Aqara Smart Lock U100

Quick verdict

If Apple Home Key is your thing, the U100 delivers it in a surprisingly capable package. It is a Zigbee lock (no Thread), and its proprietary encryption blocks ZHA/Zigbee2MQTT, so Home Assistant access runs through an Aqara hub's Matter bridge. Workable for HA users, but it shines brightest in Apple households.

Standout: Strong Apple Home Key appeal in a lock that still has better local-first potential than many cheap cloud locks.

Notes last checked May 31, 2026.

Compatibility snapshot

Why it stands out

• excellent Apple Home integration with Home Key support for NFC tap-to-unlock
• multiple unlock methods - fingerprint, keypad, Apple Home Key, and physical key
• better local-control potential via the Aqara hub's Matter bridge than many mainstream cloud-heavy locks

Reasons to hesitate

• best experience requires an Aqara hub or Apple Home setup - not a standalone smart lock
• Home Assistant support is more of a compatibility path than the product's core strength
• Aqara ecosystem means firmware updates and advanced features are tied to their app

Best for

• Apple Home households that still care about practical local behavior
• buyers who want Home Key convenience without jumping to the most cloud-heavy lock options

Avoid if

• you want a pure Home Assistant-native lock strategy
• you do not want to think about bridge and ecosystem dependencies

Privacy and local-control notes

Can behave reasonably well in local-friendly ecosystem setups, but Aqara still brings more vendor-ecosystem caveats than the most local-purist gear on this site.

Home Assistant support: supported · integration path: Matter (via Aqara hub Matter bridge); Aqara's proprietary Zigbee lock encryption is not supported by ZHA or Zigbee2MQTT.

Buying reality check

Price notes: Often competitive for the feature set, but the real value depends on whether you already want the Aqara or Apple ecosystem path.

Compare side by side: see lock comparisons →

Local smart home security setup from scratch

A practical guide to building a local-first smart home security system with Home Assistant, focusing on real hardware choices and avoiding cloud dependencies.