KOORUI 24E3 165Hz Gaming Monitor vs LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor
The KOORUI 24E3 165Hz Gaming Monitor crushes the LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor for gaming with its 165Hz refresh rate versus the LG's 60Hz. If you're a gamer, that means buttery smooth action and responsiveness that the LG simply can't match. However, the LG DualUp shines in productivity with its unique 16:18 aspect ratio, which offers more vertical workspace than the KOORUI's traditional 16:9. In practical terms, this means you can view two documents side by side without the annoying bezel gap, making it an impressive choice for multitaskers and creators in 2026. Key specs: Display: 23.8" vs 27.6" and Refresh: 165 Hz vs 60 Hz.
Why compare these? The KOORUI 24E3 165Hz Gaming Monitor (budget-friendly) and LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor (premium flagship) represent different approaches to monitors. While they may appeal to different budgets, many buyers consider both options. This 2026 comparison helps you decide if the differences justify the price gap.
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Key Differences at a Glance
| Aspect | KOORUI 24E3 | LG DualUp |
|---|---|---|
| User Rating | 4.3★ (3,500 reviews) | ✓4.7★ (36 reviews) |
| Top Strength | True Fast IPS panel delivers 1ms response times with vibrant 99% sRGB colors | Unique 16:18 aspect ratio provides the vertical workspace of two 21.5-inch monitors without the bezel gap |
| Main Drawback | Stand ergonomics are poor (Tilt only; no height adjustment) | Strictly limited to 60Hz with no VRR, making it poor for gaming |
| Market Position | Budget | ✓Flagship |
KOORUI 24E3 165Hz Gaming Monitor
23.8" Viewable (24" Class)
1920 x 1080 (FHD)
16:9
IPS (Fast IPS)
LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor
27.6" Viewable (28" Class)
2560 x 2880 (SDQHD)
16:18
Nano IPS
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: KOORUI 24E3 165Hz Gaming Monitor vs LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor
KOORUI 24E3 165Hz Gaming Monitor
LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor
| Criterion | KOORUI 24E3 165Hz Gaming Monitor | LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor |
|---|---|---|
| Rating | ★4.3(3,500)Amazon | ★4.7(36)Best Buy |
Screen Size | 23.8" Viewable (24" Class) | 27.6" Viewable (28" Class) |
Resolution | 1920 x 1080 (FHD) | 2560 x 2880 (SDQHD) |
Aspect Ratio | 16:9 | 16:18 |
Screen Type | IPS (Fast IPS) | Nano IPS |
Refresh Rate | 165 Hz (via DisplayPort) / 144 Hz (via HDMI) | 60 Hz |
Response Time | 1 ms (GtG) | 5 ms (GtG) |
Brightness | 250 nits (Typical) | 300 nits (Typical) |
Contrast | 1,000:1 (Static) / 20,000,000:1 (Dynamic) | 1,000:1 (Typical) |
Color Gamut | 99% sRGB / 72% NTSC | 98% DCI-P3 (CIE1976) |
Color Depth | 16.7M (8-bit) | 1.07 Billion (10-bit) |
HDR | No (Not supported) | HDR10 |
Adaptive Sync | AMD FreeSync (G-Sync Compatible) | No (Not supported) |
Viewing Angles | 178° (H) / 178° (V) | 178° (H) / 178° (V) |
Curvature | Flat | Flat |
Speakers | No (None) | 2x 7 W (Stereo with MaxxAudio) |
Ports | 2x HDMI 1.4; 1x DisplayPort 1.2; 1x 3.5mm Audio Out | 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 |
USB C | No | Yes (90W Power Delivery + Video + Data) |
Kvm | No | Yes (Built-in Auto KVM & PBP) |
Vesa | 75 x 75 mm | 100 x 100 mm |
Ergonomics | Tilt only (-5° to 20°) | Ergo Stand (C-Clamp/Grommet): Extend/Retract (210mm), Swivel (±335°), Pivot (90° CCW), Height (130mm), Tilt (±25°) |
Power Consumption | 30 W (Max) / 0.5 W (Standby) | 40 W (Typical) / 190 W (Max) / 0.5 W (Sleep) |
Weight With Stand | 3,060 g (6.75 lbs) | 9,000 g (19.8 lbs) |
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KOORUI 24E3 165Hz Gaming Monitor
23.8" Viewable (24" Class)
1920 x 1080 (FHD)
16:9
IPS (Fast IPS)
165 Hz (via DisplayPort) / 144 Hz (via HDMI)
1 ms (GtG)
Pros
- True Fast IPS panel delivers 1ms response times with vibrant 99% sRGB colors
- High 165Hz refresh rate (via DisplayPort) for competitive esports gaming
Cons
- Stand ergonomics are poor (Tilt only; no height adjustment)
- HDMI ports are limited to 144Hz (must use DisplayPort for full 165Hz)
LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor
27.6" Viewable (28" Class)
2560 x 2880 (SDQHD)
16:18
Nano IPS
60 Hz
5 ms (GtG)
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
Cons
- Strictly limited to 60Hz with no VRR, making it poor for gaming
- Unconventional aspect ratio (2560x2880) may require scaling tweaks in macOS/Windows
Which one is better?
