Dell UltraSharp U2723QE 27" 4K USB-C Hub Monitor vs LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor
If you want superior resolution, the Dell UltraSharp U2723QE 27" 4K USB-C Hub Monitor is the better pick, offering a stunning 3840 x 2160 resolution compared to LG's 2560 x 2880. This means sharper images and more detail, crucial for photography and design work. However, the LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor brings a unique vertical design that mimics two stacked monitors, making it ideal for multitasking. With a brightness of 300 nits, it falls short against Dell's 400 nits, but its ergonomic design is great for saving desk space and improving comfort during long work sessions. Key specs: Display: 27" vs 27.6" and Weight: 234.22 oz vs 317.47 oz.
Why compare these? Both the Dell UltraSharp U2723QE 27" 4K USB-C Hub Monitor and LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor are premium flagship monitors competing in the same market segment. This makes them direct rivals for buyers looking for premium flagship features and performance in 2026. Understanding their differences helps you choose the right one for your specific needs.
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Key Differences at a Glance
| Aspect | Dell UltraSharp | LG DualUp |
|---|---|---|
| User Rating | 4.6★ (31 reviews) | ✓4.7★ (36 reviews) |
| Top Strength | IPS Black technology delivers a 2,000:1 contrast ratio, offering significantly deeper blacks than standard IPS panels | Unique 16:18 aspect ratio provides the vertical workspace of two 21.5-inch monitors without the bezel gap |
| Main Drawback | Limited to 60Hz refresh rate, making it unsuitable for gaming or high-motion video work | Strictly limited to 60Hz with no VRR, making it poor for gaming |
| Market Position | Flagship | Flagship |
Dell UltraSharp U2723QE 27" 4K USB-C Hub Monitor
27" Viewable (27" Class)
3840 x 2160 (4K UHD)
16:9
IPS Black
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: Dell UltraSharp U2723QE 27" 4K USB-C Hub Monitor vs LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor
Dell UltraSharp U2723QE 27" 4K USB-C Hub Monitor
LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor
| Criterion | Dell UltraSharp U2723QE 27" 4K USB-C Hub Monitor | LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor |
|---|---|---|
| Rating | ★4.6(31)Best Buy | ★4.7(36)Best Buy |
Screen Size | 27" Viewable (27" Class) | 27.6" Viewable (28" Class) |
Resolution | 3840 x 2160 (4K UHD) | 2560 x 2880 (SDQHD) |
Aspect Ratio | 16:9 | 16:18 |
Screen Type | IPS Black | Nano IPS |
Refresh Rate | 60 Hz | 60 Hz |
Response Time | 5 ms (GtG Fast) / 8 ms (GtG Normal) | 5 ms (GtG) |
Brightness | 400 nits (Typical) | 300 nits (Typical) |
Contrast | 2,000:1 (Static) | 1,000:1 (Typical) |
Color Gamut | 100% sRGB / 100% Rec.709 / 98% DCI-P3 | 98% DCI-P3 (CIE1976) |
Color Depth | 1.07 Billion (10-bit via 8-bit + FRC) | 1.07 Billion (10-bit) |
HDR | VESA DisplayHDR 400 | HDR10 |
Adaptive Sync | No (Not supported) | No (Not supported) |
Viewing Angles | 178° (H) / 178° (V) | 178° (H) / 178° (V) |
Curvature | Flat | Flat |
Speakers | No (None; compatible with Dell SB521A Soundbar) | 2x 7 W (Stereo with MaxxAudio) |
Ports | 1x HDMI 2.0; 1x DisplayPort 1.4; 1x DisplayPort Out (MST); 1x USB-C (DP Alt, 90W PD); 1x USB-C Upstream (Data/KVM); 1x USB-C Downstream (15W); 4x USB-A 3.2 Gen 2; 1x RJ45 Ethernet; 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 | Yes (90W Power Delivery + Video + Data + Daisy Chain) | Yes (90W Power Delivery + Video + Data) |
Kvm | Yes (Built-in Auto KVM) | Yes (Built-in Auto KVM & PBP) |
Vesa | 100 x 100 mm | 100 x 100 mm |
