The materials of mobile phone screens are mainly divided into two types: LCD and OLED. Some friends like the LCD screen, and some friends like the Oled, Is the iPhone 13 screen OLED?

Yes, The iPhone 13 uses a 6.1 inch Super Retina XDR screen,and 28% increase in screen brightness , up to 800 nits and a peak brightness of 1200 nits. Grade IP68 dust and water proof,
The rear cameras are designed in a diagonal arrangement. Both iPhone 13 models feature rear dual 12-megapixel cameras. The main camera is a 12-megapixel f/1.6 camera with a 1.7um pixel size and a 1/1.7-inch outsole, which increases the light intake by 47%. The ultra-wide-angle lens (5P) is a 12-megapixel camera that supports sensor shift image stabilization.