CES 2026: Aqara Launches U400 Smart Lock With HomeKit and Hands-Free UWB Unlocking

MacRumors
By Juli CloverJan 6, 2026, 9:00 am187 pts
Smart home company Aqara today debuted its latest smart lock, the U400. The Aqara Smart Lock U400 incorporates ultra wideband (UWB) technology for more precise location-based tracking and automated door unlocking. There are few UWB smart locks on the market, but the technology uses the UWB chip in the iPhone…

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