According to DisplayMate, the iPhone X has the highest color accuracy of any smartphone display, the highest full-screen brightness for OLED smartphones, the highest full-screen contrast rating in ambient light, the highest contrast ratio, the lowest screen reflectance, and the smallest brightness variation with viewing angle changes.
All of these earned the iPhone X’s display the highest grade DisplayMate has ever awarded to any smartphone display, A+.
Samsung’s Galaxy Note 8 flagship has also gotten the A+ grade in a recent test, and it’s better than the iPhone X’s screen in some aspects, such as higher screen brightness for small portions of the screen area, but the iPhone X is the better screen overall.
It’s worth noting that both the iPhone X’s and the Note 8‘s displays were built by Samsung Display. It’s Apple’s display calibration, however, that makes the iPhone X’s display just a bit better than the best displays in Samsung’s own phones. In fact, the iPhone X’s is so color accurate that it’s better, in that regard, than any other display DisplayMate has ever tested, including monitors and TVs.