iTunes backup generally includes most of the local data on your iPhone. iTunes backup saves video books and photos, messages, contacts, call logs, iPhone ...
Your iTunes backup includes: 1. Purchased music, apps, and books, 2. Photos and video in the Camera Roll, 3. Device settings (for example, Phone Favorites, Wallpaper, and Mail, Contacts, Calendar accounts) , 4.
iTunes backup includes most of the local data on your iPhone like photos, messages, contacts, call logs, iPhone settings, local files of apps, Keychain data, ...