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Tessellate Flux 27 review: accurate colour with nothing to set up

A 4K panel that measures well straight out of the box, plus 96 W of power delivery. The compromises are all in the software you will never open.

2 min read
8.5 out of 10 — Strong buy

The verdict

Best Value

Strong buy

Recommended without caveats for most people.

Out of the box the Flux 27 measures an average colour error of 1.3, which is better than most monitors manage after a calibration pass, and it does it at $649 with a 96 W USB-C connection and a stand that moves in every axis. The on-screen menu is dreadful and the speakers should not exist. Neither matters, because a monitor is a panel and a hub, and both of those are excellent.

Buy it if
You want accurate colour and one cable to your laptop, without owning a colorimeter.
Skip it if
You need HDR that means anything, or you play competitive games above 120 Hz.

Tested for six weeks as a primary display, plus a full calibration workup. Bought at retail with our own money. How we test

Pros and cons

Pros

  • Genuinely accurate without profiling, which almost nothing at this price is
  • 96 W of USB-C power runs a 14-inch laptop with headroom
  • Stand adjusts in every axis, including pivot to portrait
  • 2.5 gigabit Ethernet built into the hub

Cons

  • HDR certification is meaningless at this brightness
  • The on-screen menu is genuinely difficult to navigate
  • Built-in speakers are worse than a laptop's
  • Firmware updates require a Windows-only utility

Monitor reviews spend a lot of words on features and very few on the only thing that distinguishes a good panel from an average one, which is whether the colour it shows you is the colour in the file.

1.3
Average colour error, out of box

Below 2 is professional grade

1780:1
Measured contrast
96W
USB-C power delivery

Out of the box

We profile every monitor twice: once as it arrives in its default mode, and once after a full calibration. The first number is the one that matters for almost everybody, because almost nobody owns a colorimeter.

On the bench
TestResultClass average
Average colour error, default1.33.4
Maximum colour error, default2.66.1
Average error after profiling0.71.1
White point, default6540 K7180 K
Gamma tracking2.212.34
Uniformity, corner to centre8%13%

X-Rite i1Display Pro, 24 patches, sRGB target, default picture mode, after 30 minutes of warm-up. Reference is the mean of seven 27-inch 4K IPS monitors between $500 and $800.

An average error of 1.3 is the sort of figure that used to require a monitor with a factory calibration report and a four-figure price. Tessellate ships one in the box, per-unit, and ours matched it.

Contrast, brightness, and the HDR claim

1780:1 measured contrast is good for IPS and nowhere near OLED. 428 nits full-field is bright enough for a room with windows and not bright enough for direct sun.

The HDR certification on the box is the lowest tier available and means nothing at this brightness. There is no local dimming, so enabling HDR raises the black level across the whole panel and makes everything worse. Leave it off.

The hub, which is the underrated part

96 W of power delivery, four USB ports, and 2.5 gigabit Ethernet, all live on both the USB-C and the DisplayPort inputs — the second half of that sentence is the unusual one. Plenty of monitors have a hub that only works when the video is coming over USB-C.

With a Meridian 14 attached this is genuinely one cable: power, display, network, keyboard, and an external drive.

The menu

A four-way stick under the bottom bezel, six levels of hierarchy, and icons without labels. Changing input takes five presses and we never learned the sequence. It is the clearest possible illustration of where Tessellate spends money and where it does not.

The verdict

The best monitor under $700 we have measured, provided you never need to open the menu. Turn HDR off, ignore the speakers, and enjoy a panel that is right the first time you switch it on.

How it scored

Weighted average of 6 criteria

  • Colour accuracy9.4

    1.3 average error out of the box, 0.7 after profiling.

  • Panel quality8.6

    1780:1 contrast and 428 nits, both good for IPS.

  • Connectivity9.0

    96 W USB-C, 2.5 GbE, and a four-port hub that works on both inputs.

  • Ergonomics8.8

    Height, tilt, swivel, and a full 90 degree pivot.

  • HDR4.5

    Certified, and functionally decorative. 428 nits is not HDR.

  • On-screen menu5.0

    A four-way stick, six levels deep, with no labels.

Overall8.5/10

Specifications

Panel

Panel specifications
Size and type27 in IPS Black
Resolution3840 x 2160
Refresh120 Hz
Contrast, measured1780:1
Brightness, measured428 nits

Colour

Colour specifications
sRGB coverage100%
DCI-P3 coverage96%
Out-of-box accuracy1.3 average error

Connectivity

Connectivity specifications
Inputs2 HDMI 2.1, DisplayPort 1.4, USB-C
USB-C power delivery96 W
Hub3 USB-A, 1 USB-C, 2.5 GbE

Where to buy the Flux 27

We earn a commission when you buy through these links. It never changes what we recommend, and we buy every unit we test. How we stay independent.

Filed under

Who tested it

Marcus Oyelaran

Lead reviewer, computing

Nine years of shipping laptops back to manufacturers with the battery report attached. Cares more about sustained clocks than peak ones.

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