Why does the back of the Cavosmart veryfit smart wristband sometimes flash green and sometimes not? This is because the automatic heart rate monitoring switch is turned on. In principle, the sensor that contacts the skin with the fitness tracker emits a beam of light on the skin, measuring the reflected / transmitted light. Because the blood absorbs light at a specific wavelength, Each time the heart pumps blood, the wavelength is absorbed in large quantities to determine the heartbeat.
After the heart rate auto-monitoring switch is turned on at the app terminal, the Cavosmart fitness tracker automatically monitors the heart rate 24 hours a day, collects data every 10 minutes, and displays the data every 30 minutes. Flashing is normal and data will be turned on once every 10 minutes.
When wear properly, individual differences in skin color, hair, tattoos, and scars may also affect the heart rate signal. If the heart rate test fails, when measuring the heart rate, it is necessary to pay attention to keeping the person in a stationary state, and keep the bottom of the heart rate monitor tight against the arm without leaving a gap, and do not shake the arm during measurement.