Comparison between:
- 37.5" ViewSonic VP3881
- 34.14" Dell U3421WE
- 31.5" Dell UltraSharp U3219Q

Brand, series, model

Information about the brand, series, model and model aliases.

ViewSonic VP3881Dell U3421WEDell UltraSharp U3219Q
Series-UltraSharpUltraSharp
ViewSonic VP3881Dell U3421WEDell UltraSharp U3219Q
Model alias-UltraSharp U3421WE-
Model year201720202018

Display

Information about the main characteristics of the display - panel, backlight, resolution, refresh rate, etc.

Size class37.5 in34.14 in31.5 in
Diagonal952.5 mm
95.25 cm
37.5 in
3.125 ft		867.2 mm
86.72 cm
34.1417 in
2.8451 ft		801 mm
80.1 cm
31.5354 in
2.628 ft
Width879.667 mm
87.9667 cm
34.6326 in
2.886 ft		799.8 mm
79.98 cm
31.4882 in
2.624 ft		697.31 mm
69.731 cm
27.4531 in
2.2878 ft
Height366.528 mm
36.6528 cm
14.4302 in
1.2025 ft		334.8 mm
33.48 cm
13.1811 in
1.0984 ft		392.23 mm
39.223 cm
15.4421 in
1.2868 ft
Radius of curvature2300 mm
230 cm
90.5512 in
7.5459 ft		1900 mm
190 cm
74.8031 in
6.2336 ft		-
Panel manufacturerLG DisplayLG DisplayLG Display
Panel modelLM375QW1-SSA1-LM315WR1-????
Panel typeAH-IPSAH-IPSIPS
Panel bit depth10 bits (8 bits + FRC)10 bits10 bits (8 bits + FRC)
FRCYes-Yes
LUT3D LUT
14 bits		--
Colors1073741824 colors
30 bits		1073741824 colors
30 bits		1073741824 colors
30 bits
Aspect ratio2.4:12.389:11.778:1
16:9
Resolution3840 x 1600 pixels3440 x 1440 pixels3840 x 2160 pixels
Ultra HD (UHD) / 4K / 2160p
Pixel pitch0.229 mm
0.0229 cm
0.009 in
0.0008 ft		0.233 mm
0.0233 cm
0.0092 in
0.0008 ft		0.182 mm
0.0182 cm
0.0071 in
0.0006 ft
Pixel density111 ppi
43 ppcm		109 ppi
43 ppcm		140 ppi
55 ppcm
Display area90.41 %-92.61 %
BacklightW-LEDW-LEDW-LED
sRGB99.52 %99 %99 %
Adobe RGB (1998)75.67 %-80 %
NTSC (1953)76.12 %--
DCI P3-95 %95 %
Brightness300 cd/m²300 cd/m²400 cd/m²
Static contrast1000 : 11000 : 11300 : 1
Dynamic contrast20000000 : 1--
HDRHDR10-HDR10
DisplayHDR 400
Horizontal viewing angle178 °178 °178 °
Vertical viewing angle178 °178 °178 °
Minimum response time5 ms
0.0050 s		5 ms
0.0050 s		5 ms
0.0050 s
Average response time14 ms
0.0140 s		8 ms
0.0080 s		8 ms
0.0080 s
Maximum response time23 ms
0.0230 s		--
Input lag22 ms
0.0220 s		-9 ms
0.0090 s
CoatingAnti-glare/Matte (3H)Anti-glare/Matte (3H)Anti-glare/Matte (3H)

3D

3D displays use various technologies to achieve a 3D effect. Each of these technologies has its own advantages and drawbacks.

3DNoNoNo

Frequencies

Information about the horizontal and vertical refresh rates/frequencies.

Horizontal frequency (digital)15 kHz - 135 kHz--
Vertical frequency (digital)24 Hz - 75 Hz60 Hz60 Hz

Power supply and consumption

Information about the power supply and consumption, energy efficiency class, etc.

110V100 V - 120 V100 V - 120 V100 V - 120 V
220V220 V - 240 V220 V - 240 V220 V - 240 V
Alternating current frequency50 Hz - 60 Hz50 Hz - 60 Hz50 Hz - 60 Hz
Electric current (A)-3 A1.5 A
Power consumption (off)0.3 W0.5 W0.3 W
Power consumption (sleep)0.5 W0.5 W0.5 W
Power consumption (eco)132 W--
Power consumption (average)155 W36 W46 W
Power consumption (maximum)170 W210 W230 W

Dimensions, weight and color

Information about the dimensions and the weight of the specific model with and without stand as well as the colors, in which it is offered to the market.

