Instruction manual 21-20401) The adaptation platform requirements.Android 5.0 and above support IOS 9.0and above supportBluetooth BT4.02) Preparation before useFor the first time, please make sure that the Smart Bracelet is fully charged. Ifthe device cannot be turned on, please charge the Smart Bracelet first.3) APP download method.You can download the Android app by search "HryFine"in the app market or scan the QR code,and the IOS version can download by scan the QRcode.4) Pairing your device. Press and hold the Smart Bracelet touch button to turn on the Device,please make sure the phone is Bluetooth enabled (Android needs to turnon GPS). Open "APP" on the mobile phone - click the button on the front page, or goto the device interface to search for the device. After searching for thedevice, select the MAC string that matches the Smart Bracelet.