What is the blood oxygen sensor in Xiaomi Smart Band?

Xiaomi Smart Band is equipped with a blood oxygen sensor that is also known as a SpO2 (peripheral capillary oxygen saturation) monitor. This sensor measures the oxygen saturation level in the blood, which indicates the percentage of oxygen-binding sites in the blood that are occupied by oxygen molecules.
For reference, here are some details of the blood oxygen sensor:
1. The blood oxygen sensor on Xiaomi Smart Band allows to monitor SpO2 levels easily and regularly. This feature provides insights into respiratory health and can help to detect potential problems such as sleep apnea, asthma, or other respiratory disorders;
2. Tracking blood oxygen levels during physical activity can provide insight into cardiovascular health and exercise intensity.
Friendly tip:
It's important to note that while the blood oxygen sensors in the band can provide useful information, which is not as accurate as medical-grade devices used in clinical settings. Interpret the data provided by these sensors with caution and consult a healthcare professional for diagnosis and treatment recommendations if there is any health concerns.