Ergonomics | Height (150mm), Swivel (-30° to 30°), Pivot (90°), Tilt (-5° to 21°) | Ergo Stand (C-Clamp/Grommet): Extend/Retract (210mm), Swivel (±335°), Pivot (90° CCW), Height (130mm), Tilt (±25°) |
Power Consumption | 26 W (Typical) / 220 W (Max with full Hub load) / 0.3 W (Standby) | 40 W (Typical) / 190 W (Max) / 0.5 W (Sleep) |
Weight With Stand | 6,640 g (14.64 lbs) | 9,000 g (19.8 lbs) |
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Dell UltraSharp U2723QE 27" 4K USB-C Hub Monitor
27" Viewable (27" Class)
3840 x 2160 (4K UHD)
16:9
IPS Black
60 Hz
5 ms (GtG Fast) / 8 ms (GtG Normal)
Pros
- IPS Black technology delivers a 2,000:1 contrast ratio, offering significantly deeper blacks than standard IPS panels
- Acts as a full docking station: One cable provides 90W charging, 4K video, USB data, and wired Ethernet
Cons
- Limited to 60Hz refresh rate, making it unsuitable for gaming or high-motion video work
- No built-in speakers (requires external audio or optional magnetic soundbar)
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 Dell UltraSharp U2723QE 27" 4K USB-C Hub Monitor is the better buy for most people - its higher resolution of 3840 x 2160 crushes the LG DualUp's 2560 x 2880. That said, grab the LG if you prioritize vertical screen real estate and need a unique aspect ratio for multitasking.
Who should buy each?
Choose the Dell UltraSharp U2723QE 27" 4K USB-C Hub Monitor if: you need the best resolution for design work, want a powerful USB-C hub with 90W charging, or require excellent color accuracy for photography.
Choose the LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor if: you prefer a space-saving vertical design, work with multiple applications side by side, or want built-in speakers for an all-in-one solution. (27.6" display, 317.47 oz weight)
Quality Seekers
Higher user rating (4.7★ vs 4.6★) indicates better overall satisfaction
→ Choose LG DualUp
IPS Black technology Priority
IPS Black technology delivers a 2,000:1 contrast ratio, offering significantly deeper blacks than standard IPS panels
→ Choose Dell UltraSharp
Unique 16:18 aspect Priority
Unique 16:18 aspect ratio provides the vertical workspace of two 21.5-inch monitors without the bezel gap
→ Choose LG DualUp
Conclusion
We hope this comparison helps you buy with confidence. Both products are dependable; the right one depends on how you will use it.
Bottom line: The LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor leads with a 4.7★ rating versus 4.6★. That said, Dell UltraSharp U2723QE 27" 4K USB-C Hub Monitor could still be the right pick depending on your specific priorities.
Frequently Asked Questions
+Which is better: Dell UltraSharp U2723QE 27" 4K USB-C Hub Monitor or LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor?
Dell UltraSharp U2723QE 27" 4K USB-C Hub Monitor is the better choice if you prioritize ips black technology delivers a 2,000:1 contrast ratio, offering significantly deeper blacks than standard ips panels. 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 (4.6★ vs 4.7★), so consider your specific needs and budget.
+What are the main differences between Dell UltraSharp U2723QE 27" 4K USB-C Hub Monitor and LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor?
Key differences: Dell UltraSharp U2723QE 27" 4K USB-C Hub Monitor offers ips black technology delivers a 2,000:1 contrast ratio, offering significantly deeper blacks than standard ips panels, 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 Dell UltraSharp U2723QE 27" 4K USB-C Hub Monitor limited to 60hz refresh rate, making it unsuitable for gaming or high-motion video work. 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.
+Where can US buyers get the best price?
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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