Backups on an iPhone refer to a duplicate of all the information, preferences, and content on your iPhone that is stored on either another device or a cloud service. Backups allow you to copy and save the information from your iPhone, iPad, or iPod touch, and if you replace your device, you can use a backup to transfer your data to the new device. There are different methods to back up your iPhone, including:

• iCloud Backup: This method allows you to back up your device wirelessly and automatically to iCloud. iCloud backups include information and settings stored on your device, but they do not include information already stored in iCloud such as Contacts, Calendars, Bookmarks, Notes, Reminders, Voice Memos, Messages in iCloud, iCloud Photos, and shared photos. To use iCloud Backup, you need to turn it on in Settings > [your name] > iCloud > iCloud Backup, connect your device to a power source and Wi-Fi network, and make sure that your devices screen is locked.

• iTunes Backup: This method allows you to back up your device to your computer using iTunes. A computer backup of your device includes almost all of your device's data and settings, but it doesn't include content from the iTunes and App Stores, content synced from Finder or iTunes, data already stored in iCloud, Face ID or Touch ID settings, and Apple Pay information. To use iTunes Backup, you need to connect your device to your computer, open iTunes, select your device, and click "Back Up Now".

• Third-Party Backup Solutions: There are also other backup solutions from third-party vendors, such as Acronis Cyber Protect Home Office, that provide a comprehensive and easy way to back up your iPhone to the cloud and your computer, back up multiple mobile devices, recover accidentally deleted files, and more.

It's important to note that when you're talking about backups, you need to have storage, so when you are backing up your iPhone, you need to make sure that you have enough available space in iCloud for the backup.