You can download iOS 18 beta on your iPhone right now. How to get it (and supported models)

You can navigate to your settings to install the iOS 18 developer beta if your device runs iOS 16.4 and is used with an Apple ID enrolled in the Apple Developer Program:

1. Go to your iPhone Setting
2. Knock on overview
3. Select Software updates
4. Go Update test
5. Select iOS 18 developer demo

If you don’t see this option, go ahead Setting, select Privacy & Protect, and activation Developer mode.