The Liquid Retina Display

Apple offers some of the best displays on the market, and the iPad Pro is arguably their best display available. What Apple calls a Liquid Retina display is a 264 pixel-per-inch masterpiece. The 11-inch model we are reviewing holds a 2388x1668 7:5 aspect ratio panel, while the larger 12.9-inch model uses a 4:3 2732x2048 panel.

There’s a lot that sets Apple apart from other manufacturers on the market. The company has taken display accuracy seriously longer than anyone outside of the professional field. The display in the iPad Pro is also a P3 D65 gamut display, but thanks to the color management system that Apple moved over from the Mac, it simultaneous offers near-perfect sRGB reproduction as well as near-perfect P3 reproduction whenever an app or image specifically says it's P3. There’s no compromise on offering the P3, and no need to change the gamut on the display to match different color spaces. It’s a P3 display where sRGB is properly mapped.

In addition, Apple’s iPad Pro offers their ProMotion technology, which means it is a 120 Hz display, but one that supports variable refresh rates in order to lower the display's refresh rate for power management purposes. The iPad Pro will go as low as 24 Hz, presumably chosen to match the framerate of most movies. Apple also carries over its True Tone functionality, where ambient light sensors change the white point of the display to make it more suited to the environment it is in. It’s one of those features you never really knew you needed until you see it in action.

The fully laminated display also offers Apple’s industry leading antireflective coating, which Apple rates at 1.8% reflectivity, improving the results outdoors dramatically over most devices, and of course there is a fingerprint-resistant oleophobic coating as well.

Apple rates the latest iPads at up to 600 nits of brightness too, so pretty much no matter where you are, the combination of the high brightness and the antireflective coating should make for a great viewing experience.

To test the display characteristics, we turn to SpectraCal’s CalMAN software suite, along with an X-Rite i1Display Pro colorimeter for brightness and contrast readings, and the X-Rite i1Pro 2 spectrophotometer for color accuracy readings.

Brightness and Contrast

Display - Max Brightness

Display - Black Levels

Display - Contrast Ratio

Under our test conditions the iPad Pro could not quite hit the 600 nits that Apple advertises, but at 500 nits it is still plenty bright. Couple that with the excellent contrast ratio of almost 1800:1, and things are off to a good start.

Grayscale


SpectraCal CalMAN

Display - Grayscale Accuracy

The average dE2000 of 1.43 is a fantastic result, but the gamma isn’t quite perfect, dropping off near 100% because the display was slightly too bright. Unfortunately, the red results were quite low throughout the entire range leading to a slightly cooler display white point, but this is all quite minor.

Gamut

First let’s take a look at sRGB:


SpectraCal CalMAN

Display - Gamut Accuracy

As you can see, the sRGB values are almost perfectly mapped into the P3 D65 gamut, and the average error level of just over 1.09 is simply fantastic. All of the primary and secondary values are close to perfect, except red which was a bit low at 100% red, as we saw in the grayscale results.

Next up, P3 D65:


SpectraCal CalMAN

As with the sRGB results, the P3 D65 gamut is also almost perfect. The beauty of color management means that there’s no work for the user to get the benefit of both P3 and sRGB.

Saturation

SpectraCal CalMAN

Display - Saturation Accuracy

The saturation sweep was run in sRGB, and as you can see from the graphs, all along all of the primary and secondary colors the error level is basically imperceptible to the human eye.

Gretag Macbeth


SpectraCal CalMAN

Display - GMB Accuracy

Finally, the Gretag Macbeth test is a more comprehensive test, hitting colors outside of the primary and secondary colors, including the important skin tones. The error level is practically perfect, with no single color even hitting an error level of 2.0.

Display Conclusion

The iPad Pro simply offers one of the best displays on any electronic device. Color accuracy is superb, in both the P3 and sRGB gamuts, and thanks to iOS supporting full color management, customers don’t have to worry about if they are working on a P3 or sRGB image. The addition of True Tone makes for an incredibly pleasing white point in pretty much any situation, and the 120 Hz display refresh rate makes for smooth scrolling, while stepping down to lower refresh rates to conserve power when the display is static.

GPU Performance Battery Life and Charge Time
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  • melgross - Tuesday, December 4, 2018 - link

    I find Affinity Photo to be clumsy. It’s pretty buggy in some areas too. There are a number of pretty good photo apps for iOS though, in addition to Photo. I like Enlight and Lightroom CC as well.
  • The Garden Variety - Wednesday, December 5, 2018 - link

    I've never understood all the obsequious praise for Affinity Photo, and all the Affinity apps, really. They're unbelievably buggy, the company that produces them, Serif, is constantly on the edge of financial failure, they've missed every single one of their publicly stated development deadlines, and their tech/customer support is basically non-existent. Their user forums are this uncomfortable mix of people praising them like the second coming of their lord and savior, or complaining bitterly about the most ridiculously basic features for these classes of software being missing or broken.

    This is the "Adobe killer" everyone keeps crowing about? Please. They'll be dead and buried inside of five years. Meanwhile, Adobe will hum along printing money.
  • ChrisH362 - Tuesday, December 4, 2018 - link

    In the article, you mentioned “A more telling test, perhaps, will be once Adobe has ported over the full-fat version of Photoshop to the iPad, which is expected next year.” Instead of waiting on Adobe, why not use Affinity Photo from Serif? They have working versions for iPad, Mac, and Windows and works just as well if not better than Photoshop.
  • id4andrei - Tuesday, December 4, 2018 - link

    Since APIs and shader precision are different or obfuscated at times, how is this an apples to apples comparison? The same game might run different resources on ios compared to its windows versions. FP16 will always be faster than FP32 especially on custom built hardware for it.
  • tipoo - Tuesday, December 4, 2018 - link

    I think it's still a worthy comparison, because the MX150 and 1060 can't use double rate FP16, so it's tailoring to the strenghts of what all of them can do.

    Landing so close to the 1060 is eye popping with almost no cooling. I can't wait to see these in clamshells with fans.
  • KPOM - Tuesday, December 4, 2018 - link

    Could you post charging times using a standard 60W USB-PD charger, to take chargers out of the equation? That would be helpful to know.
  • tipoo - Tuesday, December 4, 2018 - link

    I'm not sure how to read the "peak" box in the corner of the GPU charts - are only the grey bar devices measured at peak?
  • Brett Howse - Tuesday, December 4, 2018 - link

    No it just means the scores are peak results and not sustained.
  • darkich - Tuesday, December 4, 2018 - link

    Well at this point I guess I can safely say I am disappointed by Andrei's methodology and conclusions regarding performance comparisons.

    He's missing the FACT that iPad Pro is shown to be FAR faster than any laptop shown here in the actual real life performance (4K video editing).
    It will render the same material in the same way, much faster.

    How is that not a legit and clear absolute performance metric??
  • darkich - Tuesday, December 4, 2018 - link

    ..on a side note, NONE of this ultimately matters for one simple reason - the build quality, I.e. structural integrity.

    The iPad Pro is a POS that should be recalled.
    A tablet that one can *easily* snap in half with bare hands, is not a legitimate product.

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