1. MULTIPLE SPORTS MODES: Supporting a variety of sports modes, such as running, cycling, swimming, etc., it can record sports data in real time and help users achieve better fitness results.2. WATERPROOF: With good waterproof performance, users can wear it in water related environments such as hand washing and swimming without worrying about being affected by sweat or water during exercise.3. SMART HEALTH COMPANION: Smart is the ideal health companion for users, enabling them to know their exercise status and health condition, suitable for both men and women.4. PREMIUM MATERIALS: Made of high strength stainless steel and ti alloy materials, it is well made and has good durability, which can be used for a longer time.5. COMFORTABLE TO WEAR: This smart is made of skin friendly material and is lightweight, so it will not cause discomfort even if you wear it for a long time, and it will not bring you any burden.Spec:Item Type: Smart Material: Ti Alloy, Stainless SteelWeight: Approx. 80g / 2.8ozBattery Type: (Built In)Battery Model: 170725Battery Capacity: 18mAhDiameter: 2.5cm / 1inPackageList:1 xSmart 1 x USB Data Cable1 x English Manual