What Is a Smart Door Lock and How Does It Work?

One of the first things you should think about is how much it will cost to replace your old lock. After all, a smart lock is a lot more expensive than a standard-issue lock from your local hardware store. A few smart locks in the $100 range are available (not many of which made the cut for this list) Expect to pay between $200 and $300 for a lock that you can control from anywhere and with features like voice commands, push and email notifications, and tamper alarms.

Many smart locks come with a smartphone app that lets you lock and unlock doors by tapping an icon. Some companies provide a web application that allows you to control items from your desktop or laptop computer.

You’ll need to be within range (about 40 feet) to interact with a Bluetooth-enabled lock, whereas locks with built-in Wi-Fi circuitry or a Wi-Fi bridge can be operated from practically anywhere as long as they’re linked to your home router. Make sure your smart lock contains activity logs so you can see who has entered and exited your home, as well as when the action occurred.