Screen size: 1.91 inches 280 * 340PX Battery capacity: 200mAh App operating system: IOS 9.0 or above, Android 4.4 or above Charging method: magnetic suction charging wire Band color: metal black, champagne gold Specifications: 1 [Support AI voice intelligence for easy operation] Connect to your phone, be able to listen, do, and be on call, easily complete daily functions through voice assistant 2 [50+Sports Modes] Supports up to 50+professional sports modes, based on precise real-time heart rate detection and Al algorithm. The watch will record various data during movement in real-time, ensuring more efficient and safe movement. 3 [24-hour heart rate monitoring] The watch is equipped with a professional heart rate sensor to detect the speed of heart beat. Simultaneously supporting 24-hour uninterrupted high-precision heart rate monitoring, allowing you to have a better understanding of your own health 4 [Wrist thermometer] 24-hour temperature measurement. When testing body temperature, the bottom temperature sensor must be in full contact with the skin (test after wearing it for 10 minutes). The temperature test will be affected by the environmental temperature difference and only serves as a warning and reminder. 5 [ Precise Control] Simply gently rotate the "rotating crown" to accurately identify various items, providing a smooth and enjoyable experience for you. The goal is direct and easy to interact with. Package Included: 1 * Watch 1 * Charging cable 1 * Instructions