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What we think
The PerfectRec monitor team Learn more
Updated April 11, 2024·
If cost is a primary concern and you engage in basic productivity tasks or casual media consumption, the Dell S2721DS could serve you well with its decent screen size and resolution. However, for a more immersive experience in both gaming and media, the LG 34GN850B—with its wider aspect ratio, better refresh rate, and higher peak brightness—would be the stronger choice, albeit at a higher price. Neither monitor is a standout for HDR gaming or professional color work, but the LG's larger screen and features are better suited for a versatile user looking for a balance between work and play. Give Feedback
this description is based on the product variant with some specs and product variant with some specs. At the time of writing, the variant with some specs cost some dollars and the variant with some specs cost some dollars.
Advantages of the Dell S2721DS (IPS)
- Good text clarity
- Good image clarity
Advantages of the LG 34GN850B (IPS)
- Very good response time
Key differences
Competitive Gaming
5.0
4.5
75Hz
REFRESH RATE
144Hz
17.4 ms
TOTAL RESPONSE TIME
6.2 ms
48 - 75 Hz
VARIABLE REFRESH RATE
20 - 160 Hz
No
STROBING / BFI
No
334 nits
SDR PEAK BRIGHTNESS
359 nits
The Dell S2721DS (IPS) and LG 34GN850B (IPS) are both poor for competitive gaming, though the Dell S2721DS (IPS) is somewhat better.
Cost
$309
$750
$0
$200
$400
$600
$800
$1,000
$1,200
The Dell S2721DS (IPS) has a price of $309 and the LG 34GN850B (IPS) costs $750.
Key similarities
Casual Gaming
5.8
5.9
2560 x 1440
RESOLUTION
3440 x 1440
75Hz
REFRESH RATE
144Hz
1015:1
NATIVE CONTRAST
950:1
334 nits
SDR PEAK BRIGHTNESS
359 nits
N/A
HDR PEAK BRIGHTNESS
436 nits
N/A
DCI-P3 COLOR GAMUT
94.5 %
Matte
COATING
Matte
The LG 34GN850B (IPS) and Dell S2721DS (IPS) are both poor for casual gaming.
Productivity
5.9
5.9
2560 x 1440
RESOLUTION
3440 x 1440
109 PPI
PIXELS PER INCH
108 PPI
No
ADJUSTABLE STAND
Yes
Matte
COATING
Matte
The Dell S2721DS (IPS) and LG 34GN850B (IPS) are both poor for productivity.
Media Consumption
5.9
5.9
2560 x 1440
RESOLUTION
3440 x 1440
1015:1
NATIVE CONTRAST
950:1
334 nits
SDR PEAK BRIGHTNESS
359 nits
N/A
HDR PEAK BRIGHTNESS
436 nits
Matte
COATING
Matte
The Dell S2721DS (IPS) and LG 34GN850B (IPS) are both poor for media consumption.
HDR Gaming and Media Consumption
No
No
Both the Dell S2721DS (IPS) and LG 34GN850B (IPS) are not suitable for HDR gaming and media consumption.
Digital Photo Editing
No
No
Both the Dell S2721DS (IPS) and LG 34GN850B (IPS) are not suitable for digital photo editing.
HDR Video Editing and Color Grading
No
No
Both the Dell S2721DS (IPS) and LG 34GN850B (IPS) are not suitable for HDR video editing and color grading.
Print Photo Editing
No
No
Both the Dell S2721DS (IPS) and LG 34GN850B (IPS) are not suitable for print photo editing.
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We’re constantly working to improve.
How the Dell S2721DS (IPS) and the LG 34GN850B (IPS) compare to other monitors
Spec Comparison
 |  | |
| Dell S2721DS (IPS) | LG 34GN850B (IPS) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$309 | $750 | ||
Screen Size | |||
Screen Size | 27" | 34" | |
Resolution | |||
Resolution | 2560 x 1440 | 3440 x 1440 | |
Screen Type | |||
Screen Type | LED | LED | |
Screen Sub-type | |||
Screen Sub-type | IPS | IPS | |
Refresh Rate | |||
Refresh Rate | 75Hz | 144Hz | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | 1015:1 | 950:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 334 nits | 359 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | N/A | 436 nits | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | No | No | |
sRGB Color Gamut | |||
sRGB Color Gamut | 98.6 % | 99 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 17.4 ms | 6.2 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 48 - 75 Hz | 20 - 160 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 5.2/10 | 6.6/10 | |
Ghosting Score | |||
Ghosting Score | 6/10 | 8/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 109 PPI | 108 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 7/10 | 7/10 | |
Image Clarity Score | |||
Image Clarity Score | 7/10 | 7/10 | |
PORTS & CONNECTIVITY | |||
|---|---|---|---|
HDMI 1.4 Ports | |||
HDMI 1.4 Ports | 1 | 0 | |
HDMI 2.0 Ports | |||
HDMI 2.0 Ports | 0 | 2 | |
HDMI 2.1 Ports | |||
HDMI 2.1 Ports | 0 | 0 | |
Micro HDMI Ports | |||
Micro HDMI Ports | 0 | 0 | |
DisplayPort 1.2 Ports | |||
DisplayPort 1.2 Ports | 1 | 0 | |
Shopping
Dell S2721DS (IPS)
See more
Dig into reviews and images
Tech Radar
Ural Garrett | November 2021
"General users or casual PC gamers in need of a solid and affordable QHD monitor with a few extras may walk away satisfied with the Dell S2721D."
LG 34GN850B (IPS)
See more
Dig into reviews and images
TechSpot
Tim Schiesser | August 2020
"Mid-range 3440 x 1440 144Hz VA monitors are ~$500 to $600 these days. You are getting a much better product for the higher price of the LG, with faster response times and better colors (outside of the contrast ratio), but this is definitely a monitor that is reserved for those that want the best of the best and are willing to pay for it."
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Why trust us
This information was produced and vetted by the PerfectRec monitors team. We are a product research and recommendation organization that meticulously reviews and evaluates the latest monitor information and makes it digestible for you.
By the numbers
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About the monitor team
Joe Golden, Ph.D
CEO and Monitors Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
Jason Lew
Staff Expert & Software Engineer
Jason is a staff expert and software engineer that has been making laptop recommendations for 7 years and moderates one of the largest laptop subreddits.
Chandradeep Chowdhury
Staff Expert & Software Engineer
Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.
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