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UltraGear 25G590B MOBIUZ EX271UZ
LAUNCH DATE
Announced 2026, May 19 2025, September 19 (US availability December 2025)
Released 2026-09-01 —
Status Available Available
ADDITIONAL INFORMATION
Compatibility — Consoles: HDMI 2.1 with ALLM, VRR and eARC; USB-C 90W for laptops
Launch Price (USD) $999.99 (US launch price) $999 (US launch price)
Models 25G590B (25G590B-B) —
Price in Nigeria ₦1,400,000 (estimate, converted from US launch price) ₦1,398,600 (estimate, converted from US launch price)
TESTS
Brightness Measured — 265 nits full-field SDR, ~400 nits 25% window in default mode (Tom's Hardware); 260 nits SDR, 820 nits HDR (Notebookcheck)
Color Accuracy — Delta E 1.09 (Display P3), 0.90 (sRGB); 102.96% DCI-P3 (Tom's Hardware); Delta E 1.05 (Notebookcheck)
Input Lag — 18 ms (Tom's Hardware)
Response Time Measured — 4 ms full white-field draw (Tom's Hardware); 1.6 ms black-white, 1 ms grey-grey (Notebookcheck)
DESIGN AND BUILD
Dimensions (with stand) 571.8 x 511.2 x 207.3 mm 537.26 x 610.91 x 223.48 mm (H x W x D)
Panel Type IPS QD-OLED (4th gen)
Screen Size 24.5 inches 26.5 inches (27-inch class)
Stand Adjustments Height, tilt, swivel Tilt -5° to +15°, swivel ±15°, height 100 mm (no pivot)
VESA Mount 100 x 100 mm 100 x 100 mm
Weight (with stand) 5.2 kg 7.43 kg (5.14 kg without stand)
DISPLAY AND RESOLUTION
Aspect Ratio 16:9 16:9
Brightness 400 nits typical (320 nits min) 250 nits typical; 1000 nits peak (HDR)
Color Depth 8-bit (16.7 million colors) 1.07 billion colors
Color Gamut 99% DCI-P3 99% P3 (DCI-P3); Delta E <2
Contrast Ratio 1000:1 (typical) 1,500,000:1 (native)
HDR Support VESA DisplayHDR 400 VESA DisplayHDR True Black 400
Pixel Density 0.282 x 0.281 mm pixel pitch 166 PPI
Refresh Rate 1000Hz (native), 1100Hz (overclocked, DisplayPort 2.1) 240 Hz
Resolution 1920 x 1080 pixels 3840 x 2160 (4K UHD)
Response Time 1ms (GtG) 0.03 ms (GtG)
Screen Coating Low-reflection film, ATW polarizer Glossy (glare)
Viewing Angles 178° / 178° 178°/178°
GAMING FEATURES
Adaptive Sync AMD FreeSync Premium, NVIDIA G-Sync Compatible AMD FreeSync Premium Pro; G-Sync Compatible
Gaming Aids — Crosshair, FPS counter, Blur Reduction, Light Tuner, Color Vibrance, 12 colour modes incl. game-art presets (Color Shuttle)
Low Input Lag Mode — Auto Low Latency Mode (ALLM) and VRR for consoles
CONNECTIVITY
Audio Out Yes, 4-pole headphone out (sound + mic) Headphone jack
DisplayPort 1x DisplayPort 2.1 (UHBR20) 1x DisplayPort 1.4
Ethernet / KVM — Built-in KVM switch
HDMI 2x HDMI 2.1 2x HDMI 2.1 (one with eARC)
USB Hub USB Type-C USB-C upstream (USB 3.2 Gen 1, data); 2x USB-A (4.5W) + 1x USB-C (7.5W) downstream, USB 3.2 Gen 1
USB-C — 1x USB-C with DP Alt Mode and 90W power delivery
POWER
Power Consumption 28 W typical 37 W normal, 230 W max, <0.5 W sleep
Power Supply — Built-in
Voltage 100–240 V AC, 50/60 Hz 100-240V
EXTRAS AND FEATURES
Eye Care Flicker Safe, Reader Mode Flicker-free (TÜV certified), hardware Low Blue Light (TÜV certified), Color Weakness mode
Other Features Motion Blur Reduction Pro, AI Scene Optimization, AI Sound; UltraGear emblem RGB lighting Remote control; OLED care (pixel refresh, idle dimmer, logo dimming, pixel shift, thermal design); factory calibration report; HDMI CEC; 3-year warranty
Speakers — None (no built-in speakers)