Wearing
1. Comfortably Tighten the band around your wrist about 1 finger
width away from your wrist bone.
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 breath. Tighten the
wristband before your start to exercise and properly loose it
afterward.