Uploaded January 2026 | Updated September 2026, 2 weeks ago

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Thanks to Aqara for sponsoring this video! You can check out the Aqara Smart Lock U400 at:

Amazon: bit.ly/49J6SvU
Best Buy: bit.ly/3ZAeBGu
Learn more at the Aqara Forum: forum.aqara.com/?utm_source=kol

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.

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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
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0:00 Intro
0:36 Unboxing
1:35 Installation
4:05 Pairing to the app
4:35 Testing it out
6:19 Outro