Does the Xiaomi Smart Band 9 Pro supports blood oxygen monitoring and all-day tracking?

Support. Monitoring blood oxygen levels is important for assessing and managing respiratory and cardiovascular health, indicating how efficiently oxygen is being transported through the bloodstream to vital organs and tissues. After waking up the band, you can manually measure the blood oxygen in the respective APP. The band will show the result after the measurement.
The Xiaomi Smart Band 9 Pro supports all-day tracking. After enabling it, when the band detects the inactive status, it will measure the blood oxygen automatically and consume more power. You can go to the [SpO2] on the band >> [Settings] >> [All-day tracking].
Note:
1. The Xiaomi Smart Band 9 Pro takes about 15 to 60 seconds to singly measure the blood oxygen. Several factors will influence the measuring time, such as wearing status, skin characteristics and environment. It is recommended that the back of the band fit snugly on the wrist;
2. If the blood oxygen is measuring, the red light and infrared light at the bottom of the band will be turned on. If the green light is blinking, the heart rate is being measured.