Products
Dell S2722DGM
Samsung Odyssey G55A S27AG55
Tested using Methodology v1.2
Updated Aug 28, 2025 04:57 PM
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Amazon.com
Tested using Methodology v2.0.1
Updated Aug 11, 2025 03:35 PM
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Max Refresh Rate
165 Hz
Size
27"
Pixel Type
VA
Native Resolution
2560 x 1440
Variable Refresh Rate
Yes
HDR10
No
Max Refresh Rate
165 Hz
Size
27"
Pixel Type
VA
Native Resolution
2560 x 1440
Variable Refresh Rate
Yes
HDR10
Yes
Our Verdict
Dell S2722DGM
Samsung Odyssey G55A S27AG55
The Dell S2722DGM is much better than the Samsung Odyssey G55A S27AG55. The Dell has a much faster response time, so motion in games looks much clearer. The Dell also gets a lot brighter, so it can handle more glare and a brighter viewing environment. The Dell also has a slightly better viewing angle, so the image doesn't degrade as much if you're sitting slightly to the side.
Variants
- S2722DGM (27")
- LS27AG550ENXZA (27")
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27"
S2722DGM
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27"
LS27AG550ENXZA
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Amazon.com
27"
S2722DGM
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27"
LS27AG550ENXZA
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27"
S2722DGM
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27"
LS27AG550ENXZA
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S2722DGM
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27"
LS27AG550ENXZA
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27"
LS27AG550ENXZA
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Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
7.0
Full Comparison
Design
Style
Design Picture
Curved
Yes
Yes
Curve Radius
1500R
1000R
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
7.5
7.0
Build Quality Picture
Ergonomics
6.0
4.1
Ergonomics Picture
Back Picture
Height Adjustment
3.9" (10.0 cm)
0.0" (0.0 cm)
Min Height To Top Of Panel
18.1" (45.9 cm)
Tilt Range
-20° to 5°
-17.5° to 2.5°
Rotate Portrait/Landscape
No
No
Swivel Range
No swivel
No swivel
Wall Mount
VESA 100x100
VESA 75x75
Stand
Stand Picture
Thickness Picture
Base Width
9.1" (23.0 cm)
21.7" (55.0 cm)
Base Depth
7.6" (19.2 cm)
10.9" (27.6 cm)
Thickness (With Display)
6.4" (16.2 cm)
9.1" (23.0 cm)
Weight (With Display)
12.8 lbs (5.8 kg)
9.9 lbs (4.5 kg)
Display
Display Picture
Size
27"
27"
Housing Width
24.1" (61.1 cm)
24.2" (61.5 cm)
Housing Height
14.4" (36.6 cm)
15.0" (38.2 cm)
Thickness (Without Stand)
3.7" (9.4 cm)
4.1" (10.5 cm)
Weight (Without Stand)
9.3 lbs (4.2 kg)
9.0 lbs (4.1 kg)
Borders Size (Bezels)
0.3" (0.8 cm)
0.4" (1.0 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
Internal
External Brick
Picture Quality
Contrast
7.8
7.6
Checkerboard Picture
Native Contrast
2,948 : 1
2,521 : 1
Contrast With Local Dimming
N/A
N/A
Local Dimming
0.0
0.0
Local Dimming Video
Local Dimming
No
No
Backlight
Edge
Edge
SDR Brightness
8.2
6.8
Real Scene
401 cd/m²
245 cd/m²
Peak 2% Window
389 cd/m²
238 cd/m²
Peak 10% Window
390 cd/m²
257 cd/m²
Peak 25% Window
390 cd/m²
257 cd/m²
Peak 50% Window
390 cd/m²
257 cd/m²
Peak 100% Window
389 cd/m²
257 cd/m²
