A few days before I'll plug the phone into iTunes and do a backup. New phone, it copies everything over when I select it as my new phone. When it's done plug old phone in and wipe it to a factory fresh phone with nothing on it. Take pictures of it with new phone, place in box, sell for same amount as I just paid, so $0 out of pocket at the end. I've never paid a dime for an iPhone. First one was free and I've always broke even in sales. Great roi. Work pays most of my monthly so my end is $35 a month with a new phone every two years. Wasting lots of money on smart phones isn't my cup of tea. More pressing and important things in life.