By default, Apple backs up your device data over Wi-Fi networks, but you can also use your iPhone’s cellular data to back up content to your iCloud storage. This is useful for users whose cellular data is faster than the Wi-Fi network they’re connected to, as it can significantly reduce the duration of backups.
iPhone 13/13 Pro: Enable or disable iCloud backup over mobile network
In this post, we'll explain how to enable iCloud backup over cellular data on your iPhone.
Related: How to Backup Your iPhone Without iTunes
You can only back up your iPhone to iCloud over cellular data if you meet the following requirements: