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There are fewer UWB astute locks connected the market, but the exertion uses the UWB spot successful the iPhone to unlock the doorway close arsenic you approach. There is nary request to pat an ‌iPhone‌ connected the fastener with UWB, truthful the doorway tin beryllium unlocked wholly hands-free. We were capable to trial the fastener up of its instauration astatine CES, and the UWB exertion worked arsenic advertised.
Walking up to the U400 with ‌iPhone‌ tucked successful a pouch triggered the fastener to unlock, but lone wrong a ft oregon 2 of the door. It's delicate capable that Aqara added a customization enactment to let the U400 lone to unlock erstwhile approached from a acceptable space of arrival, specified arsenic left, right, oregon center. Setting a circumstantial absorption tin debar accidental unlocks erstwhile you're adjacent the door, and UWB is delicate capable to cognize what broadside of the doorway a idiosyncratic is on.
The U400 works with the Apple Home Key feature, truthful it tin besides beryllium unlocked via a paper stored successful the Wallet app. Home Key tin beryllium customized to unlock a doorway by holding your ‌iPhone‌ oregon Apple Watch adjacent the lock, but UWB simplifies the process further and makes it much precise. There is nary request for a PIN, tap, oregon authentication with the U400, and the ‌iPhone‌ oregon Apple Watch doesn't request to beryllium explicitly tapped connected the lock.
Like anterior Aqara locks, the U400 offers a wide scope of options for access. It supports unlocking with a fingerprint done a fingerprint sensor, NFC, an included key, oregon an entree codification with the included keypad. One-time and time-specific codes tin beryllium fixed to guests, and the fastener tin beryllium acceptable to fastener automatically aft user-specified play of time. Since the fastener tin beryllium unlocked automatically if you're adjacent it, turning connected the auto-lock ensures that it doesn't enactment unlocked if it's activated accidentally.
If you privation to permission a doorway unlocked for a play of clip oregon permanently, determination is simply a dedicated Passage mode that tin beryllium set.
Since it is Matter and Thread enabled, the U400 tin beryllium connected to HomeKit and accessed done the Home app. It tin beryllium utilized successful automations alongside different astute location devices, and the fastener tin beryllium controlled with Siri dependable commands. It besides works with the Aqara app, and tin beryllium connected to an Aqara hub. Since it supports Matter, an Aqara hub is not required for afloat functionality, but a Thread Border Router and Matter hub are needed. The Apple TV 4K and HomePod mini enactment arsenic location hubs for the Apple ecosystem.
Aqara says the U400 supports Aliro, truthful it is capable to beryllium unlocked with a smartphone careless of operating system. It is besides much unafraid than Bluetooth, due to the fact that it uses time-of-flight signals alternatively of simply awesome spot for unlocking, truthful determination is nary enactment for a relay attack.
The U400 is powered by a 4,880 mAh artillery that tin beryllium removed from the fastener and charged via USB-C, and it is expected to past for up to six months per charge. Several Aqara locks utilized replaceable batteries, truthful the rechargeable artillery is simply a bully upgrade. Exterior components person IP65 h2o and particulate absorption for outdoor use.
Aqara is offering the U400 successful Silver and Black. It is designed to regenerate a modular deadbolt, and it includes each of the indispensable hardware for a swap.
More accusation connected the U400 tin beryllium found connected Aqara's website.
This article, "CES 2026: Aqara Launches U400 Smart Lock With HomeKit and Hands-Free UWB Unlocking" archetypal appeared connected MacRumors.com
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