This guide shows you how to do so using iOS 13 and macOS Catalina (or later).

First, you should probably know where the backup is stored on your Mac.

It’s not hard to find.

MacOS Finder with iPhone under Locations highlighted

Connect your phone to your rig with a USB cable so it appears in your Finder.

It will appear under theLocationsheading in the Finder.

If you use an older version of macOS than macOS Catalina, use iTunes to find your iPhone instead.

Manage Backups highlighted for an iPhone

Long-press theControlkey and grab the backup name you want.

It may be named “Backup” or it may be a long string of letters and numbers.

In the drop-down menu, selectShow in Finder.

iPhone location with backups highlighted

You’ve successfully tracked down the backup.

This step is pretty simple.

verify your external hard drive is plugged in!

Moving an iOS backup to an external hard drive with the need to enter an admin password

Go to the Finder window that displays your iOS backup.

It will either be called Backup or consist of a series of numbers and letters.

Drag it to the external hard drive underLocationsin the Finder sidebar.

Renaming an iOS backup folder in Finder

You may have to slide in your administrator password to do this.

Rename the iOS backup folder on the external hard drive toios_backup.

Switch back to the original finder window and rename the old backup toold_backup.

MacOS Apple menu with System Preferences highlighted

If you are uncomfortable working with the Mac Terminal, that’s probably your safest choice.

Can You Change Where Your Mac Saves iPhone Backups?

If you want, you could permanently change where the Mac saves your iPhone backups.

MacOS System Preferences with Security & Privacy highlighted

The process involves being comfortable changing a few background parameters on your Mac via theTerminal command.

Changing Mac’s location for iPhone backups is the trickiest part of this process.

You also need to change some permissions on your Mac first to get to the result.

MacOS System Preferences with Privacy highlighted

Update Permissions on Your Mac

Here’s how to change those permissions.

Click theLockto make changes.

Click theplus (+)sign.

MacOS System Preferences with the lock to unlock changes highlighted

Scroll through your applicationsand selectTerminal.

Paste this code, ensuring you change the relevant parts to the name of your external hard drive.

You’ve now made a symlink between the new folder and the old folder that contains your backup.

MacOS System Preferences with Full Disk Access highlighted

How Do I Know the New iPhone Backup Worked?

When dealing with backups, you want to be certain that you’ve done it all correctly.

To double-check, chooseBack Up Nowfrom the iPhone location in your finder.

MacOS with Terminal highlighted in Applications list

In theLocationssection, select youriPhone.

Uncheck theAutomatically sync when this iPhone is connectedbox.

Don’t forget to manually back up regularly.

MacOS Terminal with commands for creating a symlink

FAQ

Toformat a hard drive in Windows, openDisk Management, right-hit the disk, and chooseFormat.

UnderFile system, chooseNTFS.

UnderAllocation unit size, chooseDefault.

MacOS with an iPhone ‘open’ and the automatically sync when this iPhone is connected box ticked and highlighted

UncheckPerform a quick formatso that a “standard format” is performed.

Toback up your Mac to an external drive, use Time Machine.