Dell S2721QS 27" 4K UHD IPS Monitor vs KOORUI 24E3 165Hz Gaming Monitor
If you are torn between Dell S2721QS 27" 4K UHD IPS Monitor and KOORUI 24E3 165Hz Gaming Monitor, this breakdown is for you. We compare specs, pros, and cons so you can decide confidently.
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Dell S2721QS 27" 4K UHD IPS Monitor
KOORUI 24E3 165Hz Gaming Monitor
Comparison: Dell S2721QS 27" 4K UHD IPS Monitor vs KOORUI 24E3 165Hz Gaming Monitor
Dell S2721QS 27" 4K UHD IPS Monitor
KOORUI 24E3 165Hz Gaming Monitor
| Criterion | Dell S2721QS 27" 4K UHD IPS Monitor | KOORUI 24E3 165Hz Gaming Monitor |
|---|---|---|
| Rating | ★4.9(24)Best Buy | ★4.3(3,500)Amazon |
Screen Size | 27" Viewable (27" Class) | 23.8" Viewable (24" Class) |
Resolution | 3840 x 2160 (4K UHD) | 1920 x 1080 (FHD) |
Aspect Ratio | 16:9 | 16:9 |
Screen Type | IPS (In-Plane Switching) | IPS (Fast IPS) |
Refresh Rate | 60 Hz | 165 Hz (via DisplayPort) / 144 Hz (via HDMI) |
Response Time | 4 ms (Gray-to-Gray Extreme Mode) | 1 ms (GtG) |
Brightness | 350 nits (Typical) | 250 nits (Typical) |
Contrast | 1,300:1 (Typical) | 1,000:1 (Static) / 20,000,000:1 (Dynamic) |
Color Gamut | 99% sRGB | 99% sRGB / 72% NTSC |
Color Depth | 1.07 Billion (10-bit via 8-bit + FRC) | 16.7M (8-bit) |
HDR | HDR Playback Support (Not VESA Certified) | No (Not supported) |
Adaptive Sync | AMD FreeSync (40Hz - 60Hz) | AMD FreeSync (G-Sync Compatible) |
Viewing Angles | 178° (H) / 178° (V) | 178° (H) / 178° (V) |
Curvature | Flat | Flat |
Speakers | 2x 3 W (Stereo) | No (None) |
Ports | 2x HDMI 2.0; 1x DisplayPort 1.2; 1x 3.5mm Audio Line-out | 2x HDMI 1.4; 1x DisplayPort 1.2; 1x 3.5mm Audio Out |
USB C | No | No |
Kvm | No | No |
Vesa | 100 x 100 mm | 75 x 75 mm |
Ergonomics | Height (110mm), Tilt (-5° to 21°), Swivel (-30° to 30°), Pivot (90°) | Tilt only (-5° to 20°) |
Power Consumption | 28 W (Typical) / 52 W (Max) / 0.3 W (Standby) | 30 W (Max) / 0.5 W (Standby) |
Weight With Stand | 6,400 g (14.11 lbs) | 3,060 g (6.75 lbs) |
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Dell S2721QS 27" 4K UHD IPS Monitor
✓ Pros:
- • Razor-sharp 4K resolution (163 PPI) delivers excellent text clarity
- • Fully adjustable ergonomic stand (Height, Pivot, Swivel, Tilt) included
- • High 1,300:1 contrast ratio is better than the standard 1,000:1 found on most IPS panels
- • Modern design with ultra-thin bezels on three sides and a textured silver back
- • Supports Picture-by-Picture (PBP) and Picture-in-Picture (PIP) for multitasking
✗ Cons:
- • Limited to 60Hz, making it less suitable for fast-paced gaming
- • Lacks USB-C connectivity and USB data hub
- • HDR support is software-based 'playback' only; lacks local dimming for true HDR
- • Response time overdrive (Extreme mode) can cause inverse ghosting artifacts
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KOORUI 24E3 165Hz Gaming Monitor
✓ Pros:
- • True Fast IPS panel delivers 1ms response times with vibrant 99% sRGB colors
- • High 165Hz refresh rate (via DisplayPort) for competitive esports gaming
- • Supports AMD FreeSync Premium to eliminate screen tearing
- • Includes both DisplayPort and two HDMI ports for connecting multiple devices
- • VESA 75x75mm mountable, allowing for aftermarket arm upgrades
✗ Cons:
- • Stand ergonomics are poor (Tilt only; no height adjustment)
- • HDMI ports are limited to 144Hz (must use DisplayPort for full 165Hz)
- • No built-in speakers
- • Controls are basic and the OSD menu can be clunky to navigate
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Which one is better?
Dell S2721QS 27" 4K UHD IPS Monitor is stronger in quality and performance, but KOORUI 24E3 165Hz Gaming Monitor could still be the better pick if you value its unique advantages.
Who should buy each?
For performance and polish: Dell S2721QS 27" 4K UHD IPS Monitor (Razor-sharp 4K resolution (163 PPI) delivers excellent text clarity, Fully adjustable ergonomic stand (Height, Pivot, Swivel, Tilt) included)
For value or versatility: KOORUI 24E3 165Hz Gaming Monitor (True Fast IPS panel delivers 1ms response times with vibrant 99% sRGB colors, High 165Hz refresh rate (via DisplayPort) for competitive esports gaming)
Conclusion
With the key differences outlined, the decision should be clearer. Both options deliver quality—choose the one that fits your priorities.
Frequently Asked Questions
+Which has better value?
Dell S2721QS 27" 4K UHD IPS Monitor excels if you value razor-sharp 4k resolution (163 ppi) delivers excellent text clarity. KOORUI 24E3 165Hz Gaming Monitor is better if you prioritize true fast ips panel delivers 1ms response times with vibrant 99% srgb colors. 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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