Does Xiaomi Smart Band 8 support sleep breathing quality monitoring?

Support.
The principle of sleep breathing quality monitoring: Snoring or other diseases (such as obstructive sleep apnea) after sleep will cause a significant decrease in blood oxygen saturation. The device judges whether there is shortness of breath during sleep by monitoring the drop in blood oxygen saturation and sleep quality during sleep. According to the number of occurrences of dyspnea, a corresponding sleep breathing quality score will be given in the App. Poor sleep breathing can lead to daytime fatigue and sleepiness.
Turning on sleep breathing quality monitoring will greatly reduce the battery life of the band. Please choose whether to turn it on or not according to your personal needs.
Open path:
App: Homepage of Mi Fitness App- >Sleep->Three dots in the upper right corner->Sleep Settings.
band: Devices-Sleep-Advanced monitoring-high-precision sleep monitoring