The Mini 6 has Apples Liquid Retina display, which is the same as the Iphone XR/11, Ipad Pro 2018 onwards (minus 120 hz) and Ipad Air 4. Its the best LCD tech they have developed, so it is slightly better in colour reproduction and contrast than the P3 LCD retina screens in the Iphone 7 and 8, Mini 5 and Air 3 for example.