DisplayMate came out with a full review of the Google Pixel 4 XL's notch-less 90Hz OLED screen and the results are great. Surely, it's not the first phone with a great OLED panel but it sets a few benchmarks for its rivals to reach. For starters, DisplayMate says it has the highest absolute color accuracy on a smartphone with 0.5 JNCD, which is virtually indistinguishable from perfect. It also has the highest image contrast accuracy and intensity scale accuracy. Moreover, the phone's display brightness is independent of the image content and it adjusts to the proper color gamut to...
Source: https://www.gsmarena.com/displaymate_google_pixel_4_xls_display_is_perfectly_calibrated-news-39662.php