Aqara Smart Lock U400

Ever feel like your hands are always too full to grab your keys? Meet the brand-new Aqara U400. Thanks to UWB (Ultra-Wideband) technology, this lock knows when I’m approaching and unlocks the deadbolt automatically—no tapping, no fingerprinting, just magic. Why the U400 is a game-changer: True Hands-Free: Unlocks on approach via iPhone or Apple Watch. UWB Precision: It knows if you're inside or outside so it won't unlock by accident. Matter over Thread: Future-proof and works with every major smart home hub. Rechargeable Battery: No more hunting for AAs! Is this the best smart lock of 2026? Let me know in the comments! 👇 ★ Amazon: https://www.amazon.com/dp/B0FRS6T6HL?maas=maas_adg_BFE14275BC926C4A03F5A143D8CD99F3_afap_abs&ref_=aa_maas&tag=maas ★ Aqara website: https://us.aqara.com/products/smart-lock-u400?utm_source=U400&utm_medium=KOL&utm_campaign=Shane ★ Bestbuy: https://www.bestbuy.com/product/~/JJ8RHCJ2S9/sku/6667505 #AqaraU400 #SmartHome #AppleHomeKey #TechReview #HomeAutomation #SmartLock ★My Affiliate links: ---► https://amzn.to/3NsPT8g ★★My Youtube Gear - Things I use for video production★★ ---► https://www.amazon.com/shop/influencer-ee2cab59 My Social medias: https://www.facebook.com/brainstechknowlogy https://www.twitch.tv/brianrets https://www.instagram.com/brianretuts https://www.pinterest.ph/brianrets https://twitter.com/BrainstechKnow #BrainstechKnowlogy #aqarau400 #aqara #aqarasmartlock Disclaimers: This Video Contains Affiliate link which means when you click on the link and buy something on Amazon.com, Gearbest.com and banggood.com I earn from qualifying purchases.