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2. To achieve the optimal performance of the heart rate sensor,
make sure its back to contact with your skin. When wearing your
wristband, keep it neither too tight nor too loose but leaving some
space for the skin to be able to breathe. Tighten the wristband
before you start to exercise and properly loosen it afterward.
Too loose
If the band can easily move
up and down the wrist, or the
heart rate sensor cannot
collect the data, try
tightening the wristband.
The band can comfortably fit
around the wrist.
4
Just right
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