ASUS ROG Strix OLED XG27UCDMG / Dell 32 Plus 4K Monitor (S3225QS)

ASUS ROG Strix OLED XG27UCDMG: XG27UCDMG · 26.5-inch 4K 240 Hz QD-OLED

Dell 32 Plus 4K Monitor (S3225QS): S3225QS: 31.5-inch flat VA panel, 3840 × 2160, 120 Hz, built-in 2 × 5 W speakers, Ash White back and stand. Models in the same family with a USB hub and the QD-OLED S3225QC are separate products.

SpecificationASUS ROG Strix OLED XG27UCDMGDell 32 Plus 4K Monitor (S3225QS)
Release year20252025
Panel26.5-inch (27-inch class) QD-OLED, 16:9, anti-reflection surface

QD-OLED pairs self-emitting pixels with a quantum-dot colour layer; each pixel switches off individually, so blacks are fully dark.

ASUS		31.5-inch flat VA (vertical alignment) panel, LED edge backlight; 16:9, 3840 × 2160 (4K UHD), 139 ppi; anti-glare 3H-hardness surface

Dell lists 3000:1 contrast and 178°/178° viewing angles for this VA panel; the viewing-angle figure does not show at what angle colour and contrast start to shift.

Dell
Resolution and refresh3840 × 2160, 240 Hz

The 4K 240 Hz signal travels over DisplayPort 1.4 with DSC compression, or over HDMI 2.1 depending on graphics-card support.

ASUS		—
Response time0.03 ms (GtG)

This is the grey-to-grey pixel transition time, not total input lag.

ASUS		—
Brightness1000 cd/m² HDR peak

ASUS notes peak brightness may vary with colour pre-calibration; the peak is reached on a small screen area.

ASUS		—
Contrast1,500,000:1 (typical) ASUS—
Colour99% DCI-P3, 145% sRGB; ΔE < 2; 10-bit

Factory calibration (ΔE < 2) means colours are set close enough to target that differences are hard to see.

ASUS		—
HDRHDR10; VESA DisplayHDR 400 True Black ASUS—
Inputs1 × DisplayPort 1.4 (DSC); 2 × HDMI 2.1 (FRL); 1 × USB-C (DP Alt Mode, 90 W power)

The USB-C input takes video from a laptop and charges it at up to 90 W over one cable. HDMI 2.1 suits consoles at 4K 120 Hz.

ASUS		—
USB hub and audio3 × USB 3.2 Gen 1 Type-A; headphone jack ASUS—
Variable refreshFreeSync Premium Pro, G-SYNC Compatible; VESA AdaptiveSync Display 240 Hz

Variable refresh matches the screen's rate to the graphics card's frame rate, reducing tearing and stutter.

ASUS		—
FeaturesASUS OLED Care, KVM switch, Extreme Low Motion Blur, Neo Proximity Sensor, flicker-free

KVM shares a keyboard and mouse connected to the monitor between two computers. The proximity sensor dims the screen when the user leaves to reduce OLED wear.

ASUS		—
Power consumption< 80 W; < 0.5 W in power saving; < 0.3 W off; 100–240 V ASUS32 W in operation, 85 W maximum; 0.3 W standby and off; internal power supply, 100–240 V

It is ENERGY STAR 8.0 certified.

Dell
StandTilt +20°/−5°, swivel ±45°, pivot ±90°, 0–120 mm height; VESA 100 × 100; 1/4-inch tripod socket

The tripod socket lets a camera or light be mounted on the stand.

ASUS		—
Dimensions and weightWith stand 61.30 × 50.94 × 16.87 cm, 7.44 kg; without stand 61.03 × 36.92 × 6.65 cm, 5.0 kg ASUS—
Warranty3 years (including panel burn-in)

Warranty terms may vary by country.

ASUS		1-year limited hardware warranty with advanced exchange service in the US

Warranty length varies by country.

Dell
In the boxDisplayPort, Ultra High Speed HDMI, USB 3.2 and USB-C cables; power cord; VESA mount kit; microfibre cloth ASUS—
Refresh rate and response time—120 Hz (48–120 Hz vertical frequency); 4 ms GtG (Extreme), 5 ms GtG (Fast), 8 ms GtG (Normal); AMD FreeSync Premium

120 Hz at 4K is available over both HDMI 2.1 and DisplayPort 1.4; the source must also output 4K at 120 Hz. FreeSync Premium matches the refresh to the game’s frame rate within 48–120 Hz to prevent tearing; AMD’s tier also includes low framerate compensation (LFC). GtG figures are given for the fastest overdrive mode.

Dell
Brightness, contrast and colour—300 nits; 3000:1 contrast; 1.07 billion colours; 95% DCI-P3, 99% sRGB; HDR10

HDR10 support means the monitor accepts HDR signals; with 300 nits and edge lighting it carries no DisplayHDR tier. 1.07 billion colours corresponds to 10-bit colour depth.

Dell
Connections—2 × HDMI 2.1 (FRL, HDR, VRR; up to 4K 120 Hz; HDCP 2.2), 1 × DisplayPort 1.4 (4K 120 Hz, HDR, VRR; HDCP 2.2)

There is no USB-C, USB hub, headphone output or webcam, so a laptop cannot be charged over a single cable. A 1.8 m HDMI cable is in the box.

Dell
Speakers—2 × 5 W built-in speakers Dell
Stand and mounting—100 mm height adjustment, −5°/+21° tilt, −4°/+4° slant; VESA 100 × 100

The screen cannot rotate to portrait (pivot).

Dell
Eye comfort—ComfortView Plus; TÜV Rheinland 4-star eye comfort certification

ComfortView Plus cuts blue light to 35% or less at the hardware level; Dell says this does not affect colour accuracy.

Dell
Size and weight—With stand 71.3 × 44.6–54.6 × 22.2 cm, 8.77 kg; without stand 71.4 × 41.4 × 6.1 cm, 5.97 kg

Values are converted from Dell’s figures in inches and pounds.

Dell