Door Locks · Head to head

Aqara Smart Lock U100 vs Eufy Smart Lock C33

Full Smart Door Locks comparison in 2026

Updated November 2026
Data from the official Aqara and Eufy sites.
2026 verdict
Aqara Smart Lock U100 has the better all-around case than Eufy Smart Lock C33 in 2026, starting with weather resistance, connectivity, and integrations.
Aqara Smart Lock U100
Winner
Aqara Smart Lock U100
$149.99
Buy on Amazon USA
Its strongest advantages show up in weather resistance, connectivity, and integrations, with Lock/Unlock system helping widen the gap. Eufy Smart Lock C33 is still relevant if you care most about price and warranty, but Aqara Smart Lock U100 is the stronger recommendation overall. That is why the final call still favors Aqara Smart Lock U100.
Works with
Connectivity
vs
Works with
Connectivity
  • Wi-Fi 2.4 GHz
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FeatureAqara Smart Lock U100Eufy Smart Lock C33Winner
Price$149.99$129.99Eufy Smart Lock C33
Warranty1 year1.5 yearsEufy Smart Lock C33
Weather ResistanceIP65IP53Aqara Smart Lock U100
ConnectivityBluetooth, Zigbee2.4 GHz WiFiAqara Smart Lock U100
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Home AssistantAqara Smart Lock U100
Lock/Unlock SystemRemote, Bluetooth, Passcode, Fingerprint, NFC Tag, Apple Home Key, Physical KeyRemote, Passcode, Fingerprint, Physical KeyAqara Smart Lock U100
Rating4.14.1Tie
Battery Life8 months8 monthsTie
One-Time PasswordYESYESTie
Periodic PasswordYESYESTie
Anti-peep PasswordYESYESTie
Emergency FingerprintNONOTie
Winner
Aqara

Aqara Smart Lock U100

Prime exclusive deal
$149.99
Buy on Amazon USA
  • + Weather Resistance: IP65
  • + Connectivity: Bluetooth, Zigbee
  • + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • - Price: $149.99 vs $129.99
  • - Warranty: 1 year vs 1.5 years
Eufy

Eufy Smart Lock C33

24% OFF
Prime exclusive deal
$129.99
$169.99
Buy on Amazon USA
  • + Price: $129.99
  • + Warranty: 1.5 years
  • - Weather Resistance: IP53 vs IP65
  • - Connectivity: 2.4 GHz WiFi vs Bluetooth, Zigbee

Frequently Asked Questions

Which is better overall: Aqara Smart Lock U100 or Eufy Smart Lock C33?

Aqara Smart Lock U100 has the stronger overall profile in this comparison, especially for weather resistance, connectivity, and integrations.

What is the biggest difference between Aqara Smart Lock U100 and Eufy Smart Lock C33?

Price is one of the clearest differences: Aqara Smart Lock U100 lists $149.99, while Eufy Smart Lock C33 lists $129.99.

Which one looks better on price?

Aqara Smart Lock U100 is listed at $149.99, while Eufy Smart Lock C33 is listed at $129.99. Eufy Smart Lock C33 (better spec).

Who should buy Aqara Smart Lock U100?

Choose Aqara Smart Lock U100 if your priority is weather resistance and connectivity and that matters more than price.

Who should buy Eufy Smart Lock C33?

Choose Eufy Smart Lock C33 if your priority is price and warranty and that matters more than weather resistance.

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