ASUS

ROG XG27UCDMG

Excellent 4K 240Hz QD-OLED gaming monitor with superb image quality and motion, but priced at a premium with limited HDR and modest SDR brightness.

Summed up from 8 published reviews

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What reviewers like

Superb 4K QD-OLED image with deep blacks 1 2 3 4
240Hz refresh, 0.03ms response, VRR support 1 2 3 4
Excellent factory color accuracy, sRGB/DCI-P3 coverage 1 2 4 5
Versatile connectivity: USB-C 90W PD, HDMI 2.1 1 2 4 5
Ergonomic stand with full adjustments, compact footprint 2 3 4 5

What they don't

Basic HDR, no Dolby Vision support 1 2 4 7
Low typical SDR brightness around 250 nits 1 5 8
No built-in speakers 1 2 6

Best for

Competitive gamers and creators wanting top-tier OLED performance.

Skip it if

Budget buyers or those needing Dolby Vision and high SDR brightness.

Where it fits

use: Fast gamesGamingWorkPhoto and video
size: 27″
resolution: 4K
panel: OLED

Specs

Size: 26.5″
Resolution: 4K
Refresh rate: 240 Hz
Panel: OLED
Curved: No
USB-C: No
HDMI 2.1: No
Height-adjustable stand: No
Speakers: No

Also worth a look

Questions

Is the ASUS ROG XG27UCDMG worth it?

Excellent 4K 240Hz QD-OLED gaming monitor with superb image quality and motion, but priced at a premium with limited HDR and modest SDR brightness.

What do reviewers like about the ASUS ROG XG27UCDMG?

Superb 4K QD-OLED image with deep blacks. 240Hz refresh, 0.03ms response, VRR support. Excellent factory color accuracy, sRGB/DCI-P3 coverage. Versatile connectivity: USB-C 90W PD, HDMI 2.1. Ergonomic stand with full adjustments, compact footprint.

What are the downsides of the ASUS ROG XG27UCDMG?

Basic HDR, no Dolby Vision support. Low typical SDR brightness around 250 nits. No built-in speakers.

Who should buy the ASUS ROG XG27UCDMG?

Competitive gamers and creators wanting top-tier OLED performance. Skip it if budget buyers or those needing Dolby Vision and high SDR brightness.

Sources

We don't test products ourselves. This page sums up 8 published reviews, read on October 24, 2026; each point above links to the reviews that make it.