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Door Locks · Head to head

Aqara Smart Lock U400 vs Yale Assure Lock 2 with Wi-Fi

Full Smart Door Locks comparison in 2026

Updated October 2026
Data from Amazon and official Aqara and Yale sites.
2026 verdict
Aqara Smart Lock U400 edges out Yale Assure Lock 2 with Wi-Fi in 2026, led by rating, connectivity, and integrations.
Aqara Smart Lock U400
Winner
Aqara Smart Lock U400
$269.99
Buy on Amazon USA
It separates itself most clearly on rating, connectivity, and integrations, while still looking better on Lock/Unlock system. The only strong reason to choose Yale Assure Lock 2 with Wi-Fi is if price is more important to you than the overall verdict. For the average buyer, Aqara Smart Lock U400 is the safer choice.
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FeatureAqara Smart Lock U400Yale Assure Lock 2 with Wi-FiWinner
Price$269.99$197.00Yale Assure Lock 2 with Wi-Fi
Rating4.13.7Aqara Smart Lock U400
ConnectivityBluetooth, Thread Protocol, Other2.4 GHz WiFi, BluetoothAqara Smart Lock U400
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Apple HomeKitAqara Smart Lock U400
Lock/Unlock SystemRemote, Bluetooth, Passcode, Fingerprint, NFC Tag, Apple Home Key, Physical KeyRemote, Bluetooth, Passcode, Physical KeyAqara Smart Lock U400
Emergency FingerprintNONOTie
DoorbellNONOTie
Winner
Aqara

Aqara Smart Lock U400

Prime exclusive deal
$269.99
Buy on Amazon USA
  • + Rating: 4.1
  • + Connectivity: Bluetooth, Thread Protocol, Other
  • + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • - Price: $269.99 vs $197.00

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Aqara Smart Lock U400
  • Yale Assure Lock 2 with Wi-Fi

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Frequently Asked Questions

Which is better overall: Aqara Smart Lock U400 or Yale Assure Lock 2 with Wi-Fi?

Aqara Smart Lock U400 has the stronger overall profile in this comparison, especially for rating, connectivity, and integrations.

What is the biggest difference between Aqara Smart Lock U400 and Yale Assure Lock 2 with Wi-Fi?

Price is one of the clearest differences: Aqara Smart Lock U400 lists $269.99, while Yale Assure Lock 2 with Wi-Fi lists $197.00.

Which one looks better on price?

Aqara Smart Lock U400 is listed at $269.99, while Yale Assure Lock 2 with Wi-Fi is listed at $197.00. Yale Assure Lock 2 with Wi-Fi (better spec).

Who should buy Aqara Smart Lock U400?

Choose Aqara Smart Lock U400 if your priority is rating and connectivity and that matters more than price.

Who should buy Yale Assure Lock 2 with Wi-Fi?

Choose Yale Assure Lock 2 with Wi-Fi if your priority is price and that matters more than rating.

Full comparison table

Compare all 48 Door Locks side by side

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  • 48 Door Locks
  • 55 specs compared
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