https://www.techradar.com/news/samsung-galaxy-s9-has-the-worlds-best-display

The Samsung Galaxy S9 is the best OLED display ever made, according to DisplayMate’s rigorous testing, earning the highest score achievable. Despite running at the same 2,960 x 1,440 resolution as its predecessor, the Samsung Galaxy S8, a number of improvements have been made to the new device.

Most notable among the screen’s many highlights is its improved color accuracy. DisplayMate lauds the S9’s support and high level of execution of multiple color gamut standards, like DCI-P3, RGB and sRGB, and has awarded Samsung with a rating of “Visually Indistinguishable from Perfect” in this department.