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Aqara Smart Lock U300 is now available with Apple Home Key, Matter, and Thread support

Aqara has officially announced the release of its latest innovation in home security: the Smart Lock U300. This new smart lever lock is the third in Aqara’s lineup to support Apple Home Key. It also includes support for Thread and Matter, so it works perfectly across all smart home ecosystems. Read on to learn more about the Aqara U300 and how to save 20% off.

HomeKit Weekly is a series focused on smart home accessories, automation tips and tricks, and everything to do with Apple’s smart home framework.


The Aqara U300 is designed to retrofit traditional single-bore doors fitted with either a lever or a knob. From side and garage doors to home offices, basements, and storage rooms, the U300 brings Apple Home Key access control and smart lock support to more home areas.

From a technology standpoint, it checks all the boxes, including support for Apple Home Key, HomeKit, Thread, and Matter. This future-proof capability ensures your smart lock will remain compatible with whatever smart home ecosystem you pick, but it especially works great if you use HomeKit.

Aqara U300

Aqara U300 specs

  • Model: DL-D02D
  • Wireless Protocols: Thread, Bluetooth, NFC 
  • Dimensions: 
  • Outer Panel: 140 × 76 × 73.5 mm (5.5 × 2.99 × 2.89 in.)
  • Inner Panel: 159 × 74.5 × 76 mm (6.25 × 2.93 × 2.99 in.)
  • Operating Temperature: 
  • Outer Panel: -22°F~131°F
  • Inner Panel: 14°F~131°F
  • Operating Humidity: 0 ~ 93% RH, no condensation 
  • Powering Modes: 4 AA Batteries (6V); USB-C Emergency Port (5V) 
  • IP Rating: IPX4 (Outer Panel)
  • What is in the Box: Smart Lock U300 × 1, User Manual ×  1, Installation Diagram × 1, AA Battery × 4, Mechanical Key × 2, Accessories Kit × 1, Backplate × 1

Key features

Access options

The Aqara Smart Lock U300 supports a variety of keyless entry options. iPhone and Apple Watch users can enjoy seamless entry via Apple Home Key. The lock includes an ergonomic fingerprint reader, personalized PIN codes (including one-time and recurring codes), Aqara mobile app access, voice assistants, and Aqara NFC cards. Traditional mechanical keys are also provided for emergency situations like power outages.

Weather resistant design

Designed for indoor and outdoor use, the Aqara U300 Smart Lock is built to withstand harsh weather conditions. Rated IPX4, the lock is water-resistant and operates effectively in temperatures ranging from -22 °F to 131 °F.

Auto lock and passive mode

The Aqara U300 features an auto-lock function that locks doors behind the user. For occasions requiring frequent access, such as during house parties, moving furniture, or in commercial spaces, the Passage Mode can be activated locally or through the Aqara app, allowing unrestricted entry and exit without compromising security.

Matter and Thread

The Aqara U300 is built on top of the Thread communication protocol, and it offers quick and reliable connections while consuming less power. The U300 also supports Matter, meaning the lock will integrate smoothly with various smart home platforms, including HomeKit, Google Assistant, Amazon Alexa, and Samsung Smart Things. With Thread technology, users can enjoy up to 10 months of battery life before needing a replacement.

Wrap up on Aqara U300

Aqara’s Smart Lock U300 is a great addition to the lineup. By including Home Key, Thread, and Matter compatibility with a great design for both indoor and outdoor use, Aqara has a great option for a smart door lock. Even outside of Home Key, it includes great features like fingerprint support, manual key unlock, and more.

You can buy the Aqara U300 from Amazon and use code PRNAU300 for 20% off through 10/7.

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