The fact that you don't need to upgrade your phone doesn't mean that progress should halt until that time.
My comment was a bit of a joke, cause of course the latest iPhone is better than my X.
So if you're reading a news article it will drop the frame rate to preserve battery when the screen isn't moving but will boost it up whenever you start scrolling.
It essentially allows you to dial in your individual preferences and have them applied to all the images you shoot.
How are you finding the iPhone after android? The most significant design difference is the camera.
The iPhone 13's notch is 20% smaller than it was on the iPhone 12.