Smart Lock U400 Kit
Key features
- Hands-free unlock with Ultra Wideband. Approach with a UWB-enabled iPhone or Apple Watch and the door unlocks instantly, no tapping, swiping or codes required. UWB gives precise, private detection for truly hands-free entry. UWB hands-free unlocking requires a compatible iPhone or Apple Watch and a Thread-enabled Apple home hub.
- Advanced fingerprint reader. A 160×160 pixel sensor unlocks in 0.3 seconds with up to 98.6% accuracy and a false acceptance rate below 0.0001%, and stores up to 50 fingerprints with on-device AES encryption.
- Future-proof Matter over Thread. Works with Apple Home, Google Home, Amazon Alexa, Samsung SmartThings and other Matter platforms, with more devices supported as the Aliro digital key standard rolls out.
- NFC and Apple Home Key. Tap to unlock with Apple Home Key in Apple Wallet, which works even when the iPhone is powered off on supported models, plus remote key sharing and time-limited guest codes.
- More ways to get in. A keypad with anti-peep protection, offline one-time or scheduled guest codes, an NFC card, Siri or Alexa, preset automations, or the backup physical key with re-key support.
- Long-lasting power with USB-C backup. A rechargeable 4880 mAh battery lasts up to 6 months per charge, with low-battery alerts at 20 percent and USB-C emergency power from a power bank or phone.
- Weatherproof and BHMA Grade 3. The IP65-rated outer panel resists dust and heavy rain, and BHMA Grade 3 certification provides trusted everyday security.
- Smart locking and automations. A built-in gyroscope auto-locks the door when it closes, Do Not Disturb mode quiets prompts, and unlocking can trigger lights, air conditioning or the Video Doorbell G410.
- Includes the Hub M100. The kit's Hub M100 pairs as an Aqara Matter Controller, enabling remote lock and unlock, periodic passwords, battery checks and Matter pairing codes from Aqara Home.
Specifications
What's in the box
- Smart Lock U400 × 1, Hub M100 × 1
- Rechargeable Li-ion Battery × 1, Key × 2
- User Manual × 1, Installation Diagram × 1
- Accessories Kit × 1, Bolt and Screw Kit × 1, Mounting Plate × 1
Installation and warranty
- Professional installation at your home by Keyvo, included with every purchase.
- Full setup of the app, fingerprints and codes before we leave.
- Local warranty support, serviced in Singapore.
Walk up. It just opens.
Approach with a UWB-enabled iPhone or Apple Watch and the door unlocks instantly, no tapping, swiping or codes required. UWB gives precise, private detection for truly hands-free entry.
UWB hands-free unlocking requires a compatible iPhone or Apple Watch and a Thread-enabled Apple home hub.
Six months a charge, USB-C for backup.
A rechargeable 4880 mAh battery lasts up to 6 months per charge, with low-battery alerts at 20 percent and USB-C emergency power from a power bank or any phone that supports USB-C to USB-C charging.
Ready for Apple Home, Google Home, and more.
Powered by Matter over Thread, the U400 works with Apple Home, Google Home, Amazon Alexa and Samsung SmartThings for stable, reliable performance across ecosystems.
More from Aqara
Ready for the U400?
Send us a photo of your door on WhatsApp and we'll confirm fit, quote with installation, and book a time.