Dell S2721QS 27" 4K UHD IPS Monitor vs Acer SB220Q bi 21.5" FHD IPS Monitor
Dell S2721QS 27" 4K UHD IPS Monitor vs Acer SB220Q bi 21.5" FHD IPS Monitor: which is the right fit? We cover performance, value, and use cases to make the call easier.
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Dell S2721QS 27" 4K UHD IPS Monitor
Acer SB220Q bi 21.5" FHD IPS Monitor
Comparison: Dell S2721QS 27" 4K UHD IPS Monitor vs Acer SB220Q bi 21.5" FHD IPS Monitor
Dell S2721QS 27" 4K UHD IPS Monitor
Acer SB220Q bi 21.5" FHD IPS Monitor
| Criterion | Dell S2721QS 27" 4K UHD IPS Monitor | Acer SB220Q bi 21.5" FHD IPS Monitor |
|---|---|---|
| Rating | ★4.9(24)Best Buy | ★4.6(43,282)Amazon |
Screen Size | 27" Viewable (27" Class) | 21.5" Viewable |
Resolution | 3840 x 2160 (4K UHD) | 1920 x 1080 (FHD) |
Aspect Ratio | 16:9 | 16:9 |
Screen Type | IPS (In-Plane Switching) | IPS (In-Plane Switching) |
Refresh Rate | 60 Hz | 75 Hz (via HDMI) / 60 Hz (via VGA) |
Response Time | 4 ms (Gray-to-Gray Extreme Mode) | 4 ms (GtG) |
Brightness | 350 nits (Typical) | 250 nits (cd/m²) |
Contrast | 1,300:1 (Typical) | 1,000:1 (Static) / 100,000,000:1 (Dynamic) |
Color Gamut | 99% sRGB | 72% NTSC (Approx. 99% sRGB) |
Color Depth | 1.07 Billion (10-bit via 8-bit + FRC) | 16.7M (6-bit + FRC) |
HDR | HDR Playback Support (Not VESA Certified) | No (Not supported) |
Adaptive Sync | AMD FreeSync (40Hz - 60Hz) | AMD Radeon FreeSync (48-75Hz range via HDMI) |
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 | 1x HDMI 1.4; 1x VGA |
USB C | No | No |
Kvm | No | No |
Vesa | 100 x 100 mm | No (Not VESA compatible) |
Ergonomics | Height (110mm), Tilt (-5° to 21°), Swivel (-30° to 30°), Pivot (90°) | Tilt only (-5° to 15°) |
Power Consumption | 28 W (Typical) / 52 W (Max) / 0.3 W (Standby) | 24 W (Typical) / 0.45 W (Standby) |
Weight With Stand | 6,400 g (14.11 lbs) | 2,480 g (5.47 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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Acer SB220Q bi 21.5" FHD IPS Monitor
✓ Pros:
- • Ultra-thin 'Zero Frame' design looks modern and saves desk space
- • IPS panel ensures consistent colors and wide viewing angles (178°)
- • 75Hz refresh rate with FreeSync provides smoother gaming than standard 60Hz panels
- • Excellent value for a secondary display or compact primary monitor
- • Lightweight (under 5.5 lbs) makes it easy to move or reposition
✗ Cons:
- • Lacks VESA mount compatibility (cannot be mounted on arms or walls)
- • No built-in audio or headphone jack
- • Stand is basic with no height, swivel, or pivot adjustments
- • Limited connectivity (only 1x HDMI and 1x VGA; no DisplayPort)
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Which one is better?
Looking at user satisfaction (Dell S2721QS 27" 4K UHD IPS Monitor: 4.9★ vs Acer SB220Q bi 21.5" FHD IPS Monitor: 4.6★), Dell S2721QS 27" 4K UHD IPS Monitor pulls ahead. The gap is small—choose based on the priorities below.
Who should buy each?
Choose Dell S2721QS 27" 4K UHD IPS Monitor if:
- You want Razor-sharp 4K resolution (163 PPI) delivers excellent text clarity, Fully adjustable ergonomic stand (Height, Pivot, Swivel, Tilt) included
- Rating: 4.9★ (24 reviews)
Choose Acer SB220Q bi 21.5" FHD IPS Monitor if:
- You prefer Ultra-thin 'Zero Frame' design looks modern and saves desk space, IPS panel ensures consistent colors and wide viewing angles (178°)
- Rating: 4.6★ (43282 reviews)
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?
Dell S2721QS 27" 4K UHD IPS Monitor excels if you value razor-sharp 4k resolution (163 ppi) delivers excellent text clarity. Acer SB220Q bi 21.5" FHD IPS Monitor is better if you prioritize ultra-thin 'zero frame' design looks modern and saves desk space. 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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