Gmail

We all have gmail account. Without gmail we can't do normal to core function in android phones. So while we are making gmail account we must put our current phone number and extra gmail for future recovery if you forgot your gmail password.And you can also write that gmail and password in a safe place. It is because you might be hacked by other. Most of our data are store in our gmail. If you are going to sell your phone you must delete your gmail account or you must reset your phone. This help you from hacked.