Explaining the benefits of faster refresh rate displays and 120Hz is difficult. It’s really one of those things you need to try out in the shop to get a feel for what it adds. 

All previous iPhones (and the iPhone 13) have included 60Hz panels, which means they attempt to refresh 60 times every second. But on the iPhone 13 and 13 Pro, the panel can now refresh up to 120Hz – or 120 times a second.
…
Read more