AOC G4 25G4K 25″ 420Hz Monitor

25 inch · 1920 x 1080 · 420 Hz · Fast IPS

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Screen size 25 inch
Resolution 1920 x 1080
Refresh rate 420 Hz
Panel Fast IPS
Response time 1 ms

AOC G4 25G4K 25″ 420Hz Monitor is a 25-inch monitor with 1920 x 1080 resolution, a 420 Hz refresh rate and Fast IPS panel. The high refresh rate makes fast games look smoother. It came out in 2025.

Released: 2025-09-16

Specifications

Key specs

Screen size: 25 inch
Resolution: 1920 x 1080
Refresh rate: 420 Hz
Panel: Fast IPS
Response time: 1 ms
Released: 2025-09-16
Part number: 25G4K

Display

Display diagonal: 62.2 cm (24.5")
Display resolution: 1920 x 1080 pixels
HD type: Full HD
Native aspect ratio: 16:9
Display technology: LED
Panel type: Fast IPS
LED backlight: Yes
Display brightness (typical): 350 cd/m²
Response time: 1 ms
Response time measurement type: GTG (Gray to Gray)
Response time (MPRT): 0.3 ms
Screen shape: Flat
Contrast ratio (typical): 1000:1
Dynamic contrast ratio marketing name: Mega DCR
Maximum refresh rate: 420 Hz
Viewing angle, horizontal: 178°
Viewing angle, vertical: 178°
Display number of colours: 16.7 million colours
Pixel pitch: 0.2832 x 0.2832 mm
Viewable size, horizontal: 54.4 cm
Viewable size, vertical: 30.3 cm
High Dynamic Range (HDR) supported: Yes
High Dynamic Range (HDR) technology: High Dynamic Range (HDR) 400
Colour gamut standard: DCI-P3, sRGB
sRGB coverage (typical): 110%
DCI-P3 coverage: 92%

Performance

VESA Adaptive Sync support: Yes
Flicker-free technology: Yes
Low Blue Light technology: Yes

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Design

Market positioning: Gaming
Product colour: Black, Red
Frameless design: Yes
Front bezel colour: Black
Feet colour: Black, Red

Ports & interfaces

HDMI: Yes
HDMI ports quantity: 2
HDMI version: 2.0
DisplayPorts quantity: 1
DisplayPort version: 1.4
Headphone out: Yes
Headphone outputs: 1
Headphone connectivity: 3.5 mm
HDCP: Yes
HDCP version: 2.2

Ergonomics

VESA mounting: Yes
Panel mounting interface: 100 x 100 mm
Height adjustment: Yes
Adjustable height (max): 13 cm
Pivot: Yes
Pivot angle: -90 - 90°
Swivelling: Yes
Swivel angle range: -30 - 30°
Tilt adjustment: Yes
Tilt angle range: -5 - 23°
Plug and Play: Yes

Power

Power consumption (typical): 24 W
AC input voltage: 100 - 240 V
AC input frequency: 50/60 Hz
Input current: 1.5 A
Power supply type: Internal

Weight & dimensions

Width (with stand): 560.1 mm
Depth (with stand): 240 mm
Height (with stand): 499 mm
Weight (with stand): 4.22 kg
Width (without stand): 560.1 mm
Depth (without stand): 52.1 mm
Height (without stand): 324.8 mm
Weight (without stand): 2.85 kg

Other features

Low input lag: Yes
Shadow control: Yes
Compliance certificates: CE
Certification: RoHs compliant,CB,FCC

Check the manufacturer's page before buying.

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About this product

24.5" 420Hz Gaming Monitor AOC 25G4K is a gaming monitor designed for e-sports enthusiasts1. It features a 24.5-inch Fast-IPS panel with a resolution of 1920x1080. With a 420Hz refresh rate and 0.3ms response time, it offers super-smooth visuals1. It has DisplayHDR 400 certification, 92% DCI-P3 color gamut and Anti-blue light technology. The monitor also comes with HDMI, DP for easy connection.

User manual (PDF)

25G4K vs similar monitors

	AOC G4 25G4K 25″ 420Hz Monitor	AOC G3 25G3Z/69 25″ 240Hz Monitor	AOC G4 25G4ZR 25″ 260Hz Monitor	MSI MAG 255FDE E20
Screen size	25 inch	25 inch	25 inch	25 inch
Resolution	1920 x 1080	1920 x 1080	1920 x 1080	1920 x 1080
Refresh rate	420 Hz	240 Hz	260 Hz	200 Hz
Panel	Fast IPS	Fast IPS	Fast IPS	Fast IPS
Response time	1 ms	1 ms	1 ms	1 ms
Released	2025	2026	2026	2026