Keys are Obsolete - Aqara Smart Lock U400
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Thanks to Aqara for sponsoring this video! You can
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check out the Aqara Smart Lock U400 at: Amazon: bit.ly Best Buy: bit.ly Learn more at the Aqara Forum: forum.aqara.com Have you ever wanted to live in a world where the only thing you need to get in your house is your phone? Well now you can! The Aqara Smart Lock U400 is a sweet door lock that uses UWB technology to unlock your door when you get near it. If you don't have your phone, you can still use a standard key, pin code, or finger print too. Want us to unbox something? Make a suggestion at lmg.gg ► GET MERCH: lttstore.com ► GET A VPN: piavpn.com ► GET EXCLUSIVE CONTENT ON FLOATPLANE: lmg.gg ► SPONSORS, AFFILIATES, AND PARTNERS: lmg.gg Purchases made through some store links may provide some compensation to Linus Media Group. Affiliate links powered in part by affilimate.com Studio lighting by Aputure: aputure.com Linus Sebastian is an investor in Framework Computer, Inc and HexOS by Eshtek. CHAPTERS --------------------------------------------------- 0:00 Intro 0:36 Unboxing 1:35 Installation 4:05 Pairing to the app 4:35 Testing it out 6:19 Outro
The video presents the Aqara Smart Lock U400, highlighted as a keyless future where your phone suffices to unlock your door, with fallback options like a keypad, fingerprint, or physical key. The host walks through unboxing, installation, and initial pairing with the Aqara Home app, noting that setup is designed to be straightforward and that a QR code guides the process. A notable design feature is the battery system: the lock ships with a rechargeable battery that can be charged in place via USB-C, or the battery itself can be swapped; there is also a USB-C port for external charging if the battery dies while you’re locked out. The device uses Ultra Wide Band (UWB) to unlock when the user approaches, coupling directional sensing with precise distance measurement to distinguish proximity and prevent accidental unlocks, which the host contrasts with traditional Bluetooth locks. The host also emphasizes installation considerations, including a mounting adapter and potential door modifications, and demonstrates the Apple Home integration, including calibration and testing of the proximity unlock. Throughout, the video explains why UWB can offer better security than Bluetooth by using time-of-flight and encryption techniques to reduce the risk of relay attacks. In closing, the host notes voice-control compatibility with Matter and smart assistants, and praises the lock's convenience while acknowledging practical considerations like charging frequency and installation nuances. The overall takeaway is that the Aqara U400 aims to simplify entry by relying on a smartphone-based, proximity-triggered experience without sacrificing traditional access options, while also highlighting setup realities and the value proposition of near-field unlocking.
Topics · technology · home automation · smart home
Questions answered
- What unlocking methods does the Aqara Smart Lock U400 support besides a smartphone proximity unlock?
- Besides proximity unlock via UWB, the Aqara Smart Lock U400 supports a traditional physical key, a keypad entry, and fingerprint authentication.
- How does UWB improve security compared to Bluetooth for door unlocking?
- UWB uses time-of-flight distance measurement and directional sensing to determine proximity and orientation, making it harder to relay or spoof signals compared to Bluetooth, which typically has lower precision and is more vulnerable to certain attacks.
- What are the main installation considerations or potential challenges when using the U400?
- Installation may require mounting hardware and possible door modifications, including using an adapter plate. Some users may need specialized tools for battery access and ensuring proper alignment of the latch and strike, while the door may need to accommodate the mounting hardware without extensive modifications.