
Uperfect M180K01 18-inch
Score: 88/100
Uperfect U27 14.5-inch
Score: 80/100Rankings

The UPERFECT 18-inch K118 delivers a high-refresh 2K IPS panel with full DCI-P3 coverage, making it a strong choice for gamers and creators who need color accuracy on the move. Its thin bezels, magnetic smart cover, and VESA compatibility add versatility, though brightness reset issues and modest speakers are drawbacks.

The UPERFECT U27 is a compact 14.5" 4K portable monitor with an ultra-slim aluminum body, magnetic smart cover stand and excellent color accuracy, targeting creators and remote workers. While it delivers sharp visuals and solid build quality, the lack of a battery, non-adjustable stand and limited refresh rate keep it from being a gaming-focused device.
| Attribute | ![]() | ![]() |
|---|---|---|
18 inchesbest | 14.5 inches | |
144 Hzbest | 60 Hz | |
400 nits | 500 nitsbest | |
1,200 ratio | 2,000 ratiobest | |
| ↓ lower better | 3 msbest | 5 ms |
1 countbest | 1 countbest | |
2 countbest | 2 countbest | |
— | 12 monthsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Display(8) | ||
Screen Size (inches) | 18 inches | 14.5 inches |
Resolution | 2560x1600 | 3840x2400 |
Refresh Rate (Hz) | 144 Hz | 60 Hz |
Panel Type | IPS Matte | Matte IPS |
Brightness (nits) | 400 nits | 500 nits |
Contrast Ratio (ratio) | 1200 ratio | 2000 ratio |
Response Time (ms) | 3 ms | 5 ms |
Color Gamut | 100% DCI-P3 | 100% sRGB |
Ergonomics(1) | ||
VESA Mount Compatibility | true | false |

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

Professional reviewers praise the K118 for its desktop-grade visual performance, high refresh rate and color accuracy, noting its plug-and-play convenience, solid build and VESA compatibility. The main criticisms focus on the awkward OSD control and the modest built-in speakers, while some point out that the panel is IPS rather than true QLED.
Everyday users love the monitor's crisp 2K display, smooth 144 Hz gaming and accurate colors, especially when paired with MacBooks or handheld consoles. Common complaints revolve around the brightness resetting after sleep, the fiddly side dial/OSD, weak speakers and the extra weight for a portable device.

“Perfect second screen for my MacBook Pro - matches the aspect ratio exactly.”

“Gaming on my ROG Ally is so much better with this 144 Hz screen.”

“Colors are vibrant and accurate - great for photo editing on the go.”




Professional reviewers note that the U27's 4K IPS panel delivers exceptional color accuracy and sharpness, matching or exceeding many competitors in the portable-monitor segment. They commend its solid aluminum construction and plug-and-play simplicity, positioning it as a strong value for creators and remote workers, though they acknowledge the lack of a battery and limited refresh rate.
Everyday users consistently give five-star ratings, praising the razor-sharp display, vibrant colors, and the convenience of the magnetic smart cover. Common complaints focus on the need for an external power brick, the non-adjustable stand, and modest speaker volume.