The Screen Record feature on an iPhone is located in the Control Center. Here’s how to find and use it:

• Swipe down from the top-right corner of the screen to open Control Center.
• Look for the Screen Recording button, which looks like a circle within another circle.
• If you don’t see the Screen Recording button, you need to add it:
  • Go to Settings > Control Center.
  • Scroll down to More Controls and tap the green plus (+) button next to Screen Recording to add it to included controls.
• To start recording, tap the Screen Recording button. After a 3-second countdown, the recording begins.
• To record audio along with the screen, press and hold the Screen Recording button in Control Center, then tap the microphone icon to enable the microphone before starting.
• To stop recording, tap the red status bar at the top of the screen and confirm to stop, or open Control Center again and tap the Screen Recording button.
• Your screen recordings are saved automatically in the Photos app, where you can view, edit, and share them.

This method applies to iPhones running iOS 11 and later, including the latest iOS 18 and iPhone 15 models