The next leap forward in mobile screen technology.
I think apple will hit the high refresh rate iPhone screens with technology they pioneered in the Apple Watch 5. Variable refresh rate
In order to maintain good battery life and even increase it over todays models, the screen will have the ability to run at minimal Htz while nothing on the screen is being refreshed and then ramp up to 120htz during the classic “scroll” interaction we so while reading on our phones.
Videos will assess the frame rate and match the refresh rate accordingly as well as gaming
This to me is the next major leap forward for mobile screen technology and would be the most efficient approach to screen refreshing.