MULTIFUNCTION: - Pedometer: Steps,Calories,Distance - Heart Rate Monitor - Sleep Tracker - Sport Modes - Remote Camera HARDWARE: APP: LuckRing, No Subscription Fee Bluetooth: 5.4 Charging Type: Magnetic Charging Ring Battery Capacity: 15mAh Compatibility: Smartphone iOS 12.0 or above, Android 8.0 or above NOTES: - IP68 Waterproof, suit for swimming - DO NOT suitable for hot water Packing: - 1* Smart Ring - 1* Charging Cable for Ring - 1* User Manual Any questions,please kindly contact us,we would always offer best solution to you.