Color:01 S7 Blue Waterproof Watch You can always come to us for free customer service at:https://www.amazon.com/seller/Jesamstore-Ask questionsMore watch choicehttps://www.amazon.com/shops/JesamstoreRECOMMEND:We recommend the following SIM cards when you use in USA:Speedtalk mobile(Powered by T-mobile), There are 2 type SIM from Speedtalk mobile1

Regular Phone SIM2

IoT device (for smartwatches), we've pre-install this APN,basically if you received the watch,activated the SIM,it should be working without another settings.NOT SUPPORTED: Sprint, Verizon,AT&T *T-mobile supported,but we can't be 100% your plan can work in our watch.How to Setup1.Activated the sim via your phone2.Insert the sim to watch3.Created a account in App "setracker",register as a *NORTH AMERICA User4.Send APN codes via your phone Message app to watchFor Speedtalk Regular Phonepw,123456,apn,wholesale,,,310260#5.Test in AppFor more details,please follow our user manual before you use.Note:- The GPS of the watch will be 1-4 miles error with the real position cause the different environmental,weather effects and the limited by GSM tech and GPS signal.- Unlocked for Worldwide use

Please ensure local area network is compatible with 2G Network

Please check with your carrier/provider before purchasing this item.- When you insert a SIM card, the watch needs to be turned off.Package includes:1 x smartwatch 1 x USB cable 1 x User manual