Products
Samsung T55
Dell UltraSharp U2721DE
Tested using Methodology v1.1
Updated Dec 16, 2022 04:26 PM
SEE PRICE
Amazon.com
Tested using Methodology v1.1
Updated Dec 14, 2023 04:44 PM
SEE PRICE
Amazon.com
Size32"
Pixel Type
VA
Variable Refresh Rate
FreeSync
Native Resolution1920 x 1080
Max Refresh Rate
75 Hz
Size27"
Pixel Type
IPS
Variable Refresh Rate
No VRR
Native Resolution2560 x 1440
Max Refresh Rate
60 Hz
Our Verdict
Samsung T55
Dell UltraSharp U2721DE
The Dell UltraSharp U2721DE is better than the Samsung T55. The Dell has a native 1440p resolution, excellent ergonomics, wide viewing angles, decent out-of-the-box color accuracy, and it also has a quicker response time. The Samsung has more gaming features like a slightly lower input lag and FreeSync VRR support. It also has a VA panel that displays deep blacks and its SDR color gamut is wider too.
Variants
- LC24T55 (24")
- LC27T55 (27")
- LC32T55 (32")
- UltraSharp U2721DE (27")
Check Price
27"
LC27T55
SEARCH
Amazon.com
27"
UltraSharp U2721DE
SEE PRICE
Amazon.com
24"
LC24T55
SEARCH
Amazon.com
27"
UltraSharp U2721DE
SEE PRICE
BestBuy.com
32"
LC32T55
SEE PRICE
Amazon.com
27"
UltraSharp U2721DE
SEE PRICE
Walmart.com
27"
UltraSharp U2721DE
SEARCH
B&H
Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
6.7
7.4
Ergonomics
1.5
8.5
Resolution And Size
7.1
8.3
Vertical Viewing Angle
5.7
7.6
Horizontal Viewing Angle
6.0
7.4
Full Comparison
Design
Style
Design Picture
Size
32"
27"
Curved
Yes
No
Curve Radius
1000R
Not Curved
Weight (without stand)
10.6 lbs (4.8 kg)
8.9 lbs (4.0 kg)
Weight (with stand)
13.9 lbs (6.3 kg)
12.6 lbs (5.7 kg)
Stand
Stand Picture
Width
9.4" (24.0 cm)
9.1" (23.0 cm)
Depth
10.7" (27.3 cm)
7.1" (18.0 cm)
Ergonomics
1.5
8.5
Ergonomics Picture
Height Adjustment
0.0" (0.0 cm)
5.1" (13.0 cm)
Switch Portrait/Landscape
No
Yes, Both Ways
Swivel Range
No swivel
-40° to 40°
Tilt Range
-20° to 5°
-20° to 5°
Back
Back Picture
Wall Mount
No Mount
VESA 100x100
Borders
Borders Picture
Borders
0.4" (1.1 cm)
0.2" (0.6 cm)
Thickness
Thickness Picture
Thickness (with stand)
9.5" (24.1 cm)
5.0" (12.8 cm)
Thickness (without stand)
5.1" (13.0 cm)
1.5" (3.8 cm)
Build Quality
7.0
7.5
Build Quality Picture
Picture Quality
Contrast
8.0
6.0
Checkerboard Picture
Native Contrast
3,174 : 1
1,014 : 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 Peak Brightness
7.6
7.7
SDR Real Scene
301 cd/m²
314 cd/m²
SDR Peak 2% Window
317 cd/m²
347 cd/m²
SDR Peak 10% Window
317 cd/m²
348 cd/m²
SDR Peak 25% Window
318 cd/m²
348 cd/m²
SDR Peak 50% Window
317 cd/m²
349 cd/m²
SDR Peak 100% Window
317 cd/m²
349 cd/m²
SDR Sustained 2% Window
317 cd/m²
347 cd/m²
SDR Sustained 10% Window
317 cd/m²
348 cd/m²
SDR Sustained 25% Window
317 cd/m²
348 cd/m²
SDR Sustained 50% Window
317 cd/m²
349 cd/m²
SDR Sustained 100% Window
317 cd/m²
349 cd/m²
SDR ABL
0.000
0.000
HDR Peak Brightness
0.0
0.0
HDR Real Scene
N/A
N/A
HDR Peak 2% Window
N/A
N/A
HDR Peak 10% Window
N/A
N/A
HDR Peak 25% Window
N/A
N/A
HDR Peak 50% Window
N/A
N/A
HDR Peak 100% Window
N/A
N/A
HDR Sustained 2% Window
N/A
N/A
HDR Sustained 10% Window
N/A
N/A
HDR Sustained 25% Window