Sustained 2% Window
388 cd/m²
237 cd/m²
Sustained 10% Window
390 cd/m²
256 cd/m²
Sustained 25% Window
390 cd/m²
257 cd/m²
Sustained 50% Window
389 cd/m²
257 cd/m²
Sustained 100% Window
389 cd/m²
257 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.005
Minimum Brightness
36 cd/m²
50 cd/m²
HDR Brightness
0.0
6.0
EOTF
VESA DisplayHDR Certification
No Certification
No Certification
Real Scene
N/A
293 cd/m²
Peak 2% Window
N/A
283 cd/m²
Peak 10% Window
N/A
306 cd/m²
Peak 25% Window
N/A
306 cd/m²
Peak 50% Window
N/A
306 cd/m²
Peak 100% Window
N/A
306 cd/m²
Sustained 2% Window
N/A
283 cd/m²
Sustained 10% Window
N/A
306 cd/m²
Sustained 25% Window
N/A
306 cd/m²
Sustained 50% Window
N/A
306 cd/m²
Sustained 100% Window
N/A
306 cd/m²
Automatic Brightness Limiting (ABL)
N/A
0.005
Horizontal Viewing Angle
6.6
5.3
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
43°
30°
Color Washout From Right
47°
27°
Horizontal Hue Graph
Color Shift From Left
70°
40°
Color Shift From Right
70°
41°
Horizontal Lightness Graph
Brightness Loss From Left
46°
31°
Brightness Loss From Right
49°
28°
Black Level Raise From Left
17°
12°
Black Level Raise From Right
20°
11°
Gamma Shift From Left
9°
14°
Gamma Shift From Right
14°
12°
Vertical Viewing Angle
6.0
4.7
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
31°
24°
Color Washout From Above
32°
26°
Vertical Hue Graph
Color Shift From Below
69°
28°
Color Shift From Above
61°
24°
Vertical Lightness Graph
Brightness Loss From Below
33°
28°
Brightness Loss From Above
34°
29°
Black Level Raise From Below
16°
6°
Black Level Raise From Above
15°
6°
Gamma Shift From Below
13°
13°
Gamma Shift From Above
14°
12°
Gray Uniformity
8.3
8.3
50% Uniformity Picture
50% Std. Dev.
2.718%
2.082%
50% DSE
0.128%
0.137%
Black Uniformity
6.3
5.5
Native Black Uniformity Picture
Native Std. Dev.
1.810%
2.324%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Color Accuracy (Pre-Calibration)
6.7
8.1
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Standard
Custom
sRGB Gamut Area xy
114.8%
104.1%
White Balance dE (Avg.)
4.77
3.72
Color Temperature (Avg.)
6,770 K
7,103 K
Gamma (Avg.)
2.09
2.20
Color dE (Avg.)
3.30
2.76
Contrast Setting
75
75
RGB Settings
Gain (100-100-100), Offset (50-50-50)
50-50-50
Gamma Setting
No Gamma Setting
Mode 1
Brightness Setting
75
75
Measured Brightness
259 cd/m²
182 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
9.7
9.5
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom Color
Custom
sRGB Gamut Area xy
99.3%
96.9%
White Balance dE (Avg.)
0.58
0.41
Color Temperature (Avg.)
6,518 K
6,507 K
Gamma (Avg.)
2.19
2.20
Color dE (Avg.)
0.53
0.68
Contrast Setting
75
70
RGB Settings
Gain (95-100-98), Offset (50-50-48)
50-44-44
Gamma Setting
No Gamma Setting
Mode 1
Brightness Setting
21
22
Measured Brightness
98 cd/m²
101 cd/m²
SDR Color Gamut
9.3
8.9
sRGB Color Gamut Picture
sRGB Coverage xy
99.6%
96.8%
sRGB Picture Mode
Custom Color
Custom
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
79.7%
76.1%
Adobe RGB Picture Mode
Custom Color
Custom
HDR Color Gamut
0.0
6.2
Wide Color Gamut
N/A
No
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
N/A
77.3%
DCI-P3 Picture Mode
No HDR
HDR On
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
N/A
55.5%
