Activity Tracking & 19 Sports Modes All-day activity tracking can automatically track your kids' steps, distance and calories burned. There are 19 sports modes, such as Outdoor & Indoor (running, walking, biking), swimming, yoga, basketball, volleyball, football, rowing ski, etc., allowing you to track a variety of data in real time while exercising.Heart Rate Monitor & Sleep Tracker The fitness tracking watch can automatically monitor your children's daily real-time heart rate and track their sleep quality at night. You can easily get the data of your children's sleep patterns via the "H Band" app. The silent alarm clock can wake up your kids without disturbing others.IP68 waterproof rating. The IP68 waterproof rating of the watch helps you worry about swimming, diving or showering. Just take it off before a hot bath.Extended Compatibility & DIY Watch Face The smartwatch compatible with iOS 8.0 or higher, Android 4.4 or higher smartphones (not for tablet). It must be paired with the "H Band" app to be used. Kids can also choose their 4 favorite thematic interfaces and DIY watch face, it can be any picture, such as your family, pet, landscape, etc.Easy to charge & Long Battery LifeYou can charge this watch with the included magnetic cable. With a 2-hour charge, the fitness tracker battery can last up to 6 days. This watch is the best choice for birthday or Christmas gifts for boys and girls.