N/A
N/A
HDR Sustained 50% Window
N/A
N/A
HDR Sustained 100% Window
N/A
N/A
HDR ABL
N/A
N/A
Horizontal Viewing Angle
6.0
7.4
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
28°
39°
Color Washout From Right
30°
39°
Horizontal Hue Graph
Color Shift From Left
60°
48°
Color Shift From Right
62°
47°
Horizontal Lightness Graph
Brightness Loss From Left
29°
45°
Brightness Loss From Right
31°
46°
Black Level Raise From Left
14°
70°
Black Level Raise From Right
15°
41°
Gamma Shift From Left
21°
39°
Gamma Shift From Right
20°
38°
Vertical Viewing Angle
5.7
7.6
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
27°
32°
Color Washout From Above
29°
34°
Vertical Hue Graph
Color Shift From Below
55°
41°
Color Shift From Above
56°
43°
Vertical Lightness Graph
Brightness Loss From Below
30°
34°
Brightness Loss From Above
31°
36°
Black Level Raise From Below
11°
70°
Black Level Raise From Above
11°
70°
Gamma Shift From Below
16°
44°
Gamma Shift From Above
18°
63°
Gray Uniformity
8.8
8.7
50% Uniformity Picture
50% Std. Dev.
2.596%
2.436%
50% DSE
0.107%
0.115%
5% Uniformity Picture
5% Std. Dev.
0.725%
0.279%
5% DSE
0.065%
0.041%
Black Uniformity
5.6
7.1
Native Black Uniformity Picture
Native Std. Dev.
2.274%
1.219%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Pre Calibration
4.7
7.1
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Standard
Standard
Luminance
220 cd/m²
103 cd/m²
Luminance Settings
55
22
Contrast Setting
75
78
RGB Controls
50-50-50
100-100-100
Gamma Setting
1
No Gamma Setting
Color Temperature
5,876 K
5,949 K
White Balance dE
6.05
3.53
Color dE
4.61
3.19
Gamma
2.16
2.24
Post Calibration
9.6
9.7
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom
Custom Color
Luminance
102 cd/m²
101 cd/m²
Luminance Settings
24
23
Contrast Setting
75
78
RGB Controls
41-40-52
94-92-100
Gamma Setting
1
No Gamma Setting
Color Temperature
6,543 K
6,489 K
White Balance dE
0.44
0.40
Color dE
0.65
0.52
Gamma
2.19
2.17
SDR Color Gamut
9.1
8.6
Color Gamut sRGB Picture
sRGB xy
98.9%
96.8%
Color Gamut ARGB Picture
Adobe RGB xy
82.1%
75.3%
sRGB Picture Mode
Custom
Custom Color
Adobe RGB Picture Mode
Custom
Custom Color
SDR Color Volume
9.4
8.9
sRGB Color Volume ITP Picture
sRGB In ICtCp
99.0%
96.6%
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
89.2%
81.4%
sRGB Picture Mode
Custom
Custom Color
Adobe RGB Picture Mode
Custom
Custom Color
HDR Color Gamut
0.0
0.0
Wide Color Gamut
N/A
N/A
Color Gamut DCI-P3 Picture
DCI P3 xy
N/A
N/A
Color Gamut Rec.2020 Picture
Rec. 2020 xy
N/A
N/A
DCI P3 Picture Mode
No HDR
No HDR
Rec. 2020 Picture Mode
No HDR
No HDR
HDR Color Volume
0.0
0.0
P3 Color Volume ITP Picture
DCI-P3 In ICtCp
N/A
N/A
2020 Color Volume ITP Picture
Rec. 2020 In ICtCp
N/A
N/A
DCI P3 Picture Mode
No HDR
No HDR
Rec. 2020 Picture Mode
No HDR
No HDR
Image Retention
10
10
Image Retention Picture
IR After 0 Min Recovery
0.00%
0.00%
IR After 2 Min Recovery
0.00%
0.00%
IR After 4 Min Recovery
0.00%
0.00%
IR After 6 Min Recovery
0.00%
0.00%
IR After 8 Min Recovery
0.00%
0.00%
IR After 10 Min Recovery
0.00%
0.00%
Gradient
8.0
7.8
Gradient Picture
Color Depth
