How can I update my iPhone to iOS 18?

iOS 18 is supported on the iPhone XR and later. If you qualify, go to Settings > General > Software Update and update to the latest iOS 18.2.1.

Also please view these articles along the way if needed.

Update your iPhone or iPad - Apple Support

If your iPhone or iPad won't update - Apple Support

Is your phone compatible with iOS 18? Make sure that the battery is fully charged and you have a good Wi-Fi connection.

Tap Settings > General > Software Update

If your phone is compatible with iOS 18, you will see an option to update your iPhone.

If you see a message that your phone is already up to date, then there are no more updates available for your phone.