Kids Sport Watch: This 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 help record children's physical activity. Powerful Battery Life: The kids digital watch has a USB charging interface. It can be charged using any standard USB adapter, such as a smartphone charger, computer, or portable power bank. Battery life lasts approximately 15 days on a full charge. Silent Vibrating Alarm: Parents can set two vibration alarms to help remind children about study and rest times. The silent vibration function works discreetly in classrooms or dormitories, alerting the child without disturbing others. Ideal for students. Reliable Quality: This lightweight kids watch is soft and comfortable on the skin. The design is child-friendly and appealing. The strap has multiple adjustable holes and is made of flexible, skin-safe materials suitable for small wrists. Waterproof Resistant: The boys' digital watch is 5 ATM water-resistant, making it suitable for hand washing, face washing, and rainy conditions. It is not suitable for swimming, hot water baths, saunas, or diving.Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!