https://wccftech.com/iphone-12-4k-120fps-video-recording-support-ios-14-beta-1-leak/

Back in 2017, the iPhone 8, iPhone 8 Plus, and the iPhone X were the first-ever smartphones to provide 4K 60FPS video recording support. Once more, Apple is looking to be the first in the same department, but with the framerate increased considerably. According to one tipster, who has apparently found info in the iOS 14 Beta 1 filesystem, the upcoming iPhone 12 series will get 4K 120FPS native video recording support. That’s not the only feature you’re getting, and we’ll be talking more about this in profound detail.

Where Apple’s competitors are providing 8K 30FPS video recording support in their flagships, the iPhone 12 launch might take things in a different direction. According to Twitter user Pine, who has collaborated with YouTube channel EverythingApplePro, the upcoming iPhone 12 series might get 4K 120FPS native video recording support. He also states that there might be an option for 4K 240FPS recording, but that might be limited to the slow-motion category.