Hesvit S3 - Accuracy and Measurement; Step and Heart Rate Accuracy Factors; Safety and Handling Instructions; General Safety Precautions

22 / 23
Ⅵ. Important Date Reminder
 Countdown the next physical period for women by setting in the APP.
 Men can set important date reminder in the APP.
Ⅶ. Accuracy
 Steps
Hesvit S3 converts the body motion situation (e.g. acceleration) into a digital measurement data
through triaxial accelerometers. By analyzing the acceleration data, it provides the information
about the frequency, duration, intensity and movement patterns (walking or running) of sports
to determine the steps, and walking distance, calories burned and sleep quality for the users.
Triaxial accelerometers can measure the displacement movement in any direction to ensure the
accuracy of the data.
The algorithm for counting steps used in the Hesvit S3 can determine the user's movement
patterns (walking or running.) by frequency and amplitude of a moving arm. More specifically,
Hesvit S3 worn on the body is more like a wrist activity sensor. In many cases, the arm moves
but the body does not move, such as beating a drum, cooking, and patting the back of babies to
coax into sleep, which makes the band judge the user’s physical status to be active and thus
recording more steps.
If the user push a stroller, shopping cart and do other movement that restrict the arm swinging
movement, the band will record less steps due to the less arm movements.
Due to the influence of user movement pattern and impact of external environment, the band
will record steps higher or lower than the exact value in some certain period, but this will not
influence the overall statistics.
 Heart rate
Hesvit S3 obtains the heart rate data by measuring the pulse of the blood through the
photoelectric reflective sensor. The number of pulse is consistent with the heart rate.
In order to accurately measure the heart rate, you need to wear the band properly.
The following situations may result in the incorrect data.
1) not wear the band properly; 2) the gap between the band and wrist is to wide 3)too much arm
movement, such as running or walking; 4) the band is exposed to glare
Factors related to heart rate: sports, temperature, humidity, pressure level, body posture,
Caffeine intake, drug and etc.
Ⅷ. Important Safety Instructions
Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions.
 Do not try to open the smart band, substances contained in this product and /or its battery