Aqara LLC reviews
4.3 from 6 ratings
Store star ratings run high (most products average above 4.3), so they count less than written reviews.
Smart Lock U400
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Smart Lock U400
Est. tax $19.68 for 43215 (Ohio average) · Shipping set by Aqara LLC at checkout
Color: Black
| Dimensions | Inner panel 178.76 x 46.9 mm, Outer panel 167.76 x 25.5 mm |
|---|---|
| Battery | 4800 mAh rechargeable lithium-ion, USB-C charging |
| Certifications | IP65, BHMA Grade 3 |
| Operating Humidity | 0–93% RH (non-condensing) |
| Operating Temperature | 18°C to 55°C (0.4°F to 131°F) |
| Wireless Protocols | Bluetooth 5.2, Thread, UWB, NFC |
What these specs mean
- IP rating
- Dust and water resistance. IPX4 handles sweat and splashes; IP67 and IP68 survive a dunk.
About this item
- First Apple UWB smart lock with Matter over Thread compatibility and true hands-free unlocking via iPhone or Apple Watch.
- Ultra Wideband UWB unlocking: Enables automatic, hands-free entry as you approach the door for maximum convenience and security
- Advanced fingerprint reader: Delivers fast, secure, and accurate access with up to 98.6% accuracy and ultra-low false acceptance rate
- Multi-ecosystem compatibility: Works seamlessly with Apple Home, Google Home, Amazon Alexa, Samsung SmartThings, and more via Matter over Thread
- Rechargeable, removable battery: Provides up to 6 months of use per charge and low battery alerts for reliable operation
- IP65 weatherproof and BHMA certified: Ensures dust, water, and mechanical protection for dependable outdoor performance
How it scores
Mixed · likely 4.1 to 7.9 · low confidence
From 6 store ratings.
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Product description
True Hands-Free Unlocking with UWB Technology: Experience a new era of smart access — UWB (Ultra-Wideband) detects your incoming presence, direction, and intent to unlock automatically as you approach. It provides a faster, more convenient, and highly secure way to enter your home without touching the lock. Perfect when your hands are full, you're wearing gloves, or arriving in the rain. (Note: UWB unlocking requires a Thread-enabled Apple Home hub and is supported on Apple Watch Series 6 or later (excluding SE) running watchOS 11.5+ and iPhone 11 or later (excluding iPhone SE & iPhone 16e) running iOS 18.5+.) All-in-One Unlocking Options: Enjoy Apple home key tap-to-unlock (requires an Apple Thread-enabled Matter controller: HomePod 2nd Gen, HomePod mini, or Apple TV 4K 2021/2022), plus fingerprint, touchscreen passcode, voice assistant control, app remote access, NFC card support (card sold separately), and a physical key, giving you flexible, reliable ways to enter your home in any situation. Matter Over Thread for Multi-Ecosystem Compatibility: Built with Matter over Thread, the U400 can connect to multiple smart home platforms simultaneously, allowing you to enjoy the unique
From the seller’s listing.