BIGGERFIVE Kids Fitness Tracker Watch for Girls Boys, Waterproof Slim Activity Tracker, Pedometer, Calorie Counter, Sleep Monitor, Silent Alarm Clock, Step Counter Watch, Kids Gift Idea[COMPATIBILITY] kids fitness tracker watch With free app "VeryFitPro" , Compatible with smartphone. [BUILT-IN USB DESIGN & LONG BATTERY TIME] You can charge the fitness tracker by any USB adapter without requiring an extral charger. Charging for 1-2 hours, the fitness tracker battery can last up to 7 days. [SLEEP TRACKER & SILENT ALARM CLOCK] Automatically track how well you sleep at night, get the data about your sleep trends through the night in the app.The silent alarm clock can wake you up without disturbing others. [ALL-DAY ACTIVITY TRACKING] Automatically tracking your kids steps, distance and calories burning, you can see the data easily by tapping the watch display or checking your phone's app. [ULTRA SLIM STRAPS] This exclusive ultra-slim and lightweight fitness tracker is specially designed for kids 5+, with a total weight of only 17g, with more emphasis on children's wearing comfort, make kids more willing to wear and build healthy habits.Compatible Devices: Smartphone. Age Range (Description): Kid. Target Audience: Kid. Shape: Rectangular. Special Feature: Time Display, Sleep Monitor, Alarm Clock, Activity Tracker, Pedometer, Calorie Tracker, Notifications See more. Screen Size: 0.96 Inches. Color: Blue. Style: Modern. Model Name: ID115U. Brand: BIGGERFIVE. Date First Available: September 22, 2020. Best Sellers Rank: #37,811 in Sports & Outdoors. Customer Reviews: 4.1 out of 5 stars 1,657 ratings 4.1 out of 5 stars. : B08JQ3J9M5. Sport Type: ?Fitness. Style: ?Modern. Part Number: ?Iger876us. Manufacturer: ?BIGGERFIVE. Material: ?Tpu. Color: ?Blue. Model Name: ?ID115U. Brand Name: ?BIGGERFIVE. Item Weight: ?17 Grams. Item Dimensions LxWxH: ?8.3 x 0.6 x 0.35 inches. Package Weight: ?0.05 Kilograms. Item Package Dimensions L x W x H: ?4.8 x 3.98 x 0.75 inches.