Acer SB220Q bi 21.5" FHD IPS Monitor vs Acer Nitro KF240Y bmiipx 23.8" FHD Monitor
The Acer Nitro KF240Y bmiipx 23.8" FHD Monitor is the smarter buy for most people - its 165Hz refresh rate crushes the Acer SB220Q bi 21.5" FHD IPS Monitor's 75Hz. If you're into gaming or smooth video playback, this difference is massive. In real-world use, that overclockable refresh rate means better responsiveness, especially in fast-paced scenarios. Plus, the Nitro's size at 23.8 inches provides more screen real estate compared to the SB220Q's 21.5 inches, making it ideal for multitasking or immersive gaming sessions. Key specs: Display: 21.5" vs 23.8" and Refresh: 75 Hz vs 165 Hz.
Why compare these? Both the Acer SB220Q bi 21.5" FHD IPS Monitor and Acer Nitro KF240Y bmiipx 23.8" FHD Monitor are budget-friendly monitors competing in the same market segment. This makes them direct rivals for buyers looking for budget-friendly 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 | Acer SB220Q | Acer Nitro |
|---|---|---|
| User Rating | 4.6★ (42,572 reviews) | 4.6★ (4,309 reviews) |
| Top Strength | Ultra-thin 'Zero Frame' design looks modern and saves desk space | IPS panel ensures consistent colors and wide viewing angles ideal for mixed use |
| Main Drawback | Lacks VESA mount compatibility (cannot be mounted on arms or walls) | Stand lacks height, swivel, and pivot adjustments (Tilt only) |
| Market Position | Budget | Budget |

Acer SB220Q bi 21.5" FHD IPS Monitor
21.5" Viewable
1920 x 1080 (FHD)
16:9
IPS (In-Plane Switching)

Acer Nitro KF240Y bmiipx 23.8" FHD Monitor
23.8" Viewable (24" Class)
1920 x 1080 (FHD)
16:9
IPS (In-Plane Switching)
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: Acer SB220Q bi 21.5" FHD IPS Monitor vs Acer Nitro KF240Y bmiipx 23.8" FHD Monitor

Acer SB220Q bi 21.5" FHD IPS Monitor

Acer Nitro KF240Y bmiipx 23.8" FHD Monitor
| Criterion | Acer SB220Q bi 21.5" FHD IPS Monitor | Acer Nitro KF240Y bmiipx 23.8" FHD Monitor |
|---|---|---|
| Rating | ★4.6(42,572)Amazon | ★4.6(4,309)Amazon |
Screen Size | 21.5" Viewable | 23.8" Viewable (24" Class) |
Resolution | 1920 x 1080 (FHD) | 1920 x 1080 (FHD) |
Aspect Ratio | 16:9 | 16:9 |
Screen Type | IPS (In-Plane Switching) | IPS (In-Plane Switching) |
Refresh Rate | 75 Hz (via HDMI) / 60 Hz (via VGA) | 144 Hz (Native) / 165 Hz (Overclock) |
Response Time | 4 ms (GtG) | 2 ms (GtG) / 0.5 ms (Min) |
Brightness | 250 nits (cd/m²) | 250 nits (cd/m²) |
Contrast | 1,000:1 (Static) / 100,000,000:1 (Dynamic) | 1,000:1 (Static) / 100,000,000:1 (Dynamic) |
Color Gamut | 72% NTSC (Approx. 99% sRGB) | 99% sRGB |
Color Depth | 16.7M (6-bit + FRC) | 16.7M (6-bit + FRC) |
HDR | No (Not supported) | HDR10 (Software support) |
Adaptive Sync | AMD Radeon FreeSync (48-75Hz range via HDMI) | AMD FreeSync Premium |
Viewing Angles | 178° (H) / 178° (V) | 178° (H) / 178° (V) |
Curvature | Flat | Flat |
Speakers | No (None) | 2x 2 W (Stereo) |
Ports | 1x HDMI 1.4; 1x VGA | 2x HDMI 2.0; 1x DisplayPort 1.2; 1x 3.5mm Audio Out |
USB C | No | No |
Kvm | No | No |
Vesa | No (Not VESA compatible) | 100 x 100 mm |
Ergonomics | Tilt only (-5° to 15°) | Tilt only (-5° to 20°) |
Power Consumption | 24 W (Typical) / 0.45 W (Standby) | 20 W (Typical) / 0.5 W (Standby) |
Weight With Stand | 2,480 g (5.47 lbs) | 4,930 g (10.87 lbs) |
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Acer SB220Q bi 21.5" FHD IPS Monitor
21.5" Viewable
1920 x 1080 (FHD)
16:9
IPS (In-Plane Switching)
75 Hz (via HDMI) / 60 Hz (via VGA)
4 ms (GtG)
Pros
- Ultra-thin 'Zero Frame' design looks modern and saves desk space
- IPS panel ensures consistent colors and wide viewing angles (178°)
Cons
- Lacks VESA mount compatibility (cannot be mounted on arms or walls)
- No built-in audio or headphone jack

