Kids Sport Watch: Our kids fitness tracker watch does not require connection to a phone or any app and is easy to set up. It features step counting, stopwatch, calorie tracking, and mileage tracking to record children's activity data. Powerful Battery Life: This kids digital watch has a USB charging interface. It can be charged using any standard USB adapter, computer, or portable charger. The battery lasts approximately 15 days on a single charge. Silent Vibrating Alarm: Parents can set two alarms to help children manage study and rest times. The vibration alert is discreet and effective, ideal for classroom or dormitory use without disturbing others. Reliable Quality: This lightweight kids watch is soft and comfortable on the skin. The design is appealing and child-friendly. The band has multiple adjustable holes and is flexible for small wrists. Waterproof Resistant: The boys' digital watch is 5 ATM water-resistant, suitable for hand washing, face washing, and rainy conditions. It is not suitable for swimming, hot water use, saunas, or diving.