How to back up your iPhone, iPad and iPod touch with your Mac
If you back up your iPhone, iPad or iPod touch, you’ll have a copy of your information to use in case your device is ever replaced, lost or damaged.
Back up with the Finder
- On a Mac running macOS Catalina or later, open a Finder window. 
- Connect your device to your computer with a USB cable. 
- If asked for your device passcode or to Trust This Computer, follow the onscreen steps. Get help if you’ve forgotten your passcode. 
- If you want to save Health and Activity data from your device or Apple Watch, you’ll need to encrypt your backup. Tick the Encrypt local backup box and create a password. You can't recover your backup without this password. 
- Click Back Up Now.  
When the process has finished, you can see if the backup has completed successfully. You’ll see the date and time of your last backup.
