If you have an iPhone 14 or later, you’ll see these green and orange dots inside the Dynamic Island. If you have an iPhone ...

On iPhones older than the iPhone X, swipe up from the bottom of the screen. Once the recording starts, the button will turn red. If you have Dynamic Island, you'll also see a red dot there.

if you have the iPhone 14 Pro or later, in Dynamic Island. Once the recording starts, the button will turn red. If you have Dynamic Island, you'll also see a red dot there. Otherwise, there'll be ...