Aqara Smart Lock U300
Last updated May 2026

Aqara Smart Lock U300

3.7
363 ratings
Launch Year: 2024

Model: U300

$189.99
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At a glance

Summary

Everything this door lock supports, grouped by category.

Size & Materials
Weather Resistance (IPX4)Outer Panel Dimensions (140 x 76 x 73.5 mm)Inner Panel Dimensions (159 x 74.5 x 76 mm)2290g / 80.8ozAvailable in colors
Power
Backup Battery (USB-C Emergency Port)
Connectivity
BluetoothThread Protocol (Thread Border Router required)
Integrations
Google Home (Aqara Hub required)Alexa (Aqara Hub required)Apple HomeKitSamsung SmartThings (Aqara Hub required)Home AssistantIFTTT (Aqara Hub required)Matter
Lock/Unlock System
RemoteBluetoothPasscodeFingerprintNFC TagApple Home KeyPhysical Key
Automatic Lock / Unlock
Afer Door is closed
Alerts
Door Locks/UnlocksLow Battery Alert
Features
One-Time PasswordPeriodic Password

Price History

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Company

BrandAqara
Headquarters
China flagChina
Full specifications

Every spec, organized

Browse the full breakdown by category. Tap the on any row for what it means, or the for sources and documentation.

Size & Materials

Weather Resistance

IPX4

Outer panel rated IPX4 and operates down to -22°F (-30°C)

Outer Panel Dimensions

140 x 76 x 73.5 mm

Inner Panel Dimensions

159 x 74.5 x 76 mm

Weight

2290g / 80.8oz

Available in colors

YES

Black, Silver

Power

Battery Type

4x AA

Battery Life

10 months

Assuming the door is unlocked via fingerprints 10 times a day.

Backup Battery

USB-C Emergency Port

Connectivity

2.4 GHz WiFi

NO

5 GHz WiFi

NO

Bluetooth

YES

Z-Wave

NO

Zigbee

NO

Thread Protocol

Thread Border Router required

Other

YES

NFC

Integrations

Google Home

Aqara Hub required

Alexa

Aqara Hub required

Apple HomeKit

YES

Samsung SmartThings

Aqara Hub required

Home Assistant

YES

IFTTT

Aqara Hub required

Matter

YES

Lock/Unlock System

Remote

YES

Aqara Hub / Thread Border Router required for remote access

Bluetooth

YES

Passcode

YES

Touchscreen keypad, up to 75 PIN codes

Fingerprint

YES

Ergonomic fingerprint reader, stores up to 50 fingerprints

Face Recognition

NO

NFC Tag

YES

Up to 10 NFC records (NFC cards sold separately)

Apple Home Key

YES

Tap to unlock with iPhone or Apple Watch, even without power

Physical Key

YES

Automatic Lock / Unlock

When Away

NO

Afer Door is closed

YES

By Geolocation

?

Alerts

Door Locks/Unlocks

YES

Tamper-proof Alert

?

Low Battery Alert

YES

Multiple Unlocking Failure Alert

?

Video

HD Video

NO

2K Video

NO

Night Vision

NO

Internal Storage

NO

MicroSD Card Slot

NO

Motion Detection

NO

Range Of Detection

-

Customizable Area

NO

Sensors

Door Open/Close

?

Features

One-Time Password

YES

Periodic Password

YES

Anti-peep Password

?

Emergency Fingerprint

NO

Doorbell

NO

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