Smart Door Lock U300

Product Info

Description

The Aqara Smart Lock U300 is the first Matter-compatible lever-set lock, designed for a wide range of doors. With its sleek, durable design and robust build, it delivers both style and security.

Enjoy seamless access with multiple unlocking options: fingerprint recognition in just 0.3 seconds, Apple Home Key via iPhone or Apple Watch, NFC cards, keypad PINs, Bluetooth, and even a backup mechanical key. A USB-C emergency charging port ensures you’re never locked out.

Powered by Thread for fast, reliable connectivity, the U300 integrates effortlessly with leading smart home ecosystems. With up to 10 months’ battery life, auto-lock, passage mode, and Do-Not-Disturb, it adapts perfectly to your lifestyle while enhancing security and convenience.

Upgrade your home with smarter, faster, and safer access.

Key Features

• Matter over Thread Support: The U300 is the first lever lock to support both Matter and Apple Home Key. It connects seamlessly with Apple Home and other major platforms, while also integrating with Aqara devices via the Aqara Hub M3. With up to 10 months’ battery life on a single set of replaceable batteries, the U300 delivers customisable, energy-efficient, and highly secure smart access.
• NFC & Apple Home Keys: Unlock with a simple tap from your iPhone or Apple Watch—even when your device is out of power. The U300 also supports secure NFC cards that cannot be copied, offering both flexibility and peace of mind. Powered by Apple Matter and Thread technologies, it provides secure, convenient, and power-independent access, making it a smart yet affordable security upgrade.
• Ergonomic Fingerprint Reader: The U300’s fingerprint sensor is built directly into the handle, allowing instant unlocking in just 0.3 seconds with a natural grip. It supports up to 50 fingerprints—perfect for families or offices—and uses a 160×160 semiconductor sensor with an exceptionally low False Acceptance Rate (Under 0.0001%). This ensures fast, accurate, and secure access every time.
• Multiple Unlocking Options: Enjoy flexible entry options with the U300: fingerprint, PIN codes, NFC cards, touchscreen keypad, Bluetooth, mechanical keys, and even emergency USB-C power for peace of mind. Easy to install and activate using buttons or voice prompts, it also features AES encryption and anti-peep PIN protection, keeping your data and entry secure.
• Focus on Security & Durability: Built to withstand all seasons, the U300 works reliably in harsh weather conditions, including rain and temperatures as low as -22°F. With an IPX4 rating, motor-driven anti-force design, and high-quality materials like tempered glass with an anti-fingerprint coating, it offers durability and year-round security indoors and outdoors.
• Effortless Passage Mode: Switch easily between Passage Mode (always unlocked) and Auto-Lock Mode, perfect for busy commercial spaces, shared entrances, or garages. Designed for glove-friendly access, the local-only passage feature with voice-prompted setup makes it practical and secure for any setting.
• Exclusive Features with the Aqara Home App: Pair the U300 with the Aqara Home app to unlock its full potential. Manage multiple unlocking methods, set up temporary guest passwords (even offline), and enable advanced automation when connected to the Aqara Matter Controller. Compatible with both left- and right-handed doors, the U300 offers flexibility, reliability, and smarter control for modern homes.

Note:
* Assumption of unlocking the door with fingerprints 10 times per day.
** Requires a 2-in-1 Apple Matter Controller and Thread Border Router to achieve tap to unlock with Apple home keys.
*** NFC cards need to be purchased separately.
**** Fingerprint can be configured locally on the lock itself by single pressing the Set button if there's no Admin's password, or following the voice prompts if available. And the access data is stored locally and is fully encrypted using the AES algorithm.
***** Anti-peep pin code protection is also supported for safety. Any digits can be input before and after the actual code.
****** IP and temperature rating refers to the outer panel of the lock.
******* For optimal performance outdoors, we recommend installing the lock under a protective cover or shield.
******** Passage Mode can be enabled or disabled directly on the lock; however, for safety concerns, it cannot be activated remotely via the mobile app — only deactivated.

Specifications

Automations and Complementary Products

Click a product image to go to its page details

Scene: One-Tap Welcome

Answer the door in seconds. When someone rings your Video Doorbell G4, you’ll get an instant alert and live video on your phone. See who’s there and unlock the Smart Lock U300 remotely with just one tap – secure, simple, and smart.

Required Automation Products:

Smart Lock U300

Hub M3

Doorbell Camera Hub G410

Automation Setup

IF (Condition) – Video Doorbell G4 detects a ring // THEN (Action): Send live video alert to your phone AND unlock Smart Lock U300 with one tap // Execution Rule: Triggered instantly whenever the doorbell rings

Scene: Peace of Mind on Holiday

Enjoy stress-free holidays knowing your home is protected. If there are repeated failed attempts on your U300 Smart Lock and a Door & Window Sensor is triggered, the system instantly records with Camera E1 and sends you real-time alerts. Stay in control, wherever you are. Requires an Aqara 2-in-1 Thread Border Router and Matter Controller.

Required Automation Products:

Smart Lock U300

Hub M3

Camera E1

Door & Window Sensor T1

Automation Setup

IF (Condition) – U300 detects repeated failed unlock attempts AND Door & Window Sensor is opened // THEN (Action): Camera E1 starts recording AND sends instant push notifications // Execution Rule: Dual-condition trigger ensures alerts are sent only during suspicious activity

Scene: Smart Energy Saver

Leave home worry-free. Once the U300 is locked and no motion is detected, Aqara switches off your lights automatically. Save energy, cut costs, and never second-guess whether you left the lights on again. Requires an Aqara 2-in-1 Thread Border Router and Matter Controller.

Required Automation Products:

Smart Lock U300

Hub M3

LED Light Strip T1

LED Light Bulb T2

Ceiling Light T1M

Automation Setup

IF (Condition) – U300 is locked AND no motion detected for a set period // THEN (Action): Turn off lights, LED strip, ceiling light, and radiator thermostats // Execution Rule: Triggered automatically when you leave or lock the door

Product Support Documents

• Step by step installation instruction video:
  Installation Video (00:02:35)
• Product User Manual:
  User Manual (PDF)
• Product FAQs:
  Frequently Asked Questions (PDF)