Features: Experience heart rate monitoring and intelligent sleep analysis with our braided silicone sports wristband, featuring multiple sport tracking modes and 7 day battery life for uninterrupted wellness insight. Engineered with medical grade silicone straps and IP68 waterproofing, this fitness trackers delivers precise activity through advanced sensors while maintaining lightweight comfort during workouts or swimming. Designed for health awake professional, gym enthusiasts, and travelers seeking holistic fitness data, it seamlessly adapts to busy schedules and active lifestyles. Track swimming lap in pools, optimize sleep recovery after late night work event , or monitor performances during mountain hikes – all with 1 versatile wearable. Its woven silicone band resists sweat erosion and skin irritation, making it ideal for continuous wear across office meetings, HIIT training, and trips without charging hassles. Specifications: Component : silicone Size: about 30x5cm/12x2inch Battery: included Package Includes: 1 set Smart Sports bracelets note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.