KOORUI S3241XO 31.5" Black 2025
The 31.5-inch QD-OLED panel delivers 4K resolution at a 240Hz refresh rate with a 0.03ms response time, ensuring exceptional motion clarity and deep contrast via its 1,500,000:1 ratio and DisplayHDR True Black 400 certification. It combines 98% DCI-P3 color coverage with dual VRR support from FreeSync Premium and G-Sync Compatibility, plus a versatile stand offering height, tilt, swivel, and pivot adjustments. This monitor is best for competitive gamers who refuse to compromise between 4K visual fidelity and high-refresh-rate performance.
About This Monitor
The 31.5-inch QD-OLED panel delivers 4K resolution at a 240Hz refresh rate with a 0.03ms response time, ensuring exceptional motion clarity and deep contrast via its 1,500,000:1 ratio and DisplayHDR True Black 400 certification. It combines 98% DCI-P3 color coverage with dual VRR support from FreeSync Premium and G-Sync Compatibility, plus a versatile stand offering height, tilt, swivel, and pivot adjustments. This monitor is best for competitive gamers who refuse to compromise between 4K visual fidelity and high-refresh-rate performance.
- Screen size 31.5
- Resolution 3840 x 2160 (4K)
- Panel type QD-OLED
- Refresh rate 240
- Response time ms 0.029999999329447746
- Adaptive sync G-Sync Compatible
- HDR DisplayHDR True Black 400
Overview
Performance
Pros & Cons
Pros
- Strong performance (98th percentile) 98th
- Strong display (97th percentile) 97th
- Strong ergonomic (91th percentile) 91th
- Strong social proof (89th percentile) 89th
Cons
Specifications
Full Specifications
Display
| Size | 31.5" |
| Resolution | 3840 (4K UHD) |
| Panel Type | QD-OLED |
| Aspect Ratio | 16:9 |
| Curved | No |
Performance
| Refresh Rate | 240 Hz |
| Response Time | 0.03 |
| Adaptive Sync | G-Sync Compatible |
Color & HDR
| Brightness | 280 nits |
| Color Gamut | 98% DCI-P3 |
| HDR | DisplayHDR True Black 400 |
| HDR Support | HDR |
Connectivity
| HDMI Ports | 2 |
| DisplayPort | 1 |
| USB-C | 1 |
Ergonomics
| Height Adjustable | Yes |
| Tilt | Yes |
| Swivel | Yes |
| Pivot | Yes |
| VESA Mount | 100x100 |
Features
| Weight | 11.6 kg / 25.6 lbs |
Value & Pricing
vs Competition
| Spec | KOORUI S3241XO 31.5" | ASUS ROG Strix XG27AQDMG | LG UltraGear 45GX950A-B | Alienware AW-Series AW3425DW | Samsung Odyssey Neo G8 LS32BG852NNXGO | MSI MPG 491CQP |
|---|---|---|---|---|---|---|
| Screen Size | 31.5 | 26.5 | 44.5 | 34 | 32 | 49 |
| Resolution | 3840 x 2160 (4K) | 2560 x 1440 | 5120 x 2160 | 3440x1440 | 3840 x 2160 | 5120x1440 |
| Panel Type | QD-OLED | OLED | OLED | QD-OLED | VA | QD-OLED |
| Refresh Rate | 240 | 240 | 165 | 240 | 240 | 144 |
| Response Time Ms | 0.029999999329447746 | 0.029999999329447746 | 0.029999999329447746 | 0.029999999329447746 | 1 | 0.30000001192092896 |
| Adaptive Sync | G-Sync Compatible | FreeSync Premium Pro | FreeSync Premium Pro | FreeSync Premium Pro | FreeSync Premium Pro | Adaptive-Sync |
| Hdr | DisplayHDR True Black 400 | HDR10 | DisplayHDR True Black 400 | DisplayHDR 400 True Black | Quantum HDR 2000 | Advanced HDR |
| Compare | Compare | Compare | Compare | Compare |
| Product | Color | Compact | Display | Feature | Ergonomic | Performance | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|
| KOORUI S3241XO 31.5" | 73.4 | 54.9 | 97.3 | 72.7 | 90.5 | 97.9 | 82.2 | 89 |
| ASUS ROG Strix XG27AQDMG Compare | 96.5 | 73.9 | 75.5 | 72.7 | 90.5 | 97.9 | 93.2 | 89 |
| LG UltraGear 45GX950A-B Compare | 99.4 | 82.4 | 99.7 | 97.4 | 90.5 | 96.2 | 96.8 | 84.7 |
| Alienware AW-Series AW3425DW Compare | 98.4 | 79.9 | 85.5 | 92 | 90.5 | 97.9 | 95.3 | 99.4 |
| Samsung Odyssey Neo G8 LS32BG852NNXGO Compare | 93.3 | 32.3 | 92.4 | 97.4 | 90.5 | 87.9 | 87.8 | 74.8 |
| MSI MPG 491CQP Compare | 81.6 | 54.9 | 98 | 97.4 | 90.5 | 93.9 | 82.2 | 82.3 |
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
