MULTIFUNCTION: - Pedometer: Steps,Calories,Distance - Heart Rate Monitor - Blood Pressure Monitor - Sleep Tracker - Sport Modes - Gesture Control - Remote Camera HARDWARE: Free APP: ECTRI Bluetooth: 5.1 Charging Type: Magnetic Charging Ring Battery Capacity: 18mAh Compatibility: Smartphone iOS 11.0 or above, Android 6.0 or above NOTES: - Free App - no subscription fees - IP67 Waterproof - DO NOT suitable for hot water Packing: - 1* Smart Ring - 1* Charging Cable for Ring - 1* Charging Case - 1* User Manual Any questions,please kindly contact us,we would always offer best solution to you.