LG U631A-B 32U631A-B 31.5" Black
The 32-inch QHD IPS panel with 100Hz refresh rate and G-Sync compatibility delivers smooth, tear-free visuals for mixed-use scenarios. Its 99% sRGB coverage and HDR10 support ensure accurate color for design work, while the USB-C 15W power delivery and 3-side borderless design add desk-friendly convenience. This monitor is best for home office users and students who want a large, color-accurate canvas for productivity and light content creation.
Snapshot
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.
- Q2 202661/100
Most buyers found the monitor good value with clear picture, but a defect causing purple lines and mixed feedback on brightness/ergonomics lowered sentiment.
- Purple lines appeared and multiplied after three months; one review warns to avoid this model.
- Brightness adequate for some, but barely enough; HDR underwhelming; not ideal for bright rooms.
- No height adjustment, limited swivel; base moves with swivel; riser or stand recommended.
- USB-C power delivery only 10-15W; insufficient to charge laptops, requires separate charger.
- Q1 202668/100
Buyers praise screen real estate and color accuracy but report issues with sturdiness of the stand, missing built-in speakers, and video card compatibility requirements.
- Large 32-inch screen excellent for multitasking and professional work.
- Stand is not sturdy even after proper installation.
- Monitor lacks built-in speakers, a surprising omission for some buyers.
- Requires video card upgrade for full resolution; works well after that.
- Q4 202567/100
Buyers praised the large, vivid screen for multitasking, but noted small fonts on a 23-inch model and gave 0-star ratings despite positive comments.
- Large screen with bright, vivid colors ideal for multitasking with a MacBook.
- Fonts on 23-inch model are small; may need adjustment or larger size.
- Great customer service experience reported by one buyer.
- 0-star ratings given despite positive review content, possible rating errors.
Based on 48 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Display
| Size | 31.5" |
| Resolution | 2560x1440 (QHD) |
| Panel Type | IPS |
| Aspect Ratio | 16:9 |
| Curved | No |
Performance
| Refresh Rate | 100 Hz |
| Response Time | 5 |
| Adaptive Sync | Adaptive-Sync |
Color & HDR
| Brightness | 250 nits |
| Color Gamut | 99% sRGB |
| Color Depth | 16.7M (Number of Colors) |
| HDR | HDR10 |
| HDR Support | HDR10 |
Connectivity
| HDMI Ports | 1 |
| DisplayPort | 0 |
| USB-C | 1 |
| Speakers | No |
| Headphone Jack | Yes |
Ergonomics
| Height Adjustable | No |
| Tilt | Yes |
| Swivel | No |
| Pivot | No |
| VESA Mount | 100x100 |
Features
| Webcam | No |
| Touchscreen | No |
| PIP/PBP | No |
| Weight | 6.5 kg / 14.3 lbs |
vs Competition
| Spec | LG U631A-B 32U631A-B 31.5" | ASUS TUF Gaming VG27AQL5A | Acer Nitro XV272U W2bmiiprx | Lenovo Legion R27qc-30 | Samsung Odyssey LS27BG402ENXGO | SANSUI 27 inch |
|---|---|---|---|---|---|---|
| Screen Size | 31.5 | 27 | 27 | 27 | 27 | 27 |
| Resolution | 2560 x 1440 | 2560 x 1440 | 2560 x 1440 | 2560 x 1440 | 1920 x 1080 | 2560 x 1440 |
| Panel Type | IPS | IPS | IPS | VA | IPS | IPS |
| Refresh Rate | 100 | 210 | 240 | 180 | 240 | 200 |
| Response Time Ms | 5 | 0.30000001192092896 | 0.5 | 0.5 | 1 | 1 |
| Adaptive Sync | Adaptive-Sync | FreeSync Premium | FreeSync Premium | FreeSync | G-Sync Compatible | FreeSync |
| Hdr | HDR10 | DisplayHDR 400 | DisplayHDR 400 | HDR10 | HDR10 | HDR |
| Compare | Compare | Compare | Compare | Compare |
| Product | Color | Portability | Display | Feature | User Sentiment | Ergonomic | Performance | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|---|
| LG U631A-B 32U631A-B 31.5" | 62 | 56.1 | 72.6 | 74.1 | 58.3 | 55.7 | 55.1 | 53.5 | 90.7 |
| ASUS TUF Gaming VG27AQL5A Compare | 91.3 | 75.1 | 72.6 | 74.1 | 74.8 | 91.9 | 95.9 | 89.9 | 73.9 |
| Acer Nitro XV272U W2bmiiprx Compare | 92.7 | 61.1 | 72.6 | 74.1 | 95.8 | 91.9 | 94.9 | 92.9 | 78.6 |
| Lenovo Legion R27qc-30 Compare | 85.9 | 67.9 | 68.1 | 92.5 | 74.8 | 91.9 | 93.4 | 92.9 | 65.3 |
| Samsung Odyssey LS27BG402ENXGO Compare | 86.6 | 46.7 | 55.6 | 74.1 | 0 | 91.9 | 89.5 | 89.9 | 99.5 |
| SANSUI 27 inch Compare | 94.2 | 15.2 | 72.6 | 74.1 | 89.1 | 91.9 | 87.3 | 80.4 | 90.7 |
