CraveHub Score27
Specs
- Connectivity
- Matter, Thread, Apple Home Key
- Unlock Methods
- Multiple (UWB, app, key, etc.)
- HomeKit Support
- Yes
- Primary Feature
- UWB-enabled auto-unlock
HomeMay 5, 2026
Aqara Smart Lock U400 Review: Future-Proof Home Access Control
Summary
The Aqara Smart Lock U400 is the first HomeKit-compatible smart lock with ultra-wideband (UWB) technology, enabling automatic unlock as you approach your door. It supports multiple unlock methods and integrates with major home automation platforms via Matter and Thread, though a Thread-enabled Matter controller is required for full compatibility.
Pros
- ✓First HomeKit lock with UWB support for hands-free automatic unlock as you approach
- ✓Auto-locks and unlocks at appropriate times for convenience and security
- ✓Multi-platform compatibility via Matter protocol
Cons
- ✕Requires Thread-enabled Matter controller for full functionality
- ✕Design noted as the lock's weakest aspect
- ✕Other unlock methods still require active user action