Samsung Odyssey OLED G9 49" Curved Gaming Monitor vs LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor
The Samsung Odyssey OLED G9 49" Curved Gaming Monitor is the better buy for gaming enthusiasts due to its staggering 240Hz refresh rate, which crushes the LG DualUp 28MQ780-B's 60Hz. If you're into intense gaming or need a massive immersive experience, this monitor's 49-inch, 32:9 display format is a game-changer. In real-world use, the Samsung's QD-OLED technology offers striking color saturation with a peak brightness of 1,000 nits, making it ideal for gaming and HDR content. Meanwhile, the LG provides a unique 16:18 aspect ratio—great for productivity—yet requires scaling tweaks in various OS. So, if gaming is your primary focus, the choice is clear.
As an Amazon Associate I earn from qualifying purchases.
Samsung Odyssey OLED G9 49" Curved Gaming Monitor
LG DualUp 28MQ780-B 27.6" 16:18 Ergo 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.
Expand
Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
Comparison: Samsung Odyssey OLED G9 49" Curved Gaming Monitor vs LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor
Samsung Odyssey OLED G9 49" Curved Gaming Monitor
LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor
| Criterion | Samsung Odyssey OLED G9 49" Curved Gaming Monitor | LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor |
|---|---|---|
| Rating | ★4.3(1,127)Best Buy | ★4.7(36)Best Buy |
Screen Size | 49" Viewable (49" Class) | 27.6" Viewable (28" Class) |
Resolution | 5120 x 1440 (Dual QHD) | 2560 x 2880 (SDQHD) |
Aspect Ratio | 32:9 | 16:18 |
Screen Type | QD-OLED (Quantum Dot OLED) | Nano IPS |
Refresh Rate | 240 Hz | 60 Hz |
Response Time | 0.03 ms (GtG) | 5 ms (GtG) |
Brightness | 250 nits (Typical) / 1,000 nits (Peak HDR 3% Window) | 300 nits (Typical) |
Contrast | 1,000,000:1 (Static) | 1,000:1 (Typical) |
Color Gamut | 99% DCI-P3 (CIE1976) | 98% DCI-P3 (CIE1976) |
Color Depth | 1.07 Billion (10-bit) | 1.07 Billion (10-bit) |
HDR | VESA DisplayHDR True Black 400 / HDR10+ Gaming | HDR10 |
Adaptive Sync | AMD FreeSync Premium Pro / VESA Adaptive-Sync | No (Not supported) |
Viewing Angles | 178° (H) / 178° (V) | 178° (H) / 178° (V) |
Curvature | 1800R | Flat |
Speakers | 2x 5 W (Stereo) | 2x 7 W (Stereo with MaxxAudio) |
Ports | 1x DisplayPort 1.4; 1x HDMI 2.1; 1x Micro HDMI 2.1; 3x USB 3.0 Hub | 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 | 100 x 100 mm | 100 x 100 mm |
Ergonomics | Height (120mm), Tilt (-2° to 15°); No Swivel or Pivot | Ergo Stand (C-Clamp/Grommet): Extend/Retract (210mm), Swivel (±335°), Pivot (90° CCW), Height (130mm), Tilt (±25°) |
Power Consumption | 75 W (Typical) / 220 W (Max) / 0.5 W (Standby) | 40 W (Typical) / 190 W (Max) / 0.5 W (Sleep) |
Weight With Stand | 12,900 g (28.4 lbs) | 9,000 g (19.8 lbs) |
| Pros |
|
|
| Cons |
|
|
As an Amazon Associate I earn from qualifying purchases. | Check Price on Amazon→ | Check Price on Amazon→ |
Samsung Odyssey OLED G9 49" Curved Gaming Monitor
✓ Pros:
- • Massive 32:9 aspect ratio replaces a dual 27-inch monitor setup with no bezel gap
- • QD-OLED technology offers superior color saturation and brightness compared to standard WOLEDs
- • Built-in Tizen Smart OS allows streaming (Netflix, YouTube) and cloud gaming without a PC
- • Includes a remote control for easy navigation of settings and smart apps
- • Lightning-fast 240Hz refresh rate and 0.03ms response time for ghosting-free gaming
✗ Cons:
- • Standard Samsung warranty in the US does NOT explicitly cover OLED burn-in
- • Micro HDMI 2.1 port requires a specialized cable or adapter (not always included)
- • Text clarity is slightly impacted by the triangular subpixel layout (though improved over Gen 1)
- • Stand is quite deep and lacks swivel adjustment
- • Aggressive ABL (Auto Brightness Limiter) can dim the screen during productivity work
As an Amazon Associate I earn from qualifying purchases.
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)
As an Amazon Associate I earn from qualifying purchases.
Which one is better?
The Samsung Odyssey OLED G9 49" Curved Gaming Monitor is the better buy for most people - its 240Hz refresh rate crushes the LG DualUp's 60Hz. That said, grab the LG if you need a workspace-friendly vertical setup - it offers a unique aspect ratio perfect for multitasking.
Who should buy each?
Choose the Samsung Odyssey OLED G9 49" Curved Gaming Monitor if: you love fast-paced gaming, enjoy immersive visuals, or want a dual-monitor experience without the bezel gap. (49" display, 240 Hz refresh)
Choose the LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor if: you work with vertical content, need USB-C charging for your laptop, or prefer a more compact desk setup. (27.6" display, 60 Hz refresh)
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?
Samsung Odyssey OLED G9 49" Curved Gaming Monitor excels if you value massive 32:9 aspect ratio replaces a dual 27-inch monitor setup with no bezel gap. LG DualUp 28MQ780-B 27.6" 16:18 Ergo Monitor is better if you prioritize unique 16:18 aspect ratio provides the vertical workspace of two 21.5-inch monitors without the bezel gap. 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.
Affiliate disclosure
PageBen uses Amazon affiliate links. If you purchase through our links, we may earn a commission at no extra cost to you. This supports independent content for US shoppers.