DisplayMate really knows their stuff. They are the go-to site for a detailed take on any display technology. As they do with every new major smartphone release, DisplayMate ran their tests on the iPhone XS Max OLED display.

In a nutshell, the iPhone XS Max display just crushed it.

Here are a few comments from the analysis:

The Absolute Color Accuracy of the iPhone XS Max is Truly Impressive as shown in these Figures. It has an Absolute Color Accuracy of 0.8 JNCD (Just Noticeable Color Difference) for the sRGB / Red.709 Color Gamut that is used for most current consumer content, and 0.8 JNCD for the Wider DCI-P3 Color Gamut that is used for 4K UHD TVs and Digital Cinema, which are both Visually Indistinguishable From Perfect, and very likely considerably better than any mobile display, monitor, TV or UHD TV that you have.

The figures are in the Automatic Color Management section of the report. I do love the phrase “Visually Indistinguishable From Perfect”.

Mobile displays are often used under relatively bright ambient lighting, which washes out the image color saturation and contrast, reducing picture quality and making it harder to view or read the screen. To be usable in high ambient light a display needs a dual combination of high Screen Brightness and low Screen Reflectance – the iPhone XS Max has both. This is extremely important for screen readability, picture quality, and color accuracy in ambient light.

And:

The iPhone XS Max has a Record high calibrated 100% APL Full Screen Brightness for OLED Smartphones

And:

The measured iPhone XS Max Screen Reflectance is 4.7 percent, close to the lowest that we have ever measured for a Smartphone.

I could go on and on, but you get the idea. This is one impressive display.