Best all-round WELOCK smart lock. Choose U81 for the most complete feature set, including multiple access methods, temporary passcodes, and mechanical key backup.
Buy WELOCK U81
Best for flexible installation. Choose U71 when its removable exterior knob provides a better installation fit. It combines multiple local access methods with a mechanical backup key.
Buy WELOCK U71
Choose Touca51 Pro when you need temporary passcodes for guests, cleaners, visitors, or rental stays without handing over a physical key.
Buy ToucA51 ProCompare WELOCK smart lock cylinders and find the right model for your home, apartment, rental property, or small office. WiFiBox3 is sold separately and is required for remote unlocking and supported smart home integration. Normal local access works without Wi-Fi.
| Products | ||
|---|---|---|
| Current Sale Price | ||
| Euro-Profile Cylinder Compatible | ||
| Standard Cylinder Configuration | ||
| Adjustable Cylinder Length | ||
| Bluetooth Access | ||
| Fingerprint Access | ||
| PIN Code Access | ||
| Temporary Passcodes | ||
| WELOCK App Access | ||
| Remote Unlocking via WiFiBox3 | ||
| Amazon Alexa via WiFiBox3 | ||
| Home Assistant via WiFiBox3 | ||
| RFID Smart Card | ||
| USB-C Emergency Power | ||
| Mechanical key | ||
| Battery Life | ||
| Waterproof |
Confirm that your door uses a compatible Euro-profile cylinder. Compare the cylinder dimensions, door thickness, and backset.
Decide whether you need temporary passcodes, a mechanical backup key, USB-C emergency power or a removable exterior knob.
Choose U81 as the most feature-rich all-round option, U71 for its removable exterior knob, Touca51 Pro for temporary guest access, or Touca51 for everyday keyless entry.
WELOCK U81 is the most feature-rich all-round model among the main options. It combines fingerprint, PIN, temporary passcodes, RFID card, Bluetooth, WELOCK app and mechanical-key access.
It is also designed for compatible Euro-profile doors with backsets from 25 mm.
U81 supports temporary passcodes and is designed for compatible doors with backsets from 25 mm. U71 has a removable exterior knob but does not support temporary passcodes. Both models include a mechanical backup key.
U81 is better suited to narrow door backsets and includes a mechanical backup key. Touca51 Pro is designed for guest and rental access and uses USB-C emergency power instead of a mechanical backup key.
WELOCK U71 and Touca51 do not support temporary passcodes. The other models shown in the comparison support temporary passcode functions, although the available code types may vary.
No. Normal local access works without a constant Wi-Fi connection. WiFiBox3 is only required for supported remote unlocking and smart home integration.
WELOCK Touca51 Pro and U81 are the clearest choice when temporary access for guests, cleaners, or short-term rental stays is the main requirement.
