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Uncalibrated – Maximum Backlight Level
With its Uniform Brightness feature, the XG32UCWMG is essentially two monitors in the brightness test. For SDR productivity, I leave this option on, which renders a peak value around 277 nits. When it’s turned off, a 25% window measures 451.8771 nits. This will render brighter highlights, which is great for gaming and video content. Black levels and contrast cannot be measured.
After Calibration to 200 nits
I set the white level to 200 nits with Uniform Brightness turned on. This doesn’t change black levels or contrast, which are still unmeasurable. The same is true for the ANSI checkerboard pattern, which measures intra-image contrast. This is typical OLED performance, which, in my experience, has been the same from model to model.
Test Takeaway: The XG32UCWMG has the same unmeasurable black levels and contrast of any OLED, but stands out with its Uniform Brightness option. Toggling it off delivers brighter highlights, which are good for gaming and video. Turning it on makes the monitor more suitable for productivity. Not all OLEDs include this option.
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