Alexander George at Popular Mechanics erases all content and settings on his iPhone once every few months. He doesn’t use a backup, transfer data, or build from the factory settings.
“Clearing out old apps or files, even if it’s just to re-download them, will help almost any device. But deleting is tedious. The trick is to do it all at once, with a clean wipe … your vital stuff will still be there. Modern cloud systems, as long as you have your password, will keep the stuff most of us really care about—your SIM card is your phone number, and as long as you have iCloud or Google Photos, copies of your photos and videos are safely stashed in a data center.”
Find out why George does this and how you can too at Popular Mechanics.