Both Android cell phones and iPhones don't highlight an obvious method for sorting out the date when your gadget was initiated. In any case, assuming you have never reset or eliminated your Google record or Apple ID from your phone, it shows whenever you first endorsed it (for Android) and when it was last reset (for iPhone).  On Android, go to the Google segment from Settings then Manage Google Account, and then the Security option tap on your gadget to see the main endorsed date. Concerning iPhones, send off Settings and go to Cell to take a look at the last reset date. On the off chance that you never played out a reset, that date shows when the iPhone was initiated.