Aqara Smart Lock U400
Smart lock with UWB approach unlock, Matter support, Thread, Apple Home integration, and NFC.
Brand
AqaraReference Price
Check official retail links
Pricing varies by region; check the official product page for current availability.
Consumer Electronics Details
Product type
Smart lock
Core feature
UWB approach unlock with smart-home platform support
Compatibility
Matter, Thread, Apple Home, and NFC support; confirm regional device and hub requirements
Key Facts
Access
UWB approach unlock positioning
Smart-home support
Matter support with Thread positioning
Apple ecosystem
Apple Home integration
Backup access
NFC support
Product Overview
Aqara Smart Lock U400 is built around no-touch entry, using UWB approach unlock while keeping Matter, Thread, Apple Home, and NFC in the smart-home stack.
What Stands Out
It puts UWB approach unlock at the center instead of treating the phone as only an app remote.
Why It Matters
Smart-home access is moving from manual codes and app taps toward presence-aware door control.
Best For
Smart-home users who want hands-free entry and already understand platform setup.
Not For
Doors that do not fit the lock hardware, households without backup access planning, or users who want a simple offline deadbolt.
Things to Know
Confirm door fit, compatible devices, hub needs, backup access, battery routines, and guest permissions before going further.
Smart-lock reliability depends on installation, supported phones or watches, household rules, and emergency backup access.
Platform support can vary by region and smart-home ecosystem.
Sources
Aqara product page
aqara.com
Covers
U400 identity, UWB unlock positioning, Matter, Thread, Apple Home, NFC, and product imagery.
Aqara support
aqara.com
Covers
Owner-support context for setup, compatibility, and smart-home troubleshooting.
Connectivity Standards Alliance Matter context
csa-iot.org
Covers
Matter ecosystem context for smart-home compatibility expectations.
Similar Products
Explore related products
Consumer Electronics
SwitchBot Lock Vision Pro
Reference
$229.99
A retrofit biometric smart lock with face, palm-vein, fingerprint, and Matter over Wi-Fi.
Consumer Electronics
Tapo DL130
Reference
Check official retail links
A palm-access Wi-Fi smart deadbolt with fingerprint, keypad, local biometric storage, and IP65 weatherproofing.
Consumer Electronics
SwitchBot Lock Ultra
Reference
$249.99
A retrofit smart lock built around broad compatibility, fast unlock, and hub-based Matter support.