No heart rate function, no charging function, button battery running.
The watch doesn’t have 24-hour display, it has morning and afternoon display.
Can not be on mode, touch the display time of 3 seconds, will automatically off
L44 battery is used
This watch can be used as a disposable battery, because replacing the battery will destroy the waterproof glue, the power is enough to run for more than 1 year.
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