Aqara U400 review: HomeKit’s futuristic smart lock has arrived

9to5Mac
By Chance MillerApr 20, 2026, 1:46 pm199 ptsTrending
I bought my first house earlier this year, so being the nerd that I am, I’ve prioritized turning the house into a smart home. First on the list was a smart lock. I knew I wanted something with the best possible HomeKit integration, and the Aqara UWB Smart Lock U400 seemed to fit that bill on paper. So far,…

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