Thankfully, the essential details of your backups are stored on your iPhone. So, you can directly check the date without external help.  

How to Check Last Backup on iPhone?

The easiest way to check your backup details on an iPhone is through the settings. Here’s how you can do it:

Delete or Turn Off iCloud Backup on iPhone

If you want to turn off backup without deleting your existing backups, follow the above steps to go to the iCloud Backup page. Then, turn off the option that says Back Up This iPhone. To delete and turn off iCloud backup for selected apps, follow these steps:

Why Is My iPhone Backup Failing?

If you’re having a hard time successfully backing up your iPhone data, here are a few things to consider: 

Make sure there’s enough space in your iCloud storage.  Update your iPhone to the latest iOS version.  Try signing in and out of your iCloud account.  Restore all your settings to default.

If you want a comprehensive guide on fixing a failed iPhone backup, you can check this article. How To Check Last Backup On IPhone  - 47How To Check Last Backup On IPhone  - 89How To Check Last Backup On IPhone  - 87How To Check Last Backup On IPhone  - 81How To Check Last Backup On IPhone  - 12