, swish!, it opens to greet you. When I was a kid, “Star Trek” do…

Six Colors
@jsnell I took a chance on that lock after hearing you pick it on MBW - more than double what I’d ever spent on a smart lock before.
Would do so again without giving it a second thought. It’s that good.
@jsnell wish they had this in Europe. Had to settle for U200, but tapping the lock with the watch isn’t that bad.
@jsnell Since I set up the cheapest Home-compatible smart outlet I could find on Amazon (like $12?) to turn on whenever "last person leaves the house” and daisy-chaining that to the Aqara to auto-lock when it sees the switch turn on, it's been flawless about locking automagically when we've both left.
Also, pretty sure I was able to setup fingerprints just using the voice prompts from the lock itself (i.e., without having to install the app).