The Finder and iTunes save backups to a Backup folder. The location of the Backup folder varies by operating system. Though you can copy the Backup folder, you should never move it to a different folder, external drive, or network drive.
Don't edit, relocate, rename, or extract content from your backup files. For example, to restore from a relocated backup file, you need to move the backup file back to where it was in the Backup folder or the file won't work. Backups serve as a safe copy of almost all of your device's data and settings. So while you might be able to view or access a backup file's contents, the contents usually aren't stored in a format that you can read.
To find a list of your backups:
Click the magnifier in the menu bar.
Type or copy and paste this: ~/Library/Application Support/MobileSync/Backup/
Press Return.
Select the Backup folder under Folders.
Find a specific backup
On a Mac with macOS Catalina or later:
Open the Finder. Click your device.
Under the General tab, click Manage Backups to see a list of your backups. From here, right-click on the backup that you want, then choose Show in Finder, or select Delete or Archive.
Click OK when you're finished.
On a Mac with macOS Mojave or earlier, or on a PC:
Open iTunes. Click your device.
Choose Preferences, then click Devices. From here, right-click on the backup that you want, then choose Show in Finder, or select Delete or Archive.
Click OK when you're finished.