The Dell S2421H is an entry-level gaming monitor that made its first appearance in 2020, promising advanced gaming features to users on a budget. It has FreeSync tech, reducing screen tearing on monitors with compatible graphics cards. This device has a Full HD resolution, offering a decent pixel pitch. Gamers will be pleased with this monitor’s outstanding input lag and fast minimum response time. The device boasts an IPS panel, providing impressively wide viewing angles and the matte finish delivers good reflection handling. Continue to the end of this Dell S2421H review, and explore how it stacks up against the best computer monitors in the industry.
40
out of
196
Computer Monitors
Dell S2421H Review
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Updated Dec 21, 2023 3:49 PM
Published
True Score
True Score is an AI-powered algorithm of product tests and customer reviews.
83
Absolutely Fresh
81
2
Experts
91
2,886
Consumers
Expert Rankings
(
2
)
Product testers were pleased with the Dell S2421H, recommending it for moderate gaming and office use. They liked its low input lag, decent response time, and FreeSync tech. However, this unit’s small design is not immersive and some users may be better served by 27-inch models such as the Lenovo D27-30. It also has a relatively low refresh rate.
$299.99
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Product Snapshot
Overview
The Dell S2421H is an entry-level gaming monitor that made its first appearance in 2020, promising advanced gaming features to users on a budget. It has FreeSync tech, reducing screen tearing on monitors with compatible graphics cards. This device has a Full HD resolution, offering a decent pixel pitch. Gamers will be pleased with this monitor’s outstanding input lag and fast minimum response time. The device boasts an IPS panel, providing impressively wide viewing angles and the matte finish delivers good reflection handling. Continue to the end of this Dell S2421H review, and explore how it stacks up against the best computer monitors in the industry.
Rankings (recommended in)
Best For
1080p
24-Inch
Budget
Consensus
our Verdict
Product analysts lauded the Dell S2421H and endorsed it for moderate gaming. Unlike the Dell E2220H, this Dell monitor proved to have wide horizontal and vertical viewing angles during testing, which are typical of IPS panels. They were amazed by its very low input lag and good response time. This monitor supports FreeSync and tests confirmed that it reduces screen tearing. Unlike QHD competitors such as the Dell S2721D, this monitor has a Full HD screen, but reviewers at RTINGS say that it has acceptable pixel density, which supports working with text applications. Analysts at Monitor Nerds were pleased that this monitor gets really bright and it showed good reflection management qualities during testing. It has an excellent sRGB color space, and experts believe it’s a good pick for light content creation. However, reviewers were disappointed by this monitor’s low 75Hz refresh rate, and its competitor, the Samsung Odyssey G3 S24AG30 has a higher refresh rate. This Dell display also has a small screen, which is not as immersive as bigger 27-inch and 32-inch monitors.
ReasonS to Buy
- Excellent 7.4 ms input lag
- Decent 7.5 ms response time
- FreeSync support
- Very wide horizontal and viewing angles
- Good reflection handling
Reason to Avoid
- Stand supports only limited adjustment
- Lacks DisplayPort connector
- Relatively small screen
- So-so text clarity
- Low 1,126:1 contrast ratio
Dell S2421H Specs
| Display Type | LCD | |
| HDMI Inputs | 2 | |
| HDR Format | n/a | |
| Max Resolution | 1920 x 1080 (Full HD) | |
 | Panel Type | IPS |
| Refresh Rate | 75 Hz | |
 | Response Time | 4 ms |
| Screen size | 24" | |
 | Sync Technology | AMD FreeSync |
All Specs
Test Results
These are the most important criteria to test for Computer Monitors based on our comprehensive Testing Methodology.
| Brightness (nits) | 250 |
| Contrast Ratio (as ratio x:1) | 1,126 |
| Color Gamut/Accuracy % (DCI P3 xy) | 0 |
| Color Gamut/Accuracy % (DCI P3 uv) | 0 |
| Color Gamut % (sRGB Coverage xy) | 95.9 |
| Color Gamut % (Adobe RGB Coverage xy) | 73.9 |
| Color Gamut % (Rec. 2020 Coverage xy) | 0 |
| Color Gamut % (Rec. 709 Coverage xy) | 0 |
| Input Lag (ms) | 8.9 |
| Response Time (ms) | 7.2 |
| Horizontal Viewing Angle (Washout Left) | 36 |
| Horizontal Viewing Angle (Washout Right) | 39 |
| Vertical Viewing Angle (Washout Above) | 32 |
| Vertical Viewing Angle (Washout Below) | 32 |
| Reflections % (Total Reflections) | 5.1 |
All Tests
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Product Comparison
 Dell S2421H Review |  BenQ 24 Inch IPS Monitor Review | |||
|---|---|---|---|---|
True Score | 83 | 85 | NR | NR |
Ranking | # 40 / 196 | # 13 / 196 | # / 196 | # / |
Market Context |
The Dell S2421H is an entry-level gaming monitor that made its first appearance in 2020, promising advanced gaming features to users on a budget. It… |
The Dell S2421H has better viewing angles than the ASUS VG248QG, which is equipped with a TN panel. Also, while the Dell monitor comes with… The Dell S2421H has better viewing angles than the ASUS VG248QG, which is equipped with a TN panel. Also, while the Dell monitor comes with a glossy anti-reflective coating, the ASUS monitor features a matte coating. |
The Dell S2421H has a faster response time than the older BenQ GW2480. Additionally, the Dell monitor has an anti-glare matte coating, which is not… The Dell S2421H has a faster response time than the older BenQ GW2480. Additionally, the Dell monitor has an anti-glare matte coating, which is not present on the BenQ device. |
The Dell S2421H is very similar to the Dell S2421HN, being part of the same Series. Unlike the Dell S2421H (this review), the Dell S2421HN… The Dell S2421H is very similar to the Dell S2421HN, being part of the same Series. Unlike the Dell S2421H (this review), the Dell S2421HN doesn’t have built-in speakers. |
Display Type | LCD | LED | – | – |
HDMI Inputs | 2 | 1 | – | – |
HDR Format | n/a | Yes | – | – |
Max Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) | – | – |
Panel Type | IPS | TN | – | – |
Refresh Rate | 75 Hz | 165 Hz | – | – |
Response Time | 4 ms | 1 ms | – | – |
Screen size | 24" | 24" | – | – |
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Score Card
E
Expert Score
81
*.75
We place a 75% weighted value on Expert Test Scores
C
Customer Score
91
*.25
We place a 25% weighted value on Customer Scores
True Score
83
Any product with a True Score above 70 is a Mixed Reviews
Expert Scores
Publications with higher Trust Ratings are given more weight.
101.4Category Trust Rating
67The Dell S2421H is an okay monitor for most uses. It’s decent for office use,… Read MoreBy:
Unknown
9.95Category Trust Rating
77“No bottom line found for this product” Read MoreBy:
Samuel Breton
Customer Scores
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