eufy Security has built a reputation on reliable smart home devices that avoid monthly fees. The Smart Lock C220 follows that principle, integrating a fingerprint reader and Wi-Fi directly into the deadbolt itself. You won’t need a separate bridge or hub to control it remotely.

The self-learning fingerprint sensor is the core feature. It improves its accuracy each time you use it, moving from a reliable unlock to a near-instantaneous one. You get six access methods total, including physical keys, a keypad, and the eufy Security app. The built-in Wi-Fi sends real-time notifications to your phone for any activity. Battery life is rated for about eight months on AAs, though heavy daily use will shorten that.

Installation is straightforward if your door is pre-drilled for a standard deadbolt. The aluminum construction feels solid, and the lock carries an IP65 weather resistance rating. It’s a complete, standalone entry system that brings modern access to a traditional door format.