Tested by IMartz
ASUS ROG XG27UCDMG
26.5-inch glossy 4K 240 Hz QD-OLED. It stands out for excellent sharpness, good factory calibration, 90 W USB-C, KVM, a proximity sensor, uniform SDR brightness and full PS5 compatibility.
PanelTandem QD-OLED
A glossy surface. Reflections tend to look more defined; avoid windows or lights facing the screen.
IMartz verdict
Pros
- Excellent sharpness thanks to the combination of 27 inches, 4K resolution and a QD-OLED panel.
- A very good set of useful extras: 90 W USB-C, KVM, PIP, a proximity sensor and uniform SDR brightness.
- Good factory calibration, useful sRGB/DCI-P3 modes and real room for improvement with a colorimeter.
Things to consider
- No DisplayPort 2.1, unlike some direct competitors with the same panel.
- Glossy finish with defined reflections and magenta-tinted blacks in direct light.
- VRR flickering remains, although OLED Anti-Flicker helps reduce it.
A good fit if…
- Those seeking a very sharp 27-inch 4K OLED for gaming, desktop and mixed use.
- Users who value productivity extras such as high-power USB-C, KVM, PIP and a proximity sensor.
- PC and PS5 gamers who want 4K 240 Hz, instant response and full console compatibility.
Consider another option if…
- You absolutely want DisplayPort 2.1 for the most modern connectivity possible.
- You have a lot of direct light or reflections facing the monitor and do not want to deal with glossy/QD-OLED.
- You prefer 32 inches for work or for a main all-purpose 4K monitor.
Measurements and specifications
IMartz test results. See each section for the measurement conditions.
Display and format
SDR performance
Color, brillo, contraste y comportamiento básico fuera de HDR.
HDR performance
Brillo pico, volumen de color, EOTF y experiencia HDR real.
Test note · EOTF tracking
True Black 400 tracks close to the reference with small highlights. Higher-peak modes boost those details but darken some midtones when the image fills much of the screen. Dynamic Brightness changes highlight behavior; peak brightness alone does not describe image fidelity.
OLED brightness
Datos específicos de brillo en OLED, APL y desbloqueos relevantes.
Response time and PC gaming
Overdrive, tiempo de respuesta, overshoot, VRR e input lag.
PS5 and consoles
Compatibilidad con VRR, ALLM y resoluciones permitidas.
OLED characteristics
Subpíxel, claridad de texto, protecciones y limitaciones del panel.
Connectivity
Entradas de vídeo, USB-C, KVM, hub USB y extras de conexión.
Stand, mounting and extras
Calidad física, ergonomía, VESA y detalles destacables.
PIP and PBP
Photos and test results
Open an image to view the full-size charts and browse the tests.
Colour gamut and accuracy
Grayscale and gamma
Brightness and uniformity
Brightness and contrast
Luminance and EOTF
Colour gamut and accuracy
Response time, motion and latency
Alternatives
Other options, each with its own specifications and test results.
