1.Open the bluetooth in the phone first and search the devices of the watch to connect. (the green bluetooth icon in the Upper left corner of the watch.) 2.Open the watch and choose the BT function to pair the phone back! (The bluetooth icon with half blue and green in the Upper left corner) Features 1.IP68 waterproof level for high water resistance for you watch.Keep the watch more saftey. 2.Straps can be replaced and 5 watch faces changing for enjoy your colorful life with the watch. 3.Health function for keeping your health life. 4.Watch strap can changing easily. Considerate Service: We provides worry-free 12-months warranty and free life-time technical support and professional after-sales for this smart watch. Please kindly contact us if there's any problem with the product, sure we'll solve it and provide excellent service for you! Useing tips: 1.Please charge the watch for no less than 2 hours before first use. 2.At the begining you should scan the QR code to install App. 3.We have 7 language for the smart watch and you can set up the language you want when open the watch at the first. 4.Support smartphone operation system :Android 5.0 or later ,ios 8.0 or later (requires iphone 5 or later) 5.When you use the function as a camera remote,your watch needs to be within normal Bluetooth range of your phone(about 33 feet or 10 meters) 6.When you use the BT music,please pay attention that the music only plays on your phone. 7.With IP68 water & dust protection, your watch may be wused for shallow-water activities like swimming in a pool. However, it should be not be used for diving,water skiing or other activies involving high -velocity water or hot bath, submersion in tea or any other corrosive liquid. Package: 1 x Smart watch screen 1 x Straps 1 x Charging Cable 1 x User Manual(7 language)