Acer Nitro KF240Y bmiipx 23.8" FHD Monitor
23.8" Viewable (24" Class)
1920 x 1080 (FHD)
16:9
IPS (In-Plane Switching)
144 Hz (Native) / 165 Hz (Overclock)
2 ms (GtG) / 0.5 ms (Min)
Pros
- IPS panel ensures consistent colors and wide viewing angles ideal for mixed use
- 165Hz overclockable refresh rate provides smooth motion for competitive gaming
Cons
- Stand lacks height, swivel, and pivot adjustments (Tilt only)
- Peak brightness (250 nits) is standard and may struggle in bright rooms
Which one is better?
The Acer Nitro KF240Y bmiipx 23.8" FHD Monitor is the better buy for most people - its 165Hz refresh rate crushes the Acer SB220Q bi 21.5" FHD IPS Monitor's 75Hz. That said, grab the Acer SB220Q if you need a smaller, lightweight monitor for casual use - it's 2.3 inches smaller and easier to fit in tight spaces.
Who should buy each?
Choose the Acer SB220Q bi 21.5" FHD IPS Monitor if: you need a compact display for a small desk, you're looking for a lightweight monitor under 5.5 lbs, or you want a budget-friendly secondary screen.
Choose the Acer Nitro KF240Y bmiipx 23.8" FHD Monitor if: you game frequently and want a higher refresh rate, you work with multiple applications side by side, or you prefer built-in audio for convenience. (23.8" display, 165 Hz refresh)
Safe Choice Buyers
More widely tested with 42,572 reviews vs 4,309
→ Choose Acer SB220Q
Ultra-thin 'Zero Frame' Priority
Ultra-thin 'Zero Frame' design looks modern and saves desk space
→ Choose Acer SB220Q
IPS panel ensures Priority
IPS panel ensures consistent colors and wide viewing angles ideal for mixed use
→ Choose Acer Nitro
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: Both products share a 4.6★ rating, making this comparison particularly close. Your decision should come down to which specific features matter most to you.
Frequently Asked Questions
+Which is better: Acer SB220Q bi 21.5" FHD IPS Monitor or Acer Nitro KF240Y bmiipx 23.8" FHD Monitor?
Acer SB220Q bi 21.5" FHD IPS Monitor is the better choice if you prioritize ultra-thin 'zero frame' design looks modern and saves desk space. Acer Nitro KF240Y bmiipx 23.8" FHD Monitor wins if you value ips panel ensures consistent colors and wide viewing angles ideal for mixed use. Both are rated highly (4.6★ vs 4.6★), so consider your specific needs and budget.
+What are the main differences between Acer SB220Q bi 21.5" FHD IPS Monitor and Acer Nitro KF240Y bmiipx 23.8" FHD Monitor?
Key differences: Acer SB220Q bi 21.5" FHD IPS Monitor offers ultra-thin 'zero frame' design looks modern and saves desk space, while Acer Nitro KF240Y bmiipx 23.8" FHD Monitor stands out with ips panel ensures consistent colors and wide viewing angles ideal for mixed use. Consider that Acer SB220Q bi 21.5" FHD IPS Monitor lacks vesa mount compatibility (cannot be mounted on arms or walls). Meanwhile, Acer Nitro KF240Y bmiipx 23.8" FHD Monitor stand lacks height, swivel, and pivot adjustments (tilt only). 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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