Overview
- Aqara launched the U400 at CES 2026 with immediate availability through Aqara, Amazon, Best Buy and select Apple Stores at a $269.99 price.
- Hands-on tests report reliable automatic unlocking within a foot or two of the door, with angle-of-arrival settings to prevent unintended unlocks.
- UWB Unlock on Approach requires an iPhone 11 or later (excluding iPhone SE and iPhone 16e) on iOS 18.5+ or an Apple Watch Series 6 or later on watchOS 11.5+, plus Express Mode enabled.
- As a Matter-over-Thread device, the lock needs a Thread border router for full Home app features and also supports codes, fingerprint, NFC tap-to-unlock and a mechanical key.
- The lock includes an IP65-rated exterior, a removable 4,880 mAh USB-C rechargeable battery rated up to six months, Aliro readiness for broader platform support this year and, according to Aqara, planned Samsung Wallet support later in Q1 2026.