Explanation: Appearance size: 260*43*9mm Waterproof level: IP67 Battery capacity: 230mAh Charging time is approximately 60 minutes Working time: 5-7 days Waiting time about 15 days Features: 1 [Support AI voice intelligence for easy use] Connect to your phone, you can easily listen, do and search, easily complete daily functions through the voice assistant 2 [Multi-sports modes] Supports precise real-time heart rate detection and multiple professional sports modes based on AI algorithm. The watch will record various data in real time during movement, ensuring more efficient and safe movement. 3 [24-hour heart rate monitoring] The watch is equipped with a professional heart rate sensor to detect heart rate. Support 24-hour uninterrupted high-precision heart rate monitoring at the same time, allowing you to better understand your own health 4 [Precise control] Gently rotate the "rotating crown" to accurately identify various items, providing a smooth and enjoyable experience for you. The target is direct and easy to interact.