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To read about our monitor tests in-depth, please check out Display Testing Explained: How We Test PC Monitors. We cover brightness and contrast testing on page two.
Uncalibrated – Maximum Backlight Level
The FO27Q2’s peak brightness depends on your choice of APL Stabilize setting. Aorus rates it for 250 nits showing a full field and I was able to hit that at all settings in the Standard picture mode. To gauge true performance, I always measure 25% windows with the variable brightness engaged. In this case, I set APL Stabilize to High and recorded 454 nits which is typical of most OLEDs in the category. Of the bottom two screens, the AOC has no variable brightness feature and the ViewSonic is less aggressive than the rest. As usual, black levels cannot be measured so neither too can contrast.
After Calibration to 200 nits
Calibration changes nothing in the contrast test, it’s still infinite. I preferred the FO27Q2 set to APL Stabilize High, so I used the second set of brightness values above to set my peak at 200 nits using a 25% window. Black levels are unchanged, so contrast remains unmeasurable for all the screens.
Test Takeaway: The FO27Q2 delivers the same consistent contrast performance as its competitors. You get three variable brightness levels which is more than some that either don’t have the feature or make it simple on or off. You can dial in the picture to your taste and room environment very easily. And it will always look stunning.
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