iOS 18 is set to be released later this year and will be available for download on iPhones newer than the iPhone XS. This means that if you are still using an iPhone XS, iPhone XR, iPhone SE (2020), or iPhone 11, you will still be able to enjoy some of the best features of iOS 18. However, due to the older chipsets in these models, there are some features that may not be available on these devices.

Here are some of the best features of iOS 18 that will work with your older iPhone:

1. Advanced Home Screen Customization: In iOS 18, you will have the ability to customize your Home Screen by repositioning apps, triggering dark mode for app icons, adding color tints, and hiding app names.

2. Upgrades to Messages: iOS 18 will bring upgrades to the Messages app, allowing you to react to messages using emojis, schedule messages to send later, format text with underlines and strikethroughs, and support the RCS standard for richer messaging.

3. Redesigned Control Center: The Control Center in iOS 18 will be separated into distinct function groups, resize widgets, and edit which widgets appear on your Lock Screen.

4. ID-Authenticated App Locks: You can add Face ID or password authentication to apps and hide them in a Hidden Apps folder for added security.

5. Apple Passwords App: iOS 18 will introduce Apple’s passwords app to help you manage your account credentials more conveniently.

On the other hand, there are some features of iOS 18 that will be restricted to newer iPhone models:

1. Messages via Satellite: This feature will only be available on the iPhone 14 series and upwards.

2. Audio Transcription in Notes: Automatic transcription in the Notes app will be reserved for the iPhone 12 and newer models.

3. Eye Tracking: This feature will require an iPhone 12 or later to work.

4. Music Haptics: Using the Taptic Engine to pulse in time with music will only be available on iPhone 12 and later models.

5. Wireless Smart Lock Opening: The ability to unlock doors with UWB smart lock will require an iPhone with a UWB transmitter, excluding older models like the iPhone XR and XS.

In conclusion, while older iPhone models will still be able to enjoy some of the best features of iOS 18, there are certain advanced features that will be limited to newer models. It’s always a good idea to check the compatibility of new software updates with your device to ensure you get the most out of your iPhone experience.