https://wccftech.com/apple-iphone-11-pro-display-oled/

Forced by poor upgrade cycles, Apple made a new addition to the iPhone lineup last year. The iPhone XR, with an LCD display, mirrored the larger iPhone XS and iPhone XS Max design-wise, but it lacked in the camera sensor and RAM department. This year Apple has chosen to stay the course with an affordable iPhone, and with the iPhone 11, the trick finally seems to be working.

The iPhones 11 Pro differ from the iPhone 11 through the simple additions of an ultra-wide-angle lens and an OLED display. The two components give their display output and photography a big boost. When this boost is combined with the tailor-made A13 chip, it justifies the price difference between the highest-end iPhone 11 and the base iPhone 11 Pro.