eufy Security has built a reputation on reliable, no-subscription smart home devices. The Smart Lock C220 brings that same sensible approach to your front door, with a key advantage: its self-learning fingerprint scanner gets more accurate the more you use it.

Unlocking happens in under 1.5 seconds with a registered fingerprint. The AI learns subtle variations in your touch, so you rarely need a second attempt. You also get five other methods, including a physical key, passcodes, and Wi-Fi control via the app for real-time notifications. The lock runs on eight AA batteries for about eight months, a realistic estimate for daily household use. Its aluminum build feels solid and handles the elements without issue.

Installation is straightforward, replacing your existing deadbolt in under thirty minutes for most standard doors. The built-in Wi-Fi means you don’t need a separate hub. While the battery life is solid, it’s a good practice to note the auto-reminders and keep a spare key accessible, as you would with any electronic lock.