1.Clean and dry your wrists of sweat or sunscreen.
2.Please check the optical heart rate sensor on the back of the
watch for scratches or flashes.
3.Try wearing it on your other wrist and measure your heart rate
again.
11.Backlight:
1.In the dark environment, if you need to enhance the brightness
of screen, press any key can open the backlight, continue to swipe
the screen to keep backlight on.
2.In the “Settings” of watch or the APP, there are options for
automatically turning on the backlight by rotating arm during
6:00pm to 12:00pm. In original setting, it is off. If you need this
function, you can turn it on.
3.The backlight dwell time after the stop operation can be set in
Me-My device-more- screen saver time in HPlusFit.
4.Excessive use of backlight will affect standby time.
12.Vibration:
The watch’s vibrating reminder can be turned on or off in “settings”.
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