The new Pro models in the iPhone family pull even further ahead of their vanilla counterparts with a faster GPU, improved camera hardware and, most importantly, the first ProMotion display on an iPhone. The new iPhone 13 Pro and iPhone 13 Pro Max “ProMotion” is Apple speak for a high refresh rate display. On the iPhone 13 Pro and iPhone 13 Pro Max it can go as low as 10Hz and as high as 120Hz. iOS has been reworked to make the best use of the new display. The choice of display sizes is the same – a 6.1” iPhone 13 Pro or a 6.7” Pro Max. The notch that hosts the TrueDepth camera...
Source: https://www.gsmarena.com/iphone_13_pro_and_pro_max_have_120_hz_displays_3x_telephoto_cameras_1_tb_storage_option-news-50936.php