Product Functions:Heartrate monitor: Through the green LED，Irradiation on the skin to detect blood flow.BT Headset: Caller ID + removal answer， earmuffs models meet different needs of customers.Sport Pedometer: Record activity and calories burned throughout the dayto keep abreast of sports achievement.Sleep Monitor: Targeted to improve sleep quality by sleep monitoringSedentary Remind: Bracelet will remind you to go for activity in your set time.Find phone:Easily find the phone In the Bluetooth effective rangeProduct Specifications:Model No.:U mini U20CPU Type:MTK2502Dimension:46*22*9.2MMRAM:32MbitROM Flash:32MbitColor:GoldenMaterial:mainframe :metal;Strap:fine leatherScreen Size:0.66"Screen Resolution:64*48Screen Material:OledWeight:39gBattery:200mAhStandby Time:120HCall time:3HLanguage:Multi languageBluetooth:BT4.0Power:Micro UsbBracelet Usage Standard: Iphone 5 above��ios8 above��android 4.0 above��BT 3.0 above(99% mobiles of the market can be compatible)Certificate:ROHS，CEPacking List:1x Umini Bracelet Smart Watch1x USB Cable1x Magnetic Charger1x User Manual3x Earpad