Never get locked out again with a smart lock you can control from your phone, with your face, or with a fingerprint. Never get locked out again with a smart lock you can control from your phone, with ...

For around $80, you get built-in WiFi, a fingerprint reader, and a built-in tamper alarm.

Upgrading to smart locks brings convenience and keyless entry. Here is what you need to know about security, battery backup, and door compatibility.