A core indicator of your physical state. Track heart rate during the day to monitor exercise intensity and daily physical load. At night, it helps observe your heart rate while sleep.

Big changes in heart rate can sometimes reflect how your body is responding to things like stress or fatigue, making it a helpful signal for staying in tune with your well-being

 

Heart rate variability (HRV) is influenced by multiple physiological factors, including stress levels, sleep cycles, and autonomic nervous system activity.
Fluctuations in HRV may reflect individual wellness trends. This information is for personal reference only and is not intended for diagnosing or assessing any medical condition.

 

Blood oxygen saturation is the percentage of the capacity of oxygenated hemoglobin combined with oxygen in the blood to the capacity of all conjugated hemoglobin, that is, 
the concentration of blood oxygen in the blood. During sleep, the normal range for blood oxygen levels is generally between 95% and 100%. 
Blood oxygen values may vary based on personal conditions, environmental factors, and how the device is worn.
If you experience unusual symptoms or have health concerns, please consult a medical professional. 
The blood oxygen data shown by this product is intended solely for personal wellness management during leisure or daily activities.
It has no medical implication and is not intended for diagnostic use.
In certain circumstances, such as when the ring is not worn or when this feature has not been enabled, the feature card will not be displayed. Measuring blood oxygen during sleep consumes more power, which may shorten the battery life of the ring. You can also choose to disable this feature in the settings to reduce power consumption.