How to select a good smart lock ?

More and more families are using smart locks now , and “smart” door locks have brought a lot of convenience to our lives. But the safety of locks is the first concern of consumers. Before buying a smart lock, we need to understand more first .
First , the fingerprint has Chinese style 96,120,160 , also has import 96,120,160 . as higher as better .
Second , the motor is very import also , you know why our smart lock is easy to has problem , because they use the cheapest motor , but not saying as expensive one as better , should analysis the smart lock chip also , perfect match is the best .
then , it is the products details , this is same as brand & market products . all of you know very well .