Children's smart health bracelet: continuous blood oxygen, heart rate, body temperature monitoring Customized dial: boot animation + built-in 5 cartoon U + personalized dial to meet different preferences children, more choices, more happiness. Supports detailed step counting: automatically records and displays the number of steps every half hour. Record every the child's steps, the movement of each period, and you can see the sleep monitoring record at a glance: automatically identify the child's falling asleep, waking time and sleep status child. Analyze your child's sleep situation, help your child achieve their sleep goals, and start a new day full of energy IP68 waterproof: IP68 waterproof, whether you are swimming or surfing at the beach, you can let go of your hands and feet and enjoy of the moment. Magnetic charging, strong battery life: The magnetic charging cable has a short circuit protection function, which is more convenient and safer.