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What we think
The PerfectRec monitor team Learn more
Updated April 22, 2024·
If you prioritize productivity and a crisper text display in your day-to-day tasks, the Sony M9 could be a better choice as it is hailed for productivity use and is more affordable. However, if you are focused on print photo editing and require a higher level of detail and color accuracy, the ViewSonic XG321UG might be worth the extra investment, especially with its superior HDR peak brightness and color gamut coverage for print quality work. For gaming, the Sony M9 is suitable for casual gaming, but the ViewSonic's advanced features like a higher HDR peak brightness may provide a more immersive experience for HDR gaming despite its higher price. Keep in mind, the Sony M9 also supports HDR gaming and media consumption well. Your decision should hinge on the balance between your budget and your need for professional-grade color accuracy or top-tier gaming and HDR media performance. 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 Sony M9 (IPS FALD)
- Good for casual gaming
- Best in class for productivity
- Good for media consumption
- Very good text clarity
- Very good image clarity
- Good contrast
- Good color volume
Advantages of the ViewSonic XG321UG (IPS Mini LED)
- Very good response time
Key differences
Casual Gaming
7.3
6.4
3840 x 2160
RESOLUTION
3440 x 2160
144Hz
REFRESH RATE
144Hz
1000:1
NATIVE CONTRAST
1000:1
432 nits
SDR PEAK BRIGHTNESS
400 nits
695 nits
HDR PEAK BRIGHTNESS
1400 nits
67.7 %
DCI-P3 COLOR GAMUT
Matte
COATING
Matte
The Sony M9 (IPS FALD) is good for casual gaming, while the ViewSonic XG321UG (IPS Mini LED) is only fair.
Competitive Gaming
5.7
4.6
144Hz
REFRESH RATE
144Hz
8.0 ms
TOTAL RESPONSE TIME
3.6 ms
24 - 144 Hz
VARIABLE REFRESH RATE
48,144 Hz
No
STROBING / BFI
No
432 nits
SDR PEAK BRIGHTNESS
400 nits
The Sony M9 (IPS FALD) and ViewSonic XG321UG (IPS Mini LED) are both poor for competitive gaming, though the Sony M9 (IPS FALD) is somewhat better.
Productivity
9.6
7.9
3840 x 2160
RESOLUTION
3440 x 2160
163 PPI
PIXELS PER INCH
137 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Matte
The Sony M9 (IPS FALD) is best in class for productivity, while the ViewSonic XG321UG (IPS Mini LED) is good.
Media Consumption
7.5
6.7
3840 x 2160
RESOLUTION
3440 x 2160
1000:1
NATIVE CONTRAST
1000:1
432 nits
SDR PEAK BRIGHTNESS
400 nits
695 nits
HDR PEAK BRIGHTNESS
1400 nits
Matte
COATING
Matte
The Sony M9 (IPS FALD) is good for media consumption, while the ViewSonic XG321UG (IPS Mini LED) is only fair.
Cost
$800
$2,300
$0
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
The Sony M9 (IPS FALD) has a price of $800 and the ViewSonic XG321UG (IPS Mini LED) costs $2,300.
HDR Gaming and Media Consumption
Yes
No
The Sony M9 (IPS FALD) is suitable for HDR gaming and media consumption while the ViewSonic XG321UG (IPS Mini LED) is not suitable for HDR gaming and media consumption.
Digital Photo Editing
Yes
No
The Sony M9 (IPS FALD) is suitable for digital photo editing while the ViewSonic XG321UG (IPS Mini LED) is not suitable for digital photo editing.
Print Photo Editing
No
Yes
The Sony M9 (IPS FALD) is not suitable for print photo editing while the ViewSonic XG321UG (IPS Mini LED) is suitable for print photo editing.
Key similarities
HDR Video Editing and Color Grading
No
No
Both the Sony M9 (IPS FALD) and ViewSonic XG321UG (IPS Mini LED) are not suitable for HDR video editing and color grading.
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How the Sony M9 (IPS FALD) and the ViewSonic XG321UG (IPS Mini LED) compare to other monitors
Spec Comparison
 |  | |
| Sony M9 (IPS FALD) | ViewSonic XG321UG (IPS Mini LED) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$800 | $2,300 | ||
Screen Size | |||
Screen Size | 27" | 32" | |
Resolution | |||
Resolution | 3840 x 2160 | 3440 x 2160 | |
Screen Type | |||
Screen Type | LED | Mini LED | |
Screen Sub-type | |||
Screen Sub-type | IPS FALD | IPS | |
Local Dimming Zones | |||
Local Dimming Zones | 96 | 1152 | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | 1000:1 | 1000:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 432 nits | 400 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | 695 nits | 1400 nits | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | No | |
sRGB Color Gamut | |||
sRGB Color Gamut | 100 % | ||
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 8 ms | 3.6 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 24 - 144 Hz | 48,144 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 6.6/10 | 6.6/10 | |
Ghosting Score | |||
Ghosting Score | 7.6/10 | 8.4/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 163 PPI | 137 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 8/10 | 7.9/10 | |
Image Clarity Score | |||
Image Clarity Score | 8/10 | 7.9/10 | |
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 | 2 | 0 | |
Micro HDMI Ports | |||
Micro HDMI Ports | 0 | 0 | |
DisplayPort 1.2 Ports | |||
DisplayPort 1.2 Ports | 0 | 0 | |
Give feedback
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Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
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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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