Product parameters Screen: 1.28 inch Resolution: 240*240 Battery: 180Mah Screen Diagonal: 1.28" Waterproof grade: IP67 Heart rate: yes Pedometer: yes Calorie Counter: Yes Compatibility: Android 5. more→0 or IOS 9.0 and above Charging method: Magnetic charging APP: Super Band Bluetooth: BT5.0 System version: Android 5.0and above, Apple 9.0 and above Software function Answering/making phone calls, heart rate monitoring, blood pressure/oxygen ECG monitoring, sleep monitoring, exercise step/calorie consumption/exercise time/wechat exercise, call reminder and display, message push and display, remote control photography, music playing, multi-exercise mode, sedentary reminder, alarm clock