Yes. The device password is turned off by default. When it is turned on, the device will be locked if it is detected that you are not wearing it.
After wearing it again, switching from running bean mode or necklace mode to wearing the band on your wrist, and restarting, you need to enter the password to unlock it.
To set the password for the device, here are the two methods for your reference:
1. Open the Mi Fitness APP >> [Device] >> [PIN] >> [Set PIN] >> enter 6-digit PIN;
2. Enter the main interface of the band >> [Settings] >> [Lock Screen] >> [Device password] >> turn on the toggle >> set a password.