Whether you’re trading in your old iPhone for a discount on a new one, selling it, giving it away, or recycling it, you’re going to want to erase all of your data first. Not only do you want to keep personal information from falling into the wrong hands, but let’s face it: nobody’s going to want a phone with your old selfies on it.
After you’ve transferred all of your data to a new phone (or, if you’re not getting a new phone, backed your data up), here’s how to wipe your iPhone:
Update September 15th, 2021, 3PM ET: This article was originally published on April 13th, 2020, and has been updated to add more info and account for changes in the OS.