Device model: ID 115PLUS heart rate braceletCompatible system: IOS7.1 and above, Android4.4 and aboveMain functions: heart rate monitoring, step counting, calorie burning, distance, RTC display, automatic sleep monitoring, call reminder, information push, alarm reminder, anti-lost, remote control, etc.Waterproof and dustproof: sweatproof, rainproof, splashproofDisplay screen size 0.96 inchesScreen type: OLEDConnection parameters: Bluetooth Low-power Bluetooth 4.0 synchronizationOther parameters: appearance material TPEProduct size: Main body: 43x18x12mmStrap: 245x20x12.8mmProduct net weight: 28gProduct color: black, red, purple, blue, greenOther features: touch screen: full touch screenControl mode: button switchData Storage: Record 7 days of detailed exercise dataBattery type: polymer lithium batteryLife time: 5-10 daysCharging method: USB charging