Track your physical status in real-time through built-in sensors, allowing you to know your physical health anytime, anywhere Continuous Blood Oxygen Tracking At night, it will continuously track your blood oxygen saturation, analyze your sleep health and breathing health, breathing rate, sleep apnea, and even your physical activity times and heart load, it can track, of course, it also There is nighttime hypoxic vibration reminder. Tip.The tracking of blood oxygen saturation is conducive to early detection of respiratory system problems, and paying attention to blood oxygen saturation is beneficial to health.