Aqara Smart Lock U300 (US) vs August Wi-Fi Smart Lock Gen 4 (US)

Smart locks · For the US and Canada

Side by side

FactAqara Smart Lock U300 (US)August Wi-Fi Smart Lock Gen 4 (US)
MatterYes, over Thread[2]Unconfirmed
Apple HomeVia Matter[1],[2]Yes[1],[2]
Google HomeVia Matter[1],[2]Yes[1],[3]
Amazon AlexaVia Matter[1],[2]Yes[1],[3]
SmartThingsVia Matter[1],[2]Unconfirmed
Home AssistantUnconfirmedYes[5]
RadioThread, Bluetooth[1],[2]Wi-Fi, Bluetooth[1],[2]
Hub requiredUnconfirmedNo[1],[2]
Local controlUnconfirmedUnconfirmed
FitLever handle[1],[2]Retrofit (keeps keys)[1],[4]
KeypadYes[1]No[1]
PowerUnconfirmed2 × CR123A[2]

A bar on the left marks the rows where they differ. Numbers in brackets lead to the source on each device's own page, which also has the notes and what to check before you buy. Checked against official sources; the older of the two records was verified on . How we verify.

Quick answers

Aqara Smart Lock U300 (US) or August Wi-Fi Smart Lock Gen 4 (US): which works with Apple Home?
Both. The Aqara Smart Lock U300 (US) works through Matter over Thread (needs a Thread border router); the August Wi-Fi Smart Lock Gen 4 (US) works directly. More smart locks for Apple Home
Aqara Smart Lock U300 (US) or August Wi-Fi Smart Lock Gen 4 (US): which works with Google Home?
Both. The Aqara Smart Lock U300 (US) works through Matter over Thread (needs a Thread border router); the August Wi-Fi Smart Lock Gen 4 (US) works directly. More smart locks for Google Home
Aqara Smart Lock U300 (US) or August Wi-Fi Smart Lock Gen 4 (US): which works with Amazon Alexa?
Both. The Aqara Smart Lock U300 (US) works through Matter over Thread (needs a Thread border router); the August Wi-Fi Smart Lock Gen 4 (US) works directly. More smart locks for Amazon Alexa
Aqara Smart Lock U300 (US) or August Wi-Fi Smart Lock Gen 4 (US): which works with SmartThings?
Confirmed only for the Aqara Smart Lock U300 (US). The Aqara Smart Lock U300 (US) works through Matter over Thread (needs a Thread border router); the August Wi-Fi Smart Lock Gen 4 (US) isn't confirmed either way. More smart locks for SmartThings
Aqara Smart Lock U300 (US) or August Wi-Fi Smart Lock Gen 4 (US): which works with Home Assistant?
Confirmed only for the August Wi-Fi Smart Lock Gen 4 (US). The Aqara Smart Lock U300 (US) isn't confirmed either way; the August Wi-Fi Smart Lock Gen 4 (US) works directly. More smart locks for Home Assistant

Full details and sources: Aqara Smart Lock U300 (US) · August Wi-Fi Smart Lock Gen 4 (US)

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