8 Bit
8 Bit
Color Bleed
10
10
Color Bleed Horizontal
Pixel Row Error
0.000%
0.000%
Color Bleed Vertical
Pixel Column Error
0.001%
0.002%
Reflections
7.5
7.6
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
5.2%
6.5%
Indirect Reflections
2.7%
5.7%
Calculated Direct Reflections
2.4%
0.8%
Text Clarity
6.0
7.0
ClearType On
Pixel Type
VA
IPS
ClearType Off
Pixels
Sub-Pixel Layout
RGB
RGB
Motion
Response Time @ Max Refresh Rate
6.8
7.1
Motion Blur Picture
Response Time Table
Best Overdrive Setting
Faster
Normal
Rise / Fall Time
5.6 ms
7.7 ms
Total Response Time
19.9 ms
19.2 ms
Overshoot Error
10.4%
4.5%
Dark Rise / Fall Time
5.2 ms
8.4 ms
Dark Total Response Time
24.0 ms
20.7 ms
Dark Overshoot Error
17.5%
6.0%
Response Time @ 60Hz
5.9
7.1
Motion Blur Picture
Response Time Table
Best Overdrive Setting
Faster
Normal
Rise / Fall Time
5.5 ms
7.7 ms
Total Response Time
24.4 ms
19.2 ms
Overshoot Error
13.6%
4.5%
Dark Rise / Fall Time
5.1 ms
8.4 ms
Dark Total Response Time
28.8 ms
20.7 ms
Dark Overshoot Error
24.8%
6.0%
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
0 Hz
Black Frame Insertion (BFI)
0.0
0.0
Black Frame Insertion (BFI)
No BFI
No BFI
BFI Picture
BFI Frequency Picture
BFI Maximum Frequency
N/A
N/A
BFI Minimum Frequency
N/A
N/A
Refresh Rate
7.7
5.9
Variable Refresh Rate
FreeSync
No VRR
Native
75 Hz
60 Hz
Max Refresh Rate
75 Hz
60 Hz
Variable Refresh Rate
Yes
No
FreeSync
Yes
No
G-SYNC
Compatible (Tested)
No
VRR Maximum
75 Hz
N/A
VRR Minimum
48 Hz
No VRR
VRR Supported Connectors
DisplayPort, HDMI
No VRR
Inputs
Input Lag
9.1
9.0
Native Resolution
8.0 ms
8.7 ms
Native Resolution @ 60Hz
9.7 ms
8.7 ms
Variable Refresh Rate
8.0 ms
N/A
Variable Refresh Rate @ 60Hz
9.7 ms
N/A
10 Bit HDR
N/A
N/A
Black Frame Insertion (BFI)
N/A
N/A
Resolution And Size
7.1
8.3
Native Resolution
1920 x 1080
2560 x 1440
Aspect Ratio
16:9
16:9
Megapixels
2.1 MP
3.7 MP
Pixel Density
69 PPI
109 PPI
Screen Diagonal
32.0"
27.0"
Screen Area
438 in²
310 in²
Inputs
Inputs 1
Inputs 2
Total Inputs
DisplayPort
1 (DP 1.2)
1 (DP 1.4)
Mini DisplayPort
No
No
HDMI
1 (HDMI 1.4)
1 (HDMI 1.4)
DVI
No
No
VGA
1
No
DisplayPort Out
No
1 (DP 1.4)
USB
No
4 (USB 3.0)
USB C
No
1 (USB, USB PD, DP Alt Mode)
Analog Audio Out 3.5mm
1
1
Microphone In 3.5mm
1
No
Digital Optical Audio Out
No
No
Analog Audio Out RCA
No
No
Power Supply
External Brick
Internal
Features
Additional Features
RGB Illumination
No
No
Speakers
Yes
No
HDR10
No
No
Multiple Input Display
No
No
On-Screen Display (OSD)
OSD Picture
Controls
Controls Picture
In The Box
In The Box Picture
Check Price
27"
LC27T55
SEARCH
Amazon.com
27"
UltraSharp U2721DE
SEE PRICE
Amazon.com
24"
LC24T55
SEARCH
Amazon.com
27"
UltraSharp U2721DE
SEE PRICE
BestBuy.com
32"
LC32T55
SEE PRICE
Amazon.com
27"
UltraSharp U2721DE
SEE PRICE
Walmart.com
27"
UltraSharp U2721DE
SEARCH
B&H
Samsung T55
Dell UltraSharp U2721DE
Comments
Samsung T55 vs Dell UltraSharp U2721DE: Main Discussion
What do you think of these products? Let us know below.
Looking for a personalized buying advice from the RTINGS.com experts? Insiders have direct access to buying advice on our insider forum.