It is compatible to devices having Bluetooth version 2.0 and below in smart phones, Tablets and PC’s and for (android phones V2.3).It has features such as calling function which enables you make a call and disconnect it ,you can also send and receive messages through it and also supports hands free call, Phonebook features and also you can Sync its history but only supported to android Phones for which you need to download app. Ringing Reminder, Anti –lost alarm to make you warn about where you phone is ,this feature is only activated when once you have sync your phone with the watch. It also supports taking Remote photo function that allows your mobile (only android) to take photo from the watch. It also has stopwatch feature, altitude meter to measure the altitude of any object above any fixed level, Barometer to measure atmospheric pressure. For the battery backup it has Charging Time Ability of 2hours, Talk Time: near to 3hours, Stand by Time of about 160 hours and music playing capacity of 6 hours.