The internal mechanism of Xiaomi's automatic smart door lock is a set of power system composed of linear driving force, planetary gear reduction, micro-motor power, status perception and other components.

In terms of security, C-level lock core, fingerprint recognition rate 98.94%, can be combined with multi-dimensional information such as fingerprints, skin, conductivity, etc.; passwords can be set to 50 sets of long-term passwords, periodic Passwords (nanny, hourly labor, etc.) and one-time temporary passwords, support 20-digit virtual input; also support NFC unlocking, mobile Bluetooth unlocking, HomeKit unlocking, etc.