Smart Health Ring 24/7 heart rate and SpO2: The ring continuously tracks your heart rate around the clock and lets you view real time blood oxygen levels in the companion app. It also stores long term trends for reference. Sleep analysis: Automatic sleep monitoring records deep sleep, light sleep and wake times, then provides a clear sleep quality score and practical insights to help you improve rest. Fitness and activity: Auto counts steps, calories and distance. In the app, enable sport modes to track route, duration, pace and heart rate during exercise, giving you real time performance and progress. Comfort and design: Frosted surface offers a distinctive texture while remaining stylish. Lightweight and compact at about 6.8 g for comfortable all day wear. Waterproof and durable: IP68 rating supports swimming, handwashing and cold showers. Note: avoid hot water or steam. Compatibility: Works with the companion app on iOS and Android for easy syncing, viewing and sharing of your health data. Practical use cases: Use during a morning run to monitor pace, distance and heart rate; wear at night to analyze sleep stages and quality; wear all day for ongoing wellness tracking with HR and SpO2.