If possible, I recommend keeping your old iPhone long enough to ensure that your health data has properly synced to your new iPhone. It's a lot of syncing data to carry over, after all. Sometimes, it takes a while for all of the data to show up. When you first sign in to iCloud after doing a clean install, you may not see all of your saved health data at first. If you start from scratch, you'll still lose other Apple Watch features, including custom watch faces, app organization, and the like. If you enable this feature and allow it to sync, you'll be able to do a "clean" install of future versions of iOS without losing your workouts, activity, and other information" - AKA not losing the bulk of your Apple Watch's synced data. On iOS 10 or earlier, all Health data (only Stored in iCloud backups and encrypted iTunes backups, and you can't restore selectively)Ĭlean install on iPhone: A special note on health dataįrom iOS 11 on, you have the option to sync your Health data to iCloud.Music synced from your Music library (not purchased music).
Photos not backed up to iCloud Photo Library or My Photo Stream.Wallet history (but not Apple Pay cards).Apple Maps favorites, guides, and recent searches.Safari bookmarks and passwords (if iCloud Keychain is enabled).Some music (All Apple Music content for subscribers otherwise, purchased music will be available for re-download from the Music app).
Records of your purchased apps and app data-no apps will download automatically, but you can go into App Store > Profile > Purchased to restore them on an app-by-app basis.iCloud email (other accounts you'll have to manually re-add in the Settings app).Photos (either the last 1000 or, if you have iCloud Photo Library enabled, your entire library).When you log in with your iCloud account when setting up as new, this is what you retain:
Be sure to perform a full back up of your old iPhone no matter what, just to be sure you don't lose anything you might eventually think is worth carrying over. That is, assuming you've turned them on for your old iPhone before attempting to set up your new one. Thankfully, whether you're doing so because you have too many apps or you want to reconfigure your new iPhone or iPad, you won't lose too much information thanks to your iCloud account's syncing features. And while in my opinion, no one on iOS needs to do that sort of clean install for system health, there are still those that prefer it. Lots of people like the latter "clean install" option for new devices because it allows them a fresh start on setting up their apps, settings, and the like.