LG 24U421A-B 23.8" Black 2025
Screen 23.799999237060547
Resolution 1920 x 1080
Panel VA
Refresh 100 Hz
response time ms 5
HDR HDR10
57 Overall Score
Price ¥37,865
Snapshot
Pros & Cons
Pros
- Strong feature (100th percentile) 100th
- Strong compact (90th percentile) 90th
- Strong social proof (76th percentile) 76th
Cons
- Below average display (13th percentile)
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews — so you can see whether early praise held up.
Owner sentiment has cooled since launch
Based on 9 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Display
| Size | 23.8" |
| Resolution | 1920 (Full HD) |
| Panel Type | VA |
| Aspect Ratio | 16:9 |
| Curved | Yes |
| Curvature | 1500 |
Performance
| Refresh Rate | 100 Hz |
| Response Time | 5 |
Color & HDR
| Brightness | 250 nits |
| Color Gamut | sRGB 99% (CIE1931) |
| HDR | HDR10 |
| HDR Support | HDR10 |
Connectivity
| HDMI Ports | 1 |
| USB-C | 1 |
| Headphone Jack | Yes |
Ergonomics
| Height Adjustable | No |
| Tilt | Yes |
| Swivel | No |
| Pivot | No |
| VESA Mount | 100x100 |
Features
| Webcam | Yes |
| Power | 14 |
| Weight | 2.9 kg / 6.4 lbs |
vs Competition
| Spec | LG 24U421A-B 23.8" | ASUS ROG Strix XG27AQDMG | Samsung Odyssey Neo G9 G95NC | MSI MPG 491CQP | Alienware AW-Series AW3425DW | Dell UltraSharp U3425WE |
|---|---|---|---|---|---|---|
| Screen Size | 23.799999237060547 | 26.5 | 57 | 49 | 34 | 34.13999938964844 |
| Resolution | 1920 x 1080 | 2560 x 1440 | 7680 x 2160 | 5120x1440 | 3440x1440 | 3440x1440 |
| Panel Type | VA | OLED | VA | QD-OLED | QD-OLED | IPS |
| Refresh Rate | 100 | 240 | 240 | 144 | 240 | 120 |
| Response Time Ms | 5 | 0.029999999329447746 | 1 | 0.30000001192092896 | 0.029999999329447746 | 5 |
| Adaptive Sync | - | FreeSync Premium Pro | FreeSync Premium Pro | Adaptive-Sync | FreeSync Premium Pro | G-Sync Compatible |
| Hdr | HDR10 | HDR10 | HDR10+ | Advanced HDR | DisplayHDR 400 True Black | DisplayHDR 400 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Color | Compact | Display | Feature | Ergonomic | Performance | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|
| LG 24U421A-B 23.8" | 54.6 | 90.4 | 12.9 | 99.6 | 49.3 | 48.6 | 47.4 | 75.6 |
| ASUS ROG Strix XG27AQDMG Compare | 96.5 | 74 | 75.7 | 72.6 | 90.6 | 97.9 | 93.2 | 86.4 |
| Samsung Odyssey Neo G9 G95NC Compare | 99.4 | 32.3 | 99.7 | 97.4 | 72.4 | 87.7 | 93.2 | 95.7 |
| MSI MPG 491CQP Compare | 81.7 | 55.2 | 98 | 97.4 | 90.6 | 93.8 | 82.4 | 99.9 |
| Alienware AW-Series AW3425DW Compare | 98.3 | 80 | 85.6 | 92 | 90.6 | 97.9 | 95.3 | 95.7 |
| Dell UltraSharp U3425WE Compare | 86.7 | 86.9 | 80.9 | 97.4 | 90.6 | 56.3 | 99.8 | 86.4 |
Price
Value & Pricing
From ¥37,865
Amazon.co.jp 1 offers From ¥37,865
May 29, 2026 ¥37,865
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
