If you can get by without needing Wi-Fi access, though (which means no smart-home integrations and no remotely checking on the door's locked status), this affordable lock is a great purchase.

Door Lock Ratings Protect your home and family with the best door lock or smart lock. Some door locks offer extra security with deadbolt and spring-bolt reinforcement technology.

Even if the exterior door has a lock, extra security can help fortify a sliding door to the yard, and locking your bedroom door can keep your college roommate from wandering in. While the best fix ...

Xiaomi has just launched a new addition to its smart home lineup — the Smart Door Lock 2 Cat-Eye Edition — and it’s got some handy upgrades. The standout feature here is right in the name: ...