Rank #5 in Best Smart Lock 2026: Ten Door Locks Ranked on Security First
WELOCK U81 Smart Door Lock,6-in-1 Fingerprint Biometric Lock with App Control, RFID Card and Keypad Entry for 50-95mm British Doors, Weatherproof Security Lock
Price and rating as shown on Amazon when we collected them. Both change.
The WELOCK U81 is our number five smart lock pick for September 2026 and the best documented handle replacement for British PVC doors. It fits 50 to 95 mm doors and unlocks six ways, with weatherproofed biometrics rated from minus 25 to 60 degrees. The listing records 85 ratings at 4.6.
Everything on this page comes from the Amazon listing rather than our own testing.
How those 85 ratings break down
An average hides its own shape. This is the spread behind the 4.6 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Fit | 50-95 mm doors, no drilling |
|---|---|
| Entry | Fingerprint, code, RFID, app, key, Alexa |
| Weather | Minus 25 to 60 degrees |
| Security | Anti snooping, 3 minute lockout after 5 errors |
| Auto lock | 5-14 second delay, customisable |
| Remote | Needs separately sold WELOCK WiFiBOX3 |
| ASIN | B0FH621318 |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“I was initially sceptical about adopting smart lock technology for a property near my home, but I needn't have been as the new lock is working brilliantly. Prior to purchase I asked numerous questions all of which were expertly and very helpfully answered by the professional WeLock team.”
Verified purchase“Delighted with my WeLock! It looks great, it can handle the British weather and is of strong quality. There are so many ways to use it (finger print, code, actual key) and it works nicely with the app. It took a bit of playing with the door/lock and we got there in the end! Technical support by email was excellent! I've already bought a second one and plan to buy a third one soon.”
What it is up against
The rivals it was ranked against in Best Smart Lock 2026: Ten Door Locks Ranked on Security First.
Rank #1
Nuki Smart Lock Ultra (Euro Profile) Electronic Door Lock with Bluetooth, WiFi & Matter, for Easy Integration in smart Home, Unlock Door remotely, with 3 Different Locking speeds, Stainless Steel
£309.00
Rank #2
SwitchBot WiFi Smart Lock Ultra with Keypad Vision Pro, 3D Face & Palm Vein Recognition, Contactless Unlock, Fits Euro Profile Cylinder, Supports Matter, Alexa, Google, IFTTT
£242.06
Rank #3
Tapo Smart Wi-Fi Door Lock, Deadbolt, Fingerprint Recognition, DL110
£140.84
Rank #4
SwitchBot WiFi Smart Lock Ultra with Keypad Vision, 3D Face Recognition, Fingerprint Door Lock, Smart Door Lock, Fits Your Existing Euro Profile Cylinder, Supports Matter, Alexa, Google, IFTTT
£299.99
Questions people ask
Which doors does it fit?
PVC, wooden and narrow frame doors 50-95 mm thick.
How many ways can I unlock it?
Six: fingerprint, passcode, RFID card, app, mechanical key and Alexa.
Is it weatherproof?
Yes, rated for UK weather from minus 25 to 60 degrees.
Does it need drilling?
No, the listing says installation needs no drilling or cables.
Can I use it remotely?
Only with the separately sold WELOCK WiFiBOX3 gateway.
What is the rating?
4.6 across 85 reviews.
Comments
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