A comparison of specs, key information, reviews, and best pricing from top retailers
Last updated -- hours ago | Report incorrect information
Company ProductName Specs
Company ProductName Specs
What we think
The PerfectRec monitor team Learn more
Updated April 11, 2024·
If you're seeking an expansive and immersive gaming or media consumption experience and willing to invest in premium quality, the AOC PD49, with its larger screen and superior contrast, would be excellent, though it's not ideal for productivity due to its wide aspect ratio and fair text quality. On the other hand, if you're looking for a monitor that's better suited to general productivity and digital photo editing at a lower cost, the Dell S2721QS offers a sharp image and very good text clarity on a smaller screen, but it won't match the AOC in terms of gaming performance or color depth. 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 AOC PD49 (QD-OLED)
- Best in class for casual gaming
- Best in class for media consumption
- Very good refresh rate
- Best in class contrast
- Best in class brightness
- Best in class color volume
- Best in class response time
Advantages of the Dell S2721QS (IPS)
- Good for productivity
- Very good text clarity
- Very good image clarity
Key differences
Casual Gaming
9.9
5.9
5120 x 1440
RESOLUTION
3840 x 2160
240Hz
REFRESH RATE
60Hz
Inf:1
NATIVE CONTRAST
1221:1
1000 nits
SDR PEAK BRIGHTNESS
373 nits
Unknown
HDR PEAK BRIGHTNESS
386 nits
99.0 %
DCI-P3 COLOR GAMUT
85.2 %
Matte
COATING
Matte
The AOC PD49 (QD-OLED) is best in class for casual gaming, while the Dell S2721QS (IPS) is poor.
Competitive Gaming
6.7
4.9
240Hz
REFRESH RATE
60Hz
0.0 ms
TOTAL RESPONSE TIME
14.5 ms
48 - 240 Hz
VARIABLE REFRESH RATE
40 - 60 Hz
No
STROBING / BFI
No
1000 nits
SDR PEAK BRIGHTNESS
373 nits
The AOC PD49 (QD-OLED) is only fair for competitive gaming, while the Dell S2721QS (IPS) is poor.
Productivity
5.9
7.9
5120 x 1440
RESOLUTION
3840 x 2160
108 PPI
PIXELS PER INCH
164 PPI
No
ADJUSTABLE STAND
Yes
Matte
COATING
Matte
The Dell S2721QS (IPS) is good for productivity, while the AOC PD49 (QD-OLED) is poor.
Media Consumption
9.8
6.7
5120 x 1440
RESOLUTION
3840 x 2160
Inf:1
NATIVE CONTRAST
1221:1
1000 nits
SDR PEAK BRIGHTNESS
373 nits
Unknown
HDR PEAK BRIGHTNESS
386 nits
Matte
COATING
Matte
The AOC PD49 (QD-OLED) is best in class for media consumption, while the Dell S2721QS (IPS) is only fair.
Cost
$2,350
$230
$0
$1,000
$2,000
$3,000
$4,000
The AOC PD49 (QD-OLED) has a price of $2,350 and the Dell S2721QS (IPS) costs $230.
HDR Gaming and Media Consumption
Yes
No
The AOC PD49 (QD-OLED) is suitable for HDR gaming and media consumption while the Dell S2721QS (IPS) is not suitable for HDR gaming and media consumption.
Digital Photo Editing
No
Yes
The AOC PD49 (QD-OLED) is not suitable for digital photo editing while the Dell S2721QS (IPS) is suitable for digital photo editing.
HDR Video Editing and Color Grading
Yes
No
The AOC PD49 (QD-OLED) is suitable for HDR video editing and color grading while the Dell S2721QS (IPS) is not suitable for HDR video editing and color grading.
Print Photo Editing
Yes
No
The AOC PD49 (QD-OLED) is suitable for print photo editing while the Dell S2721QS (IPS) is not suitable for print photo editing.
Give feedback
We’re constantly working to improve.
How the AOC PD49 (QD-OLED) and the Dell S2721QS (IPS) compare to other monitors
Spec Comparison
 |  | |
| AOC PD49 (QD-OLED) | Dell S2721QS (IPS) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$2,350 | $230 | ||
Screen Size | |||
Screen Size | 49" | 27" | |
Resolution | |||
Resolution | 5120 x 1440 | 3840 x 2160 | |
Screen Type | |||
Screen Type | OLED | LED | |
Screen Sub-type | |||
Screen Sub-type | QD-OLED | IPS | |
Refresh Rate | |||
Refresh Rate | 240Hz | 60Hz | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | 1221:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 1000 nits | 373 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | Unknown | 386 nits | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | No | |
sRGB Color Gamut | |||
sRGB Color Gamut | 99 % | 100 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 0.03 ms | 14.5 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 48 - 240 Hz | 40 - 60 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 8/10 | 5/10 | |
Ghosting Score | |||
Ghosting Score | 10/10 | 6/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 108 PPI | 164 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 6.6/10 | 8.1/10 | |
Image Clarity Score | |||
Image Clarity Score | 7/10 | 8.1/10 | |
PORTS & CONNECTIVITY | |||
|---|---|---|---|
HDMI 1.4 Ports | |||
HDMI 1.4 Ports | 0 | 0 | |
HDMI 2.0 Ports | |||
HDMI 2.0 Ports | 0 | 2 | |
HDMI 2.1 Ports | |||
HDMI 2.1 Ports | 2 | 0 | |
Micro HDMI Ports | |||
Micro HDMI Ports | 0 | 0 | |
DisplayPort 1.2 Ports | |||
DisplayPort 1.2 Ports | 0 | 1 | |
Shopping
Dell S2721QS (IPS)
See more
Dig into reviews and images
Tom's Hardware
Scharon Harding | September 2021
"The Dell S2721QS 4K monitor brings IPS-level colors and some handy features, like a versatile stand with height adjustments and picture-in-picture for connecting dual systems. But don’t get it for HDR."
Give feedback
We're constantly perfecting our model
More comparisons for you
Compare AOC PD49 (QD-OLED) vs. ViewSonic XG321UG (IPS Mini LED)
VS
Compare AOC PD49 (QD-OLED) vs. Asus PA27DCE (W-OLED)
VS
Compare AOC PD49 (QD-OLED) vs. LG 27EQ850 (W-OLED)
VS
Compare Dell S2721QS (IPS) vs. MSI G273QPF (IPS)
VS
Compare Dell S2721QS (IPS) vs. ViewSonic XG2431 (IPS)
VS
Compare Dell S2721QS (IPS) vs. KTC H27T22 (IPS)
VS
FAQs
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
210
Monitors evaluated
10,500
Monitors stats compiled
15
Proprietary Monitors ratings developed
107,600
Recommendations made
16,140
Consumer hours saved
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.
Featured in
