BIGGERFIVE Fitness Tracker Watch for Kids, Pedometer Watch with Calorie Counter and Sleep Monitor, Waterproof Activity Tracker Wrist Watch with Vibration Alarm.

"Slender and short straps for children. The slim and adjustable design of the fitness tracker wristband makes it suitable for teenagers and children ages 5 and up. Made of flexible, durable TPU material, free of harmful substances. Lightweight at just 17g, for a comfortable wear." "Full-day activity tracking: Automatically tracks steps, distance, and calorie burn. Easily view the data by tapping on the watch display or checking your phone's app." "Sleep monitoring and vibrating alarm: Automatically track how well you sleep at night, get the data on your sleep trends throughout the night in the app. The quiet vibrating alarm can wake you up without disturbing others." "Integrated USB design and long battery life. You can charge the fitness tracker with any USB adapter, no additional charger needed. Charging for 1 2 hours, the fitness tracker battery can last up to 7 days." "Compatibility: Larger fitness tracker watch for kids with free app 'VeryFitPro', compatible with smartphone."