7/24 heart rate monitor and sleep tracking The smart watch can accurately monitor heart rate data. You can view this data directly on the kids watch to help you better understand your kids’ health. Provides comprehensive analysis of children’s sleep quality (deep sleep, light sleep and waking time) to help children develop a healthier lifestyle. Make fitness fun for kids and build healthy habits All-day activity tracking: Automatically tracks your kids’ steps, distance, and calories burned. Supports 8 activity modes: swimming, running, walking, cycling, yoga, football, basketball, etc. Sedentary reminder, drink water reminder, call/SMS/Message reminder, etc., IP68 waterproof, ready to play in water. Wide compatibility and multi-language support The watch fitness supports and is compatible with most smart phones Android 4.4 above, IOS 8.0 or above. The kids watch supports Chinese, English, German, French, Spanish, Italian, Japanese, follow the phone system language changes. 2 kinds of