The KOORUI 24E3 165Hz Gaming Monitor is the better buy for most people - its 165Hz refresh rate crushes the LG DualUp's 60Hz. That said, grab the LG DualUp if you need a unique workspace setup for productivity - it's ideal if you work with multiple documents at once.
Who should buy each?
Choose the KOORUI 24E3 165Hz Gaming Monitor if: you game competitively and need a high refresh rate, you want vibrant colors with 99% sRGB coverage, or you prefer a budget-friendly option.
Choose the LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor if: you work extensively with vertical content, you need accurate color for photo editing, or you prefer a multi-screen experience without the bezel gap. (27.6" display, 60 Hz refresh)
Quality Seekers
Higher user rating (4.7★ vs 4.3★) indicates better overall satisfaction
→ Choose LG DualUp
Safe Choice Buyers
More widely tested with 3,500 reviews vs 36
→ Choose KOORUI 24E3
Premium Buyers
Higher-tier option with more premium features and build quality
→ Choose LG DualUp
Value Seekers
Better value proposition for buyers who don't need top-tier features
→ Choose KOORUI 24E3
Conclusion
KOORUI 24E3 165Hz Gaming Monitor and LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor are both solid choices. Match the strengths above to your budget and workflow to make the best call.
Bottom line: The LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor leads with a 4.7★ rating versus 4.3★. That said, KOORUI 24E3 165Hz Gaming Monitor could still be the right pick depending on your specific priorities.
Frequently Asked Questions
+Which is better: KOORUI 24E3 165Hz Gaming Monitor or LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor?
KOORUI 24E3 165Hz Gaming Monitor is the better choice if you prioritize true fast ips panel delivers 1ms response times with vibrant 99% srgb colors. LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor wins if you value unique 16:18 aspect ratio provides the vertical workspace of two 21.5-inch monitors without the bezel gap. Both are rated highly (4.3★ vs 4.7★), so consider your specific needs and budget.
+What are the main differences between KOORUI 24E3 165Hz Gaming Monitor and LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor?
Key differences: KOORUI 24E3 165Hz Gaming Monitor offers true fast ips panel delivers 1ms response times with vibrant 99% srgb colors, while LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor stands out with unique 16:18 aspect ratio provides the vertical workspace of two 21.5-inch monitors without the bezel gap. Consider that KOORUI 24E3 165Hz Gaming Monitor stand ergonomics are poor (tilt only; no height adjustment). Meanwhile, LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor strictly limited to 60hz with no vrr, making it poor for gaming. Check the detailed specs table above for a complete comparison.
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For US buyers, Amazon typically offers competitive pricing with Prime shipping, easy returns, and reliable warranty support. We recommend comparing prices on both products using our affiliate links above—prices fluctuate regularly, and you may find sales or deals.
+Is this comparison up to date?
Yes, this comparison is current for 2026. We regularly verify specs, ratings, and availability. Last verified: January 26, 2026. PageBen uses affiliate links for monetization, but our recommendations are research-driven and independent.
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