Dress for you! Design of jewelry and fitness tracker. Bring different styles and colors of shoulder straps. Looking for a touching style. All-weather blood pressure and heart rate: Use 24/7 heart rate and blood pressure monitoring watch to know your resting heart rate and blood pressure trend. Provide data support for your exercise plan. (only used to encourage a healthy lifestyle, not for medical purposes) Blood oxygen: ultra-thin fitness tracker can measure your blood oxygen saturation and help you understand your physical state. Very suitable for high-intensity exercise and sports, such as marathon and gym exercise. Sleep Tracking: Better sleep can provide motivation for your life. Track your time in light and deep sleep to better understand your sleep quality every night. Track all-day activities: Your steps, distances and calories burned will be automatically counted and recorded. Intelligent function: Easy-to-use fitness tracker with 7 exercise modes and various intelligent functions. DIY dial, call and message notification, weather, drinking and sedentary reminder, alarm clock, music control and female menstrual reminder. Compatibility: Slim Fitness Tracker is compatible with Android 5.0 and smartphones with iOS 10 and above, equipped with Bluetooth 4.0, but not compatible with PC, iPad or tablet. A full charge can provide up to 7-10 days of working time. (Depending on usage and other factors)