You can download iOS 18.1 on any iPhone that supports iOS 18 (full list below), but unfortunately, Apple Intelligence is exclusive to the iPhone 15 Pro, iPhone 15 Pro Max and the entire iPhone 16 series. You can still get your hands on other non-AI features though.
Here's the full list of iPhones that support iOS 18.1
iPhone SE (second generation and later)
iPhone XR
iPhone XS
iPhone XS Max
iPhone 11
iPhone 11 Pro
iPhone 11 Pro Max
iPhone 12
iPhone 12 Mini
iPhone 12 Pro
iPhone 12 Pro Max
iPhone 13
iPhone 13 Mini
iPhone 13 Pro
iPhone 13 Pro Max
iPhone 14
iPhone 14 Plus
iPhone 14 Pro
iPhone 14 Pro Max
iPhone 15
iPhone 15 Plus
iPhone 15 Pro
iPhone 15 Pro Max
iPhone 16
iPhone 16 Plus
iPhone 16 Pro
iPhone 16 Pro Max
Next, a warning...
A public beta is typically more stable than a developer beta, but it's still a beta, which means you may deal with bugs and other critical issues that could negatively affect your phone. If you have a spare iPhone in your drawer somewhere, use that to run any iOS 18.1 beta, whether it's the developer or public version.
In my personal experience, it's usually fine to run a public beta on your main phone. You may encounter a bug here and there, maybe a function in a third-party app doesn't work exactly as intended because it's not yet optimized for any iOS beta software. It's never crippling, just maybe a little bit annoying, and if you don't mind that, running the iOS 18.1 public beta on the iPhone you use every day shouldn't be a big deal.
Also, before you think of updating to iOS 18.1, first update to the latest iOS 18 version (currently 18.0) and then back up your device. Go to Settings > your name > iCloud > iCloud Backup and hit Back UpNow. You should check out our story on how to archive a backup on your computer in case you want to revert to iOS 18.
How to download the iOS 18.1 public beta on your iPhone
Now that you've backed up your phone, you can download the iOS 18.1 public beta. Here's what you need to do:
1. On your iPhone, go to the Apple Beta Software Program website and sign in (if you're already a member) or sign up for the program. You need an Apple ID of course. If you're signing up for the first time, follow the prompts.
2. Next, tap the iOS tab and you should see more information about the iOS 18.1 public beta.
3. Under Get Started, hit the blue enroll your iOS device link.
4. Now go to Settings > General > Software Update > Beta Updates and choose the iOS 18.1 public beta to install.
5. Finally, go to Settings > General > Software Update and install the iOS 18.1 public beta.
Once your phone reboots, you should be running the first iOS 18.1 public beta.
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