A New Era of Smart Home Security
In 2025, home security is more than just about locking doors — it’s about intelligent protection that fits your lifestyle.
The WELOCK Smart Lock U81 represents the next generation of connected door locks, combining premium security, elegant design, and user-friendly control.
Crafted with precision and modern aesthetics, the U81 offers keyless entry, fingerprint access, and app-based control for maximum convenience.
You can manage your home’s access directly from your smartphone using the WELOCK app, monitor entry logs, and even share temporary digital keys with guests or family members.
The WELOCK Smart Lock U81 is also compatible with Alexa and Home Assistant — but these smart integrations require the WIFIBOX3 accessory for proper operation.
Once connected, users can lock, unlock, and check door status through voice commands or remotely from anywhere.
Stylish, secure, and practical — the U81 is designed to bring both safety and sophistication to your front door.
Built for Real Homes: Compatibility and Easy Installation
Before buying a smart lock, many users ask the same question: Will it fit my door?
The WELOCK Smart Lock U81 is built for universal compatibility with most European standard doors, using a Euro-profile cylinder (60-115 mm).
This means you can replace your existing mechanical cylinder without drilling or wiring.
Installation takes only a few minutes using basic tools — no professional help required.
The lock body is constructed from high-strength aluminum alloy, making it durable and weather-resistant for both indoor and outdoor use.
Whether you live in an apartment, townhouse, or single-family home, the U81 adapts to your setup effortlessly.
The built-in reversible handle design ensures it works for both left-handed and right-handed doors, a thoughtful detail often overlooked in smart locks.
For homeowners, renters, and Airbnb hosts, the WELOCK Smart Lock U81 offers a perfect balance between modern security and easy adaptability.
Advanced Access Options for Modern Living
The WELOCK Smart Lock U81 offers multiple ways to unlock your door — each tailored to your comfort and security needs.
You can choose from:
- Fingerprint recognition for instant access (in less than a second)
- Smartphone control via Bluetooth or Wi-Fi (with the WIFIBOX3)
- RFID cards for family members or guests
- Emergency mechanical key, ensuring access even in rare technical failures
Each method works seamlessly, with advanced AES encryption to keep your data secure.
Even without an internet connection, the U81 continues to operate reliably in offline mode.
Through the WELOCK app, users can create time-limited digital keys — perfect for deliveries, cleaning services, or short-term rentals.
You can also review detailed access logs, so you’ll always know who entered and when.
This combination of flexibility and security makes the WELOCK Smart Lock U81 ideal for busy modern households.
Power You Can Rely On: Battery and Backup Features
Battery life is often a top concern with smart locks, but the WELOCK Smart Lock U81 is designed for endurance.
It runs on four AAA batteries, providing up to 8,000 unlocks or about one year of typical use.
When power gets low, you’ll receive notifications through the WELOCK app and an indicator light on the lock itself.
Additionally, the mechanical emergency key provides an extra layer of security, ensuring you’re never locked out — even if electronics fail.
This thoughtful redundancy proves that WELOCK prioritizes user reliability as much as innovation.
Smart Integrations with WIFIBOX3
The WELOCK Smart Lock U81 can work independently via Bluetooth, but pairing it with the WIFIBOX3 unlocks advanced smart home features.
With this accessory, the lock connects securely to Wi-Fi, enabling full integration with:
- Amazon Alexa — voice-controlled locking and unlocking
- Home Assistant — for advanced home automation setups
It’s important to note that these features require the WIFIBOX3 connection to function properly.
This ensures encrypted, real-time control and compatibility with broader smart home ecosystems.
Whether you want to check if your door is locked from your phone or tell Alexa to unlock for a guest, the WELOCK Smart Lock U81 paired with WIFIBOX3 makes it effortless.
Exclusive Offer for 2025: Save Up to €60
There’s never been a better time to upgrade your home security.
For a limited time, WELOCK is offering the U81 Smart Lock with a €60 discount using coupon VD60 — bringing the final price to just €189.
Each purchase ships directly from the European warehouse and includes a 2-year warranty for complete peace of mind.
This special offer combines premium technology, elegant design, and long-term reliability at an unbeatable price.
Whether you’re securing your home, apartment, or rental property, the WELOCK Smart Lock U81 offers the perfect mix of innovation and practicality.
Upgrade today to experience the future of door security — smart, secure, and stylish.
