Product family

Aqara Smart Lock U100, U200 and U300

Three Aqara locks that share Apple Home Key and fingerprint unlock but reach Home Assistant by different roads. The U100 is Zigbee and goes through an Aqara hub's Matter bridge; the U200 and U300 are Matter over Thread and talk to Home Assistant directly.

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The 3 side by side

Every column is read from the product's own notes page. Discontinued members sit last.

Aqara Smart Lock U100, U200 and U300 compared: protocols, thread, hub needed, setup, price band, price and where to buy.
Product	Protocols	Thread	Hub needed	Setup	Price band	Price	Where to buy
Aqara Smart Lock U100 U100, Zigbee, Apple Home Key	Zigbee, Bluetooth, NFC, Matter	no	yes	moderate	mid	$134.99verified Sep 7, 2026	Check price at Amazon ↗ *
Aqara Smart Lock U200 U200, Matter over Thread, retrofit deadbolt	Matter, Thread, Bluetooth	yes	no	moderate	premium	$169.99verified Sep 7, 2026	Check price at Amazon ↗ *
Aqara Smart Lock U300 U300, Matter over Thread, full door replacement Owned and reviewed	Matter, Thread, Bluetooth	yes	no	hard	premium	$199.99verified Aug 30, 2026	Check price at Amazon ↗ *

Which one to buy

For a Home Assistant house I'd go U200: Matter over Thread means lock and unlock work locally with no hub, and it keeps Home Key.

The U300 is the same radio and the same Home Key in a full door replacement that swaps deadbolt and handle in one unit, so it's the pick for a new build or anyone ready to replace the whole lock set.

The U100 makes sense in an Apple household that already runs an Aqara hub, since its Zigbee path into Home Assistant runs through that hub's Matter bridge; on the U200 and U300, fingerprint enrollment lives in the Aqara app and the fingerprint sensor isn't exposed to Home Assistant.

I own and have tested Aqara Smart Lock U300 (3.5/5). I haven't run the others, so those picks are based on the spec sheet and what other Home Assistant users report.

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