1. Function: touch panel; blood pressure; heart rate monitor; step pedometer; calories; distance track; sleep monitor; alarm; message reminder, waterproof
2. Movement: Digital Watch
3. Strap Material: Rubber
Case diameter: 4.55cm approx
Case thickness: 1.1cm approx
Case meterial: Plastic
Band length: 25cm approx
Watch weight: 17g
Band meterial: Rubber
A. you can swim with it but please do not wear in sauna room or take a hot bath or to a warm swimming pool to avoid steam.
B. When testing the heart rate monitor, let your hands stay parallel to the ground to prevent light leakage.
C. If you charge the bracelet for the first time, and there is no response after more than half an hour after charging, keep it charged for more than 4 hours to operate.
D. Blood pressure and heart rate working principle:
The principle is the photoelectric transmission measurement method. In principle, when the sensor in the wristband makes contact with the skin and emits a beam of light, it measures the reflected/transmitted light. The blood absorbs light at a specific wavelength, each time the heart pumps blood, the wavelength is absorbed in large amounts. The wristband combines green LED light with a photosensitive photodiode to measure the amount of blood circulating at the wrist at a specific time to obtain heart rate information.
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