
LG 27U631A-B
Score: 81/100
AOC 27G4H
Score: 67/100Rankings

The LG 27U631A-B delivers a crisp QHD IPS panel with accurate colors and a smooth 100 Hz refresh, complemented by USB-C docking and eye-care features. Its sleek, borderless design is appealing, but ergonomic adjustments are limited and it lacks built-in speakers and adaptive-sync.

The AOC 27G4H is a 27-inch Full HD gaming monitor that combines a Fast IPS panel with a 200 Hz refresh rate, 0.3 ms MPRT response and HDR10 support, delivering smooth, colorful gameplay at a budget-friendly price.
| Attribute | ![]() | ![]() |
|---|---|---|
27 inchesbest | 27 inchesbest | |
100 Hz | 200 Hzbest | |
| ↓ lower better | 5 ms | 1 msbest |
250 nits | 300 nitsbest | |
1,000best | 1,000best | |
99 % | 121 %best | |
1best | 1best | |
— | 1best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Display(5) | ||
Resolution | 2560x1440 | 1920x1080 |
Refresh Rate (Hz) | 100 Hz | 200 Hz |
Response Time (GTG) (ms) | 5 ms | 1 ms |
Brightness (nits) | 250 nits | 300 nits |
Color Gamut (sRGB %) (%) | 99 % | 121 % |
Ergonomics(1) | ||
Tilt Range (°) | 25 ° | 28 ° |
Power & Warranty(1) | ||
Warranty Period (years) | 1 years | 3 years |


Products in the top-left offer the best value (high score, low price).

Professional reviewers commend the sharp QHD IPS panel, accurate sRGB 99% color reproduction, and useful USB-C connectivity, but criticize the limited ergonomic adjustments and absence of adaptive-sync technology.
Everyday users love the vivid visuals and USB-C convenience, noting reduced eye strain, while common complaints focus on the lack of height adjustment, low USB-C power, and missing speakers.

Professional reviewers commend the AOC 27G4H for delivering high refresh rate, accurate colors and strong ergonomic features at a budget price, while noting modest HDR impact.
Everyday users overwhelmingly praise the ultra-smooth gameplay and adjustability, but note the lack of built-in speakers and occasional backlight bleed.
“Crisp and vibrant display”

“USB-C is a game-changer”

“Wish it had height adjustment”

