Optional APP and Bluetooth: BIGGERFIVE BRAVE 3 kids smart watch can work seperately without APP. Without APP, most functions can be used normally and Bluetooth can be turned off to extend battery life and reduce radiation. With APP, you could explore more functions and watch faces. Customizable Watch Face &1.8" Amoled Touch Screen：Our kids smartwatch boasts a 1.8" newly upgrated Amoled touch screen and offers 100+ exquisite cloud dials in APP BIGGERFIVE. More durable, and more versatile. Monitor Health and Develop Healthy Habits: Monitors real-time heart rate and tracks sleep patterns to promote your child's well-being. Up to 10 alarms can be set per day (supports vibrate mode) to remind your child what to do at each time point and help them develop regular living habits. All-Day Activity Tracking: BIGGERFIVE BRAVE 3 kids fitness tracker watch Automatically counts steps, distance, calories burned, and active minutes. Supports 100 sports modes like walking, running, cycling, swimming(30m Waterproof), basketball, and more. Puzzle Games under Parents' Control: 7 built-in puzzle games can help train your boys' or girls' reaction ability and calculation ability. You could restrict your child from playing games at school in the watch or in the APP BIGGERFIVE. BIGGERFIVE BRAVE 3 Kids Smart Watch: Fun, Health and Independence! This kids smartwatch works with or without a phone—use it on its own to save battery or connect to the app for more watch faces and features. The 1.8" AMOLED touch screen comes with 100+ cool customizable designs. It helps your child stay active and healthy with all-day stress and sleep tracking, 100+ sports modes, and 30m waterproof rating. Set vibrating reminders to build good habits, and let them enjoy 7 parent-controlled puzzle games for brain training. A perfect gift that keeps kids happy, healthy, and engaged!