United Kingdom edition · Dwellwise Picks
Aqara UWB Smart Lock U400: UK buying and compatibility guide
Quick answer for UK buyers
Aqara UWB Smart Lock U400
Current price & availability · purchase link
A research-based buying guide to Aqara's UWB deadbolt, with the controller, phone, door-fit, battery, and regional-version checks that determine whether its hands-free entry features make sense. This UK edition adds exact regional model, compatibility, seller, delivery, warranty and return checks.
Updated July 16, 2026
Quick answer for UK buyers
The U400 is the stronger Aqara choice for a compatible Apple-centered home that specifically values approach-based UWB unlocking. Buyers who mainly want fingerprint, keypad, or Apple Home Key access can spend less on the U100. For United Kingdom, verify the exact regional offer separately rather than assuming the US model or bundle is identical.
Use the main research and country edition together
The original page remains the evidence base for the practical decision. This edition adds the model and checkout details that can differ in United Kingdom.
Match the exact UK model
A shared product name can hide different model numbers, wireless bands, plugs, power supplies, dimensions, materials, bundles or app features. Compare the selected UK offer with current manufacturer documentation.
Check the complete landed offer
Confirm GBP price, seller, delivery, included hardware, regional warranty, return handling and current availability. The main risk from the research is: Advanced ecosystem features require compatible controllers and phones
Checks before buying in the UK
Confirm the regional model and the complete UK checkout offer rather than assuming a US listing is identical.
- Exact UK model and configuration
- Power, plug, radio, dimensions or regional compatibility
- GBP price, seller, delivery and included pieces
- Regional warranty, returns and current availability
Product and source evidence
The product identity and editorial evidence come from the main research page; regional availability remains a checkout check.
- Product
- Aqara UWB Smart Lock U400
- ASIN
- B0FRS6T6HL
- Country edition
- United Kingdom
- Currency to compare
- GBP
- Amazon routing
- Earn Globally / OneLink from the verified US Associates link
- Evidence mode
- Official specification