IP67 Waterproof Bracelet - Pedometer, Children Activity Tracker, Waterproof, OLED, Bluetooth 4.0 (WITH Heart Rate, Navy Blue)Key Features...ID115HR Upgraded version (with heart rate test) :RTC (Real-Time Clock),Pedometer,Calorie Counter,Distance Counter,Sleep Monitor,Call Reminder,Message reminder,Anti-Lost,Cell Phone Camera Remote Control,Heart rate detection, Blood pressure detection,IP67.Manufa..