EFOSHM is USA exclusive brand.</br>JUST ANDROID system phone could supports all functions about this watch.Please download and install "Smart watch.apk"by scanning the QR code at manual into your smartphone ??and then watch will synchronize with smart phone for time??date??SMS??and messages ect from QQ??Wechat and other communication software.</br>Functions:Camera Remote Control??Anti-lost alarm??Barometer??Bluetooth Music??Pedometer??Altimeter??Stop-watch??Power save??Phonebook ??Dialer??Sports Messanges Calls Reminder</br>Anti-lost:The watch will alarm if the distance between watch and phone exceeds what we set??you could set the distance:NEAR??MID and FAR.</br>Pedometer:It is a good friend to tell your sports situation:how many steps you walk??how far you run.Hey!Guy??it is good monitor for health.</br></br>Product Description</br></br><b>Stop-watch</b>an excellent timekeeper <br> <br> <b>Phonebook</b> show up to 1??000 phone number. <br> <br> <b>Power save</b> Work for longer time after you start this function. <br> <br> <b>Barometer and Altimeter</b> show air pressure ??temperature and elevations. <br> <br> <b>Camera Remote