Backup of iPhone 13

You can mainly backup Photos, Contacts and Calendars. I don't think you can backup much on it.

You can use Google Drive to back up content on your iPhone and iCloud account.

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Start your backup

1. On your iPhone, install and open the Google Drive app.
2. In the top left, tap Menu .
3. At the top, tap Settings. Backup.
4. Tap Start backup.

Back up iPhone data with Google Drive