Features: Advanced Health Monitoring: The Smart Rings tracks heart rate, blood oxygen levels, Calories, and sleep quality seamlessly, ensuring you stay informed about your health status effortlessly. Water Resistance: With IP68 waterproof, the rings can be worn worry-free in various conditions, including swimming and showering. Real-Time Exercise Monitoring: Supports multi different exercise modes, providing real-time heart rate data during workouts to help optimize your fitness routine. Stylish and Innovative: Combines cutting-edge technology with a stylish design, making it a perfect accessory for health-conscious individuals. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Battery capacity: 17 mAh APP: QRING Bluetooth: 5.0 Waterproof level: IP68 Charging method: Magnetic charging Package List: 1x Health-Tracker Smart Rings