1. Non-standard wearing manners such as light leakage caused by imperfect fitting, arm swinging, and slight movement of the band on the skin can affect the measurement of heart rate signals. Wearing the band too tightly, raising the arm, and making a fist can also affect blood circulation and thereby affect heart rate signals which is normal for medical purposes also.
2. The correct way of measurement is to keep your arm flat, relax, still, and make sure that the band is close to your arm. Notes: With the correct wearing manner, individual differences in skin color, hair, tattoos, and scars may also affect heart rate monitoring.
(The heart rate of people with brown skin as measured by band may vary in accuracy, because darker skin colors can absorb green light from the sensors.)
What factors can affect the heart rate reading result?
