Xiaomi Kids app→My→Watch management->Power-off time. During the hibernation period, the watch will be turned off, if you want, you can press and hold the power button for 3 seconds to turn on the watch and use it normally, when it is still in the hibernation period, the watch will be turned off again after 15 minutes without wearing or in a static state, it cannot be hibernated when charging. It is recommended to turn off the watch when it is sleeping to extend the standby time.
How to set Power-off time on Xiaomi Smart Kids Watch？
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