Hands-Free Home: Stephen Robles Tests the Aqara U400 UWB Smart Lock

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Fumbling for keys is so 2024. The Aqara U400 hears your phone coming and opens the door — no tap, no key, no excuse.

https://www.youtube.com/watch?v=XUjUXt4l2cQ

Why Stephen Robles Calls It HomeKit's Future Lock

• $269.99 — debuted at CES 2026, now shipping in the US, Canada, Australia, New Zealand, and Singapore

• First smart lock with Ultra Wideband Apple Home Key — auto-unlocks as you approach the door

• Matter over Thread — works with Apple Home, Alexa, Google Home, and Home Assistant

• Rechargeable Li-ion battery — up to 6 months per charge, USB-C emergency port

• IP65 weatherproof with fingerprint, keypad, NFC card, and a physical key backup

Want hands-free entry that actually works in Colorado weather? Hinton Technology installs and tunes smart locks in Aurora — let's talk.

Sources

MacRumors — https://www.macrumors.com/2026/01/06/aqara-u400-smart-lock/

Aqara CES 2026 Press Release — https://www.aqara.com/en/news/aqara-introduces-uwb-powered-smart-lock-u400-at-ces-2026/

AppleInsider — https://appleinsider.com/articles/26/02/13/aqara-u400-review-uwb-home-key-will-be-hard-to-beat-on-other-smart-locks

9to5Mac — https://9to5mac.com/2026/04/20/aqara-u400-review-homekits-futuristic-smart-lock-has-arrived/

Tom's Guide — https://www.tomsguide.com/home/home-security/aqara-u400-review