Rec. 2020 Picture Mode
No HDR
HDR On
HDR Color Volume
0.0
6.1
DCI-P3 Color Volume ITP Picture
1,000 cd/m² DCI-P3 Coverage ICtCp
N/A
46.7%
DCI-P3 Picture Mode
No HDR
HDR On
Rec. 2020 Color Volume ITP Picture
10,000 cd/m² Rec. 2020 Coverage ICtCp
N/A
19.9%
Rec. 2020 Picture Mode
No HDR
HDR On
Text Clarity
7.5
7.5
ClearType On
ClearType Off
Pixel Type
VA
VA
Pixels
Subpixel Layout
RGB
RGB
Reflections
7.3
7.5
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
5.6%
5.3%
Indirect Reflections
3.1%
3.1%
Calculated Direct Reflections
2.5%
2.2%
Gradient
7.8
9.8
Gradient Picture
Color Depth
8 Bit
10 Bit
SDR Color Volume
9.6
sRGB Color Volume ITP Picture
sRGB In ICtCp
98.5%
sRGB Picture Mode
Custom Color
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
85.8%
Adobe RGB Picture Mode
Custom Color
Motion
Refresh Rate
8.5
7.5
Native Refresh Rate
165 Hz
165 Hz
Max Refresh Rate
165 Hz
165 Hz
Max Refresh Rate Over DP
165 Hz
165 Hz
Max Refresh Rate Over HDMI
144 Hz
144 Hz
Max Refresh Rate Over DP @ 10-bit
N/A
165 Hz
Max Refresh Rate Over HDMI @ 10-Bit
N/A
60 Hz
Variable Refresh Rate (VRR)
Variable Refresh Rate
Yes
Yes
FreeSync
Yes
Yes
G-SYNC
Compatible (Tested)
Compatible (Tested)
VRR Maximum
165 Hz
165 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
VRR Motion Performance
4.3
Pursuit Photo VRR
OD Mode CAD Comparison
Recommended VRR OD Setting
FreeSync Premium
Variable Overdrive Advertised
No
Avg. CAD
449
Best CAD
412
Worst CAD
506
Refresh Rate Compliance
5.3
Fast GTG Sequence
VRR Compliance
Compliance @ Max Hz
34%
Compliance @ 120 FPS
45%
Compliance @ 60 FPS
59%
Response Time @ 60Hz
6.3
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Super Fast (Freesync On)
Fastest
Rise / Fall Time
5.2 ms
14.6 ms
Total Response Time
19.7 ms
16.9 ms
Overshoot Error
3.7%
1 RGB
Worst 3 Rise / Fall Time
12.9 ms
30.9 ms
Worst 3 Total Response Time
38.6 ms
30.9 ms
Worst 3 Overshoot Error
13.4%
9 RGB
CAD @ Max Refresh Rate
5.7
Pursuit Photo At Max Refresh
CAD Heatmap At Max Refresh
OD Transition Max Refresh Rate
OD faster
0 to 31
Recommended Overdrive Setting
Fastest
Avg. CAD
256
Best 10% CAD
83
Worst 10% CAD
653
Response Time @ Max Refresh Rate
First Response Time
5.8 ms
8.8 ms
Total Response Time
13.2 ms
11.9 ms
Recommended Overdrive Setting
Super Fast (Freesync On)
Fastest
Motion Blur Picture
RGB Overshoot
0.7%
7 RGB
Worst 10% RGB Overshoot
5.8%
43 RGB
Worst 10% First Response Time
17.6 ms
26.4 ms
Worst 10% Total Response Time
31.5 ms
26.4 ms
Heatmap First Response
Heatmap Total Response
Heatmap RGB Overshoot
Response Time Table
CAD @ 120Hz
5.5
Pursuit Photo 120Hz
CAD Heatmap 120Hz
OD Transition 120Hz
OD faster
0 to 31
Recommended Overdrive Setting
Fastest
Avg. CAD
286
Best 10% CAD
86
Worst 10% CAD
633
Response Time @ 120Hz
Worst 10% First Response Time
17.3 ms
31.8 ms
RGB Overshoot
1.6%
2 RGB
Total Response Time
13.3 ms
14.2 ms
First Response Time
5.6 ms
12.5 ms
Recommended Overdrive Setting
Super Fast (Freesync On)
Fastest
Worst 10% Total Response Time
34.3 ms
31.8 ms
Worst 10% RGB Overshoot
10.1%
15 RGB
120Hz First Response Heatmap
120Hz Total Response Heatmap
120Hz Heatmap RGB Overshoot
Motion Blur Picture
Response Time Table
CAD @ 60Hz
5.4
Pursuit Photo 60Hz
CAD Heatmap 60Hz
OD Transition 60Hz
OD faster
