Mi band 8pro hidden function

As a smart bracelet, mi band 8Pro has enough functions, including not only health monitoring (heart rate, blood oxygen, sleep, etc. ), motion tracking (running, walking, cycling, etc. ), message reminder (phone, SMS, social, etc. ) and so on. In addition, there will be some interactions with third-party applications, such as payment and music control. , but they all need to be set and used by users themselves, not hidden functions.