Editorial profile

Aqara

Brand background: China
Product areas: Smart door locks · Access management

Reviewed 2026-10-28

Models · 1

Aqara U400: UWB approach unlocking, Thread connectivity and panel dimensions

U400 combines UWB proximity recognition and Matter over Thread connectivity in a smart door lock; supported devices and home-hub configuration need separate checks. This article records both panel dimensions, charging interfaces and operating conditions to help assess installation and ecosystem requirements.

Official sources

Aqara · aqara.cn · 1
Aqara · www.aqara.com · 2

Compiled from public sources. Inclusion does not indicate an official listing or partnership. Country refers to brand history or company location, not manufacturing origin or sales coverage.