Color:Sliver How To Pair With Your Phone?a.Download and install "CT Fit" APP to your phoneb.Open CT Fit App, click Link iocn at Up right Corner to find your device and connec itc.Please make sure to turn on the GPS function before using APP paired with the cellphoneRequires : IOS 8.2 or above,Android 4.4 or above,not for PC and Tablet.Android users can download the APP by searching"CT Fit" through Google play;IOS users may download the APP by searching "CT Fit" through APP Store Notice First time paired with the watch via Bluetooth must use the App to connect(Link icon at App Up Right corner)❤Features about the fitness tracker: ♦1.54 Inch Screen:View your health data on a bright and clear 1.54 inch screen and customize your clock face that suits your taste♦Sport:5 sports tracking(Running,Mountain climbing,Ride a bike,Badminton,Playing Basketball，football Etc♦Battery: 220mAh battery, Standby Time: about 10 Days♦IP68Waterproof: Yes, Life Waterproof: can wash hand and in rain, but can not bath♦Sync Notification : Sync notifications for Facebook,Twitter,Wechat,WhatsApp,LinkedIn ect ♦Heart Rate Monitor:Monitor your heart rate accurately♦Pedometer: Monitor the steps, distance, calorie consumption♦Sleep monitor: Help to monitor your sleep quality♦Remind: To remind you have a rest,take medicine reminder,drinking water reminder,meeting reminder♦Remote control function:Remote control Camera♦Lighting up screen by truning wrist:You can set up on the APP and the screen is automatically lightened up when you turn your wrist towards you♦For both iOS and Andriod phone user please keep the APP software running on background in order to receive all notificationsWarm Tip:①Our tracker is only for reference before and after exercise, not for medical use,not for hypertension patients②Pls check if the phone matchs up the operating system before you purchase