Before purchasing, be sure to determine whether the door of your home can be installed.

Smart door locks are roughly divided into three categories: automatic locks, push-pull locks and handle locks.

It is best to understand the automatic lock, that is, after pressing the fingerprint or entering the password, the door lock tongue is automatically retracted, and the door can be opened directly. It is very convenient to use and looks like a door handle.

The push-pull lock requires one more step of pushing and pulling on the door lock. Compared with the automatic lock, it has an extra handle that can be pushed and pulled in appearance. Both automatic locks and push-pull locks are driven by a motor, which makes the power consumption of automatic and push-pull smart door locks faster, and many have only a few months of battery life. Some locks are powered by lithium batteries, which is very inconvenient when changing batteries.

The handle lock is a more traditional way to open the door: after verification, you need to press down on the handle to retract the tongue to open the door. The appearance is also similar to a traditional door lock.

The price of the handle lock is the lowest of the three locks. Because the handle lock relies on human power to retract the bolt, the general handle smart door lock can last more than one year with a single change of battery. So I recommend the handle lock, which is cheap and stable and saves electricity.

During publicity, manufacturers will say that their smart door locks have many ways to open the door, but in actual use, the two commonly used are fingerprints or passwords. Therefore, ordinary smart door locks have three door opening methods: fingerprint, password, and emergency mechanical key, which are sufficient for most families, and there is no need to force them.