I tested Apple’s hands-free Home Key — and it’s a big upgrade

The U400 ($269.99) is the first to support Apple’s Home Key’s hands-free unlocking. This uses the U1 ultra-wideband (UWB) ...

The Aqara Smart Lock U400 Detects When You Get Home, and Unlocks Itself—Hands-Free

This Aqara smart lock knows when you've arrived at your door and unlocks itself using UWB technology. This is the future of ...