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The UHD version is Pantone “validated” to ensure accurate colour. Indeed, the display has a Delta-E of less than two. At the launch, ASUS used a test instrument to demonstrate (after a couple of wobbles, which may have related to the test device pointing in the wrong direction) that the Delta-E of the demo unit was a mere 0.97.

Delta-E?

Um, Delta-E? What is that? Well, how do you tell if a colour displayed on a screen is different to the original? You can measure it to the nth degree. But that won’t really be helpful. What you typically want to know is whether a human can see the difference. If one shade of violet is measurably different from another shade, but a person can’t detect the difference, does it matter?

ASUS ZenBook Pro
Adjust the ScreenPad settings on, of course, the ScreenPad itself

Delta-E measures the differences between two colours using remarkably Pythagorean-looking things like square roots of summed squares of colour-space co-ordinates. ASUS reckons that a value of two or less for Delta-E means that the colours are indistinguishable. While I’m pretending some expertise on this issue, I’m largely relying on Wikipedia when I assert that studies suggest that the matter is a little trickier than that, since some colours are inherently more distinguishable to the human eye than others.

Oh, but let’s get real. Some Golden Eye viewers may be able, with careful study, to pick correctly between two colours with a Delta-E slightly less than 2. You? Me? I don’t know about you, but as for me: I doubt it. Back in the olden day’s colours were all over the place. That something coded as red displayed as red was, for regular folk, good enough. These days something coded a specific Pantone shade of red will appear on the displays of the new ASUS ZenBook Pro computers as that specific Pantone shade of red.

Also, to (effectively) perfect colour accuracy on its own display, the ASUS ZenBook Pro supports up to three external 4K displays thanks to the two USB Type-C/Thunderbolt 3 ports. (If you’re counting, that makes up to five displays in total, including the ScreenPad.)

Processors, and such

Options include

  • Intel Core i9-8950HK, i7-8750HQ and i5-8300HQ
  • Up to 16GB of DDR4 2400MHz RAM
  • 500GB or 1TB of PCIe NVMe M.2 SSD and 250 or 500GB of SATA3 M.2 SSD.
  • NVIDIA GeForce GTX1050/Ti with 4GB of GDDR5 memory
  • Wi-Fi AC 2×2 dual-band; Bluetooth 5.0;
  • Two Thunderbolt 3 ports, two USB 3.1 ports, HDMI, SD card slot and analogue headphone/microphone port.

The computer weighs 1.88 kilograms. It has ASUS’s distinctive “spun metal” etched surface.

One last note: the keyboard felt right to my hands and fingers. No mal-proportions with this one.

The ASUS ZenBook Pro will be available in Australia from the middle of July, with prices starting at $2999.

The writer attended the launch of the ROG Phone in Taipei as a guest of ASUS.