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Comparison between ViewSonic VP2756-2K vs Dell U2421HE

General Info
Model Number ViewSonic VP2756-2K Dell U2421HE
Price
Type Monitor Monitor
Year 2021 2020
Brand ViewSonic Dell
Model Number VP2756-2K U2421HE
Display
Screen Size Class 27" (inches) 24" (inches)
Diagonal Size 26.96 in
68.5 cm
684.66 mm
2.25 ft
23.81 in
60.5 cm
604.7 mm
1.98 ft
Screen Width 23.49 in
59.7 cm
596.736 mm
1.96 ft
20.75 in
52.7 cm
527.04 mm
1.73 ft
Screen Height 13.22 in
33.6 cm
335.664 mm
1.1 ft
11.67 in
29.6 cm
296.46 mm
0.97 ft
Display Type IPS IPS
Display Bit Depth 8 bits 8 bits
Frame Rate Control No
Max Number of Colors 16777216 16777216
Bits 24 24
Screen Aspect Ratio 16:9 16:9
Screen Resolution 2560 x 1440 1920 x 1080
Screen Pixel Pitch 0.233 mm 0.275 mm
Screen Pixel Density 109 ppi 92 ppi
Screen-to-Body Ratio 90.02 % 92.49 %
Backlight Source W-LED W-LED
DCI P3 81% 89%
sRGB 100 % 99 %
Adobe RGB 1998 78 %
NTSC 1953 78 %
Screen Brightness 350 cd/m² 250 cd/m²
Static Screen Contrast 1000 : 1 1000 : 1
Dynamic Screen Contrast 20000000 : 1
Screen Horizontal Viewing Angle 178 ° 178 °
Screen Vertical Viewing Angle 178 ° 178 °
Display Minimum Response Time 5 ms 5 ms
Display Average Response Time 8 ms
Display Coating Anti-glare/Matte (3H) Anti-glare/Matte (3H)
3D No No
Size, weight, color
Case Depth 2.09 in
5.3 cm
53 mm
0.17 ft
1.54 in
3.9 cm
39 mm
0.13 ft
Case Weight 4.4 kg
10 lbs
3.37 kg
7 lbs
Case Width with Stand 24.13 in
61.3 cm
613 mm
2.01 ft
21.2 in
53.9 cm
538.5 mm
1.77 ft
Case Height with Stand 16.15 in
41 cm
410.31 mm
1.35 ft
13.72 in
34.8 cm
348.4 mm
1.14 ft
Case Depth with Stand 8.46 in
21.5 cm
215 mm
0.71 ft
6.5 in
16.5 cm
165 mm
0.54 ft
Case Weight with Stand 6.9 kg
15 lbs
5.32 kg
12 lbs
Case Color Black Black
Hardware
Built-in Camera No
Connectivity 1 x USB 3.2 (Type-C; Gen 1; upstream; 60W; DP Alt Mode)
1 x HDMI 1.4
1 x 3.5 mm Audio Out
1 x DisplayPort 1.2 (a)
2 x USB 3.2 (Type-A; Gen 1; downstream)
1 x USB 3.2 (Type-B; Gen 1; upstream)
1 x USB 3.1 (Type-C; upstream; DP; 65W)
1 x Ethernet RJ45
1 x DisplayPort 1.4
1 x 3.5 mm Audio Out
1 x DisplayPort 1.4 (Output MST)
1 x HDMI 1.4
2 x USB 3.0 (downstream)
2 x USB 3.0 (downstream; BC 1.2)
Audio
Audio Speakers 2 x 2W
Features
Cool Features ColorPro Verified
Low Blue Light technology
Pre-Factory Calibration
Split Screen
Pantone Validated
30+ Working Modes
3-side borderlesss design
Flicker-free technology
Low Blue Light
Extra Features Anti-theft stand lock slot - Kensington Security lock slot
Ergonomics
Case Width 24.13 in
61.3 cm
613 mm
2.01 ft
21.2 in
53.9 cm
538.5 mm
1.77 ft
Case Height 14.29 in
36.3 cm
363 mm
1.19 ft
12.35 in
31.4 cm
313.7 mm
1.03 ft
Vesa Mount Support Yes Yes
VESA Interface Standard Size 100 x 100 100 x 100
Removable VESA Stand Yes Yes
Height Adjustment Yes Yes
Height Adjustment Range 130 mm
13 cm
5.1181 in
0.4265 ft
130 mm
13 cm
5.1181 in
0.4265 ft
Landscape or Portrait Pivot Support Yes Yes
Left Pivot 90 ° 90 °
Right Pivot 90 ° 90 °
Left or Right Swivel Support Yes Yes
Left Swivel 120 ° 40 °
Right Swivel 120 ° 40 °
Forward and Backward Tilt Support Yes Yes
Forward Tilt 5 ° 5 °
Backward Tilt 21 ° 21 °
Frequency and Interpolation
Vertical Digital Frequency 24 Hz - 75 Hz 56 Hz - 76 Hz
Horizontal Digital Frequency 15 kHz - 130 kHz 30 kHz - 83 kHz
Screen Interpolation Measurement Unit NULL NULL
Accessories
Extras HDMI cable
USB Type-A to Type-B cable
USB Type-C cable
DisplayPort cable
USB Type-C to Type-C cable
Certificates and Standards
Licenses BSMI
CB
CE
CE EMC
CEC
cTUVus
EAC
Energy Star 8.0
EPEAT Silver
ErP
FCC-B
ICES003
macOS tested
Mexico Energy
NOM
REACH
RoHS
TÜV Rheinland Low Blue Light Certified
UKCA
UkrSEPRO
WEEE
Windows 10 Certified
ENERGY STAR
EPEAT
TCO Certified
RoHS
NFPA 99
Usage and Storage Requirements
Safe Operating Temperature Level 0 °C - 40 °C
32 °F - 104 °F
0 °C - 40 °C
32 °F - 104 °F
Safe Operating Humidity Level 20 % - 90 % 10 % - 80 %
Internal Storage Temperature 20 °C - 60 °C
68 °F - 140 °F
-20 °C - 60 °C
-4 °F - 140 °F
Internal Storage Humidity 5 % - 90 % 5 % - 90 %
Max Operating Altitude 5000
Max Storage Altitude 12192
ViewSonic VP2756-2K Dell U2421HE