Smart Door Lock

The WELOCK U81 Smart Lock is designed to offer simple, secure and genuinely useful keyless entry for real homes, families and rental properties across the UK. As a smart Euro-cylinder replacement, it supports fingerprint unlocking, PIN codes, RFID cards and Bluetooth App access, with a mechanical key included for emergencies. Installation takes only a few minutes and requires no drilling or locksmith. With its IP65 weather protection, long battery life and optional smart home features, the U81 presents a practical upgrade for those seeking modern convenience without overcomplication.

A Familiar, Minimal Design Built for Real Homes

Also maintains the trusted Euro-cylinder form factor, allowing it to blend naturally with UK and EU doors rather than looking like a bulky gadget mounted on top. Its brushed metal finish feels solid in hand, and the hardware avoids exposed electronics or fragile plastic. Inside the box, WELOCK includes the smart cylinder, interior and exterior knobs, RFID access cards, two traditional keys, a user manual and screw accessories. The setup is straightforward and beginner-friendly, even for users installing a smart lock for the first time.

With an IP65 weather-resistant build, the lock is engineered to withstand rain, colder temperatures and dust, an important consideration for front doors exposed to unpredictable British weather.

Smart Door Lock

Throughout testing and demonstration, the lock felt durable and well-constructed, consistent with what users expect from a premium WELOCK smart lock.

Keyless Entry Methods Designed for Everyday Use

It offers several unlocking options suited to families, landlords and short-term rental hosts. The fingerprint sensor performed consistently well, recognising registered prints quickly and with few retries an important strength for a welockfingerprintdoorlock intended for everyday household use.

The illuminated keypad supports standard PINs as well as temporary codes, which work well for visitors, cleaners or guests. RFID cards provide simple access for children or older adults who prefer a physical token. Through the Bluetooth App, users can unlock the door, review activity logs and manage settings, while the interface remains intuitive rather than cluttered.

For added reassurance, the U81 still includes a mechanical backup key, maintaining access during rare emergencies such as drained batteries.

Demonstration-Based Installation: Simple and Beginner-Friendly

Due to building restrictions, the evaluation was conducted through a demonstration rather than a permanent installation. However, handling the hardware made the process clear. The WELOCK U81 replaces a standard Euro cylinder using the existing door screw, meaning:

  • No drilling
  • No cutting
  • No specialist tools
  • No locksmith required

Demonstration steps included removing a sample cylinder, inserting the U81, securing it with the original screw, adjusting the knobs to fit the door thickness, and registering fingerprints, cards and app access. The process appeared quick and highly accessible, even for beginners unfamiliar with DIY smart lock installations. The U81 also fits door thickness ranging from 60mm to 115mm, covering most residential doors in the UK.

Smart Door Lock

With the optional WiFi bridge, the U81 supports Alexa and Home Assistant, allowing remote lock checks and simple automations. Full compatibility details remain available on the product page for users who prefer reviewing technical specs.

Pricing, Offer and Warranty

Readers purchasing through the WELOCK IBTimes page can secure the U81 for a final price of €199 using coupon code VD50.
Additional purchase details include:

  • Free shipping from European & UK warehouses (ships within 24 hours)
  • 2-Year Warranty
  • Lifetime Customer Support
  • Free 30-Day Return

Verdict: A Practical and User-Friendly Upgrade

The WELOCK U81 stands out not only for its feature list, but for how cohesively those features work together in everyday use. Each access method performs reliably, the build quality feels robust and the installation process is highly approachable. For households, families or rental properties seeking a trusted shift to keyless access, the U81 delivers a clear, straightforward experience.