0 to 31
Recommended Overdrive Setting
Fastest
Avg. CAD
314
Best 10% CAD
92
Worst 10% CAD
612
Response Time @ 60Hz
Recommended Overdrive Setting
Super Fast (Freesync On)
Fastest
First Response Time
5.2 ms
14.6 ms
Total Response Time
19.7 ms
16.9 ms
RGB Overshoot
3.7%
1 RGB
Worst 10% Total Response Time
38.6 ms
30.9 ms
Worst 10% First Response Time
12.9 ms
30.9 ms
Worst 10% RGB Overshoot
13.4%
9 RGB
60Hz First Response Heatmap
60Hz Total Response Heatmap
60Hz RGB Overshoot Heatmap
Backlight Strobing (BFI)
Backlight Strobing Picture
Backlight Strobing Frequency Picture
Backlight Strobing (BFI)
Yes
Yes
Maximum Frequency
165 Hz
165 Hz
Minimum Frequency
120 Hz
165 Hz
Longest Pulse Width Brightness
221 cd/m²
114 cd/m²
Shortest Pulse Width Brightness
221 cd/m²
114 cd/m²
Pulse Width Control
No
No
Pulse Phase Control
No
No
Pulse Amplitude Control
Yes
No
VRR At The Same Time
No
No
VRR Flicker
2.4
VRR Flicker Video
VRR Flicker Graph
Dark Gray Flicker
5.9 RGB
Middle Gray Flicker
5.1 RGB
Light Gray Flicker
4.3 RGB
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
>1000 Hz
Inputs
Input Lag
8.8
8.7
Native Resolution @ Max Hz
4.2 ms
4.9 ms
Native Resolution @ 120Hz
5.2 ms
6.1 ms
Native Resolution @ 60Hz
9.2 ms
10.4 ms
Backlight Strobing (BFI)
8.2 ms
7.1 ms
Resolution
8.0
7.5
Native Resolution
2560 x 1440
2560 x 1440
Aspect Ratio
16:9
16:9
Megapixels
3.7 MP
3.7 MP
Pixel Density
109 PPI
109 PPI
Measured Screen Diagonal
27.0"
Screen Area
310 in²
PS5 Compatibility
3.0
4.9
PS5 Compatibility Photo
PS5 Compatibility Table
4k @ 120Hz
No
No
4k @ 60Hz
No
Yes
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
HDR
No
VRR
No
Xbox Series X|S Compatibility
5.8
6.6
XSX Compatibility Photo
XSX Compatibility Table
4k @ 120Hz
No
No
4k @ 60Hz
No
Yes
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
HDR
No
VRR
Yes
Inputs Photos
Inputs 1
Inputs 2
Video And Audio Ports
DisplayPort
1 (DP 1.2)
1 (DP 1.4)
DisplayPort Transmission Bandwidth
No DisplayPort 2.1
Mini DisplayPort
No
No
HDMI
2 (HDMI 2.0)
1 (HDMI 2.0)
HDMI 2.1 Bandwidth
No HDMI 2.1
No HDMI 2.1
DVI
No
No
VGA
No
No
Daisy Chaining
No
No
3.5mm Audio Out
1
1
HDR10
No
Yes
3.5mm Audio In
No
No
3.5mm Microphone In
No
No
USB
USB-A Ports
0
1 (Service Port Only)
USB-A Rated Speed
No USB-A Ports
480Mbps (USB 2.0)
USB-B Upstream Port
No
No
USB-C Ports
0
0
USB-C Upstream
No USB-C Ports
No USB-C Ports
USB-C Rated Speed
No USB-C Ports
No USB-C Ports
USB-C Power Delivery
No USB-C Ports
No USB-C Ports
USB-C DisplayPort Alt Mode
No USB-C Ports
No USB-C Ports
Thunderbolt
No
No
macOS Compatibility
macOS Screenshot
Features
Additional Features
HDR10
No
Yes
Speakers
No
No
RGB Illumination
Fixed (On/Off)
No
Multiple Input Display
No
No
KVM Switch
No
No
On-Screen Display (OSD)
OSD Picture
Check Price
27"
S2722DGM
SEE PRICE
Amazon.com
27"
LS27AG550ENXZA
SEE PRICE
Amazon.com
27"
S2722DGM
SEE PRICE
Walmart.com
27"
LS27AG550ENXZA
SEE PRICE
Walmart.com
27"
S2722DGM
SEARCH
B&H
27"
LS27AG550ENXZA
SEE PRICE
BestBuy.com
27"
S2722DGM
SEARCH
BestBuy.com
27"
LS27AG550ENXZA
SEARCH
B&H
27"
LS27AG550ENXZA
SEARCH
Samsung.com
Dell S2722DGM
Samsung Odyssey G55A S27AG55
Comments
Dell S2722DGM vs Samsung Odyssey G55A S27AG55: Main Discussion
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