10 Best Smart Locks

The Ultion Nuki Smart Lock 2025 is designed for PVC and composite doors up to 55mm thick, making it a great choice if you have these door types and want to upgrade security without changing the entire lock. It offers strong security with a 3-star PLUS rating, combining Ultion’s trusted mechanical lock with advanced electronic features for high protection. Its built-in WiFi allows remote locking and unlocking from anywhere, which is handy if you need to let guests in while away.

Compatibility with popular smart home systems like Alexa, Google Home, and Apple Home (via Matter) means you can control your lock using familiar devices and voice commands. The auto-lock and auto-unlock features add ease, especially when your hands are full or you’re in a hurry. Access options are flexible: you can use a physical key, app, keyfob, keypad, or even fingerprint recognition, covering different user preferences. The lock runs on a lithium-ion battery, included with the unit, so you won’t need extra purchases.

Installation comes with all necessary hardware, but the lock is sized for thinner doors under 55mm, which might not fit thicker door frames. This smart lock effectively blends strong security with modern smart features, making it well suited for UK homes seeking a secure and convenient upgrade on compatible door types.

The SwitchBot WiFi Smart Lock Ultra with Keypad Vision is a high-tech smart lock designed to fit most existing Euro profile door cylinders without drilling, making installation easier and less damaging to your door. Its standout feature is advanced 3D facial recognition that unlocks the door automatically as you approach, even in low light or when your hands are full, offering a truly keyless experience. This facial data stays securely on the device, enhancing privacy. Besides facial unlock, it supports multiple access methods including fingerprint, passcodes, voice commands, Apple Watch, and remote app control, making it flexible for different users and situations.

In terms of connectivity, it works with major smart home platforms like Alexa, Google, Apple HomeKit (via Matter), and IFTTT through the included Hub Mini, allowing easy integration into existing smart home setups. Battery life is impressive, with up to 9 months on a single charge plus backup batteries and emergency power options, reducing worries about lockouts. The lock is made from durable aluminium and is slimmer than previous models, with a sleek and modern look.

This smart lock is well-suited for users who want advanced biometric security combined with versatile unlocking options and easy installation, particularly in smart homes using popular platforms. Some users might find the facial recognition distance (0.6 to 0.9 meters) a bit limited in larger entryways.

The Simpled SF Weatherproof SlimSeries Smart Lock Touch offers a versatile and modern solution for those looking to upgrade their home security. With 7 different unlocking methods, including fingerprint, passcode, smartphone, Bluetooth, smartwatch, NFC, emergency keys, and WiFi bridge for Alexa and Google Home, this smart lock provides a variety of ways to access your home, which can be particularly convenient for families with different preferences. The ability to share customisable access via an app is perfect for granting temporary or recurring entry to trusted guests, making it ideal for homes, rentals, and offices alike.

The lock is designed with the UK weather in mind, ensuring that the outside panel is weatherproof. However, it is important to note that the inside panel must be kept dry, which could be a drawback in certain situations. The lock’s sleek and modern matt black finish fits well with most door types, and its retrofit design allows for quick and easy installation without the need for extensive modifications to existing doors. Constructed from durable brass and aluminium, it promises both strength and longevity.

One potential downside is its reliance on AA batteries, which will require regular replacement. However, the inclusion of batteries and additional components like mechanical keys, proxy fobs, and phone tags helps mitigate this inconvenience. With a 2-year warranty offered by the London-based company Simpled, users can also have peace of mind regarding product reliability. Customer reviews are generally positive, indicating satisfactory performance, though some users might experience occasional hiccups. The Simpled SF Weatherproof SlimSeries Smart Lock Touch stands out for its multiple access methods, ease of installation, and suitability for various environments, despite some minor drawbacks related to its power source and internal panel exposure to moisture.