LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor vs ARZOPA A1 15.6" FHD Portable Monitor
The LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor crushes the ARZOPA A1 15.6" FHD Portable Monitor when it comes to display quality: 2560x2880 vs 1920x1080. This flagship monitor offers a unique 16:18 aspect ratio, providing the workspace equivalent to two 21.5" monitors stacked without the annoying bezel gap. In real-world use, the LG's 98% DCI-P3 color gamut delivers vibrant, accurate colors that creators will love, especially compared to the ARZOPA's washed-out 45% NTSC. If you're looking for a portable solution, the ARZOPA is lightweight at just 1.6 lbs, making it a breeze to carry around, but its performance falls short for serious tasks like photo editing or gaming.
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LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor

ARZOPA A1 15.6" FHD Portable Monitor
Only the specs that differ are shown here. Winners are highlighted when the data is clear.
+Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
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Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
Comparison: LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor vs ARZOPA A1 15.6" FHD Portable Monitor

LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor

ARZOPA A1 15.6" FHD Portable Monitor
| Criterion | LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor | ARZOPA A1 15.6" FHD Portable Monitor |
|---|---|---|
| Rating | ★4.7(36)Best Buy | ★4.4(14,391)Amazon |
Screen Size | 27.6" Viewable (28" Class) | 15.6" (39.6 cm) |
Resolution | 2560 x 2880 (SDQHD) | 1920 x 1080 (FHD) |
Aspect Ratio | 16:18 | 16:9 |
Screen Type | Nano IPS | IPS |
Refresh Rate | 60 Hz | 60 Hz |
Response Time | 5 ms (GtG) | N/A (Not specified) |
Brightness | 300 nits (Typical) | 300 cd/m² (Typical) |
Contrast | 1,000:1 (Typical) | 1,200:1 (Static) |
Color Gamut | 98% DCI-P3 (CIE1976) | 45% NTSC (approx. 65% sRGB) |
Color Depth | 1.07 Billion (10-bit) | 6-bit (262K colors) |
HDR | HDR10 | HDR10 (Signal support only) |
Adaptive Sync | No (Not supported) | No (Not supported) |
Viewing Angles | 178° (H) / 178° (V) | 178° (H) / 178° (V) |
Curvature | Flat | No (Flat panel) |
Speakers | 2x 7 W (Stereo with MaxxAudio) | Yes (2x 1W) |
Ports | 2x HDMI 2.0; 1x DisplayPort 1.4; 1x USB-C (90W PD, Data, Video); 2x USB-A 3.0 Downstream; 1x USB-B 2.0 Upstream; 1x 3.5mm Headphone Out | 1x Mini HDMI; 2x USB-C (Full Function: DP Alt Mode + Power Delivery); 1x 3.5mm Audio Out |
USB C | Yes (90W Power Delivery + Video + Data) | Yes (2x USB-C with Pass-Through Charging support) |
Kvm | Yes (Built-in Auto KVM & PBP) | No |
Vesa | 100 x 100 mm | No (Not supported) |
Ergonomics | Ergo Stand (C-Clamp/Grommet): Extend/Retract (210mm), Swivel (±335°), Pivot (90° CCW), Height (130mm), Tilt (±25°) | Built-in adjustable kickstand (0° to 90° tilt) |
Power Consumption | 40 W (Typical) / 190 W (Max) / 0.5 W (Sleep) | 8 W (Max); Requires 5V/2.4A source |
Weight With Stand | 9,000 g (19.8 lbs) | 725 g (1.6 lbs) |
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LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor
✓ Pros:
- • Unique 16:18 aspect ratio provides the vertical workspace of two 21.5-inch monitors without the bezel gap
- • Nano IPS panel covers 98% DCI-P3, offering professional-grade color accuracy for creators
- • Included Ergo Stand allows for extreme flexibility and frees up desk space (C-Clamp mount)
- • USB-C connectivity delivers up to 90W charging, handling powerful MacBook Pros and Windows laptops
- • Built-in KVM and Picture-by-Picture (PBP) allow you to view and control two computers simultaneously
✗ Cons:
- • Strictly limited to 60Hz with no VRR, making it poor for gaming
- • Unconventional aspect ratio (2560x2880) may require scaling tweaks in macOS/Windows
- • Setup is heavy and requires a sturdy desk edge for the C-Clamp
- • Upstream USB-B port is limited to USB 2.0 speeds (though USB-C supports 3.0)
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ARZOPA A1 15.6" FHD Portable Monitor
✓ Pros:
- • Ultra-lightweight design (1.6 lbs) makes it ideal for travel
- • Plug-and-play single cable connection via USB-C for compatible laptops
- • Includes necessary cables (USB-C to USB-C, Mini HDMI to HDMI, USB-A to USB-C)
- • Built-in kickstand offers decent stability without needing a separate cover
- • Pass-through charging allows you to power the monitor and charge a connected device simultaneously
✗ Cons:
- • Limited color gamut (45% NTSC) makes colors look washed out; not suitable for photo editing
- • No VESA mounting holes limits installation options
- • Brightness (300 nits) is sufficient for indoors but struggles in direct sunlight
- • Lacks a built-in battery; must draw power from the connected device or wall adapter
- • 6-bit color depth can result in visible color banding in gradients
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Which one is better?
The LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor is the better buy for most people - its 98% DCI-P3 color accuracy crushes the ARZOPA A1's 45% NTSC. That said, grab the ARZOPA A1 if you need something ultra-portable and lighter at just 1.6 lbs.
Who should buy each?
Choose the LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor if: you need professional-grade color accuracy for design work, want a larger display for multitasking, or require a versatile workstation setup. (27.6" display, 317.47 oz weight)
Choose the ARZOPA A1 15.6" FHD Portable Monitor if: you need an ultra-light option for travel, want plug-and-play functionality, or prefer a budget-friendly display for casual use. (15.6" display, 25.57 oz weight)
Conclusion
We hope this comparison helps you buy with confidence. Both products are dependable; the right one depends on how you will use it.
Frequently Asked Questions
+Which has better value?
LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor excels if you value unique 16:18 aspect ratio provides the vertical workspace of two 21.5-inch monitors without the bezel gap. ARZOPA A1 15.6" FHD Portable Monitor is better if you prioritize ultra-lightweight design (1.6 lbs) makes it ideal for travel. Pick based on your budget and daily use.
+Is this an independent review?
Yes. We use affiliate links for monetization, but recommendations are research-driven and unbiased.
+Do newer models exist?
Check release timelines from the manufacturers and compare pricing before you buy. We refresh this page when major updates land.
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