How to measure SpO2?

Oxygen saturation (SpO2) refers to oxygen-saturated hemoglobin relative to its total amount in the blood. It is important physiological parameter for accessing the respiratory and circulatory systems. An SpO2 level of over 95% in vascular blood is considered normal.
Operation:
1. Short press the right button to open the application list, and select blood oxygen application to start measuring blood oxygen saturation
2. During mountaineering, the sports application can be run in the background, and then the oxygen saturation application can be started for blood oxygen measurement;
3. After the measurement, the watch will display the measurement result, or check the latest measurement result.
Precautions for blood oxygen saturation measurement:
1. Wear the watch to a finger distance from the wrist bone;
2. Wear the watch tightly;
3. Place your arm on the table for measurement with the watch screen facing up;
4. Please stay still and focus on the measurement during the measurement;
5. Factors such as hair, tattoos, shaking, low temperature and improper wearing may affect the measurement results, or even lead to the failure of measurement;
6. The measuring range of this product is 80%-100%. This function is for reference only and should not be used as the basis for medical diagnosis.