How to use cellular data for back up and software updates
How to use cellular data for backup and software updates
iPhone 7, iOS 14
Question marked as
See the following from Back up iPhone - Apple Support
Note: On models that support 5G, your carrier may give you the option to back up iPhone using your cellular network. Go to Settings > [your name] > iCloud > iCloud Backup, then turn on or off Backup Over Cellular.