Door Locks · Head to head

Aqara Smart Lock U100 vs Aqara Smart Lock U300

Full Smart Door Locks comparison in 2026

Updated November 2026
Data from the official Aqara site.
2026 verdict
Across the 2026 comparison, Aqara Smart Lock U100 earns the nod over Aqara Smart Lock U300 on the strength of price, rating, and weather resistance.
Aqara Smart Lock U100
Winner
Aqara Smart Lock U100
$149.99
Buy on Amazon USA
Its clearest strengths are price, rating, and weather resistance, and it still looks stronger on its broader overall balance. Choose Aqara Smart Lock U300 only if battery life and connectivity matter more to you than the broader advantage from Aqara Smart Lock U100. That keeps the verdict firmly in favor of Aqara Smart Lock U100.
Works with
Connectivity
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Works with
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FeatureAqara Smart Lock U100Aqara Smart Lock U300Winner
Price$149.99$199.99Aqara Smart Lock U100
Rating4.13.9Aqara Smart Lock U100
Weather ResistanceIP65IPX4Aqara Smart Lock U100
Battery Life8 months10 monthsAqara Smart Lock U300
ConnectivityBluetooth, ZigbeeBluetooth, Thread Protocol, OtherAqara Smart Lock U300
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterTie
Lock/Unlock SystemRemote, Bluetooth, Passcode, Fingerprint, NFC Tag, Apple Home Key, Physical KeyRemote, Bluetooth, Passcode, Fingerprint, NFC Tag, Apple Home Key, Physical KeyTie
One-Time PasswordYESYESTie
Periodic PasswordYESYESTie
Anti-peep PasswordYESYESTie
Emergency FingerprintNONOTie
DoorbellNONOTie
Winner
Aqara

Aqara Smart Lock U100

Prime exclusive deal
$149.99
Buy on Amazon USA
  • + Price: $149.99
  • + Rating: 4.1
  • + Weather Resistance: IP65
  • - Battery Life: 8 months vs 10 months
  • - Connectivity: Bluetooth, Zigbee vs Bluetooth, Thread Protocol, Other

Frequently Asked Questions

Which is better overall: Aqara Smart Lock U100 or Aqara Smart Lock U300?

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

What is the biggest difference between Aqara Smart Lock U100 and Aqara Smart Lock U300?

Price is one of the clearest differences: Aqara Smart Lock U100 lists $149.99, while Aqara Smart Lock U300 lists $199.99.

Which one looks better on price?

Aqara Smart Lock U100 is listed at $149.99, while Aqara Smart Lock U300 is listed at $199.99. Aqara Smart Lock U100 (better spec).

Who should buy Aqara Smart Lock U100?

Choose Aqara Smart Lock U100 if your priority is price and rating and that matters more than battery life.

Who should buy Aqara Smart Lock U300?

Choose Aqara Smart Lock U300 if your priority is battery life and connectivity and that matters more than price.

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Full comparison table

Compare all 59 Door Locks side by side

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  • 56 specs compared
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