Width896 mm
89.6 cm
35.2756 in
2.9396 ft		813.3 mm
81.33 cm
32.0197 in
2.6683 ft		712.5 mm
71.25 cm
28.0512 in
2.3376 ft
Height398 mm
39.8 cm
15.6693 in
1.3058 ft		-414.5 mm
41.45 cm
16.3189 in
1.3599 ft
Depth103.14 mm
10.314 cm
4.0606 in
0.3384 ft		-44.5 mm
4.45 cm
1.752 in
0.146 ft
Weight7.97 kg
17.57 lbs		7.52 kg
16.58 lbs		5.8 kg
12.79 lbs
Width with stand896 mm
89.6 cm
35.2756 in
2.9396 ft		813.3 mm
81.33 cm
32.0197 in
2.6683 ft		610.9 mm
61.09 cm
24.0512 in
2.0043 ft
Height with stand629.24 mm
62.924 cm
24.7732 in
2.0644 ft		392.8 mm
39.28 cm
15.4646 in
1.2887 ft		452.7 mm
45.27 cm
17.8228 in
1.4852 ft
Depth with stand298.8 mm
29.88 cm
11.7638 in
0.9803 ft		237.4 mm
23.74 cm
9.3465 in
0.7789 ft		157.6 mm
15.76 cm
6.2047 in
0.5171 ft
Weight with stand12.69 kg
27.98 lbs		11.87 kg
26.17 lbs		9.6 kg
21.16 lbs
Box width1046 mm
104.6 cm
41.1811 in
3.4318 ft		--
Box height490 mm
49 cm
19.2913 in
1.6076 ft		--
Box depth375 mm
37.5 cm
14.7638 in
1.2303 ft		--
Box weight19.88 kg
43.83 lbs		16.62 kg
36.64 lbs		-
ColorsBlackPlatinum SilverBlack

Ergonomics

Information about the ergonomic functions - height adjustment, swivel angles, tilt angles, etc.

VESA mountYesYesYes
VESA interface100 x 100 mm100 x 100 mm100 x 100 mm
Removable standYesYesYes
Height adjustmentYesYesYes
Height adjustment range130 mm
13 cm
5.1181 in
0.4265 ft		150 mm
15 cm
5.9055 in
0.4921 ft		150 mm
15 cm
5.9055 in
0.4921 ft
Landscape/portrait pivotNoNoYes
Left pivot--90 °
Right pivot--90 °
Left/right swivelYesYesYes
Left swivel60 °30 °30 °
Right swivel60 °30 °30 °
Forward/backward tiltYesYesYes
Forward tilt1 °5 °5 °
Backward tilt21 °21 °21 °

Audio

Information about the audio system - number and power of the built-in speakers, supported audio technologies.

Speakers2 x 5 W2 x 5 W-
D-class amplifier--

Camera

Many contemporary desktop monitors and smart TV sets have built-in cameras.

CameraNoNoNo

Connectivity

Available connectivity ports, slots and interfaces.

Connectivity1 x USB 3.0 (upstream)
1 x USB 3.0 (Type-C)
3 x USB 3.0 (downstream)
2 x HDMI 2.0
1 x DisplayPort 1.4
1 x 3.5 mm Audio In
1 x 3.5 mm Audio Out		1 x USB 3.1 (Type-C; upstream; 90W; DP Alt Mode)
1 x USB 3.1 (Type-C; downstream; 15W)
4 x USB 3.2 (Type-A; Gen 1; downstream; 5 Gbps)
1 x USB 3.2 (Type-B; Gen 1; upstream)
1 x Ethernet RJ45
2 x HDMI 2.0
1 x DisplayPort 1.4
1 x 3.5 mm Audio Out		4 x USB 3.0 (downstream)
1 x USB 3.0 (upstream)
1 x USB 3.1 (Type-C - 90 W)
1 x HDMI 2.0
1 x DisplayPort 1.4
1 x 3.5 mm Audio Out
High-bandwidth Digital Content Protection (HDCP) 2.2High-bandwidth Digital Content Protection (HDCP)High-bandwidth Digital Content Protection (HDCP) 2.2

Features

Some additional functional features of the model.

FeaturesBlue Light Filter
Flicker-free technology
Picture-by-Picture
Picture-in-Picture
SuperClear IPS Panel Technology		ComfortView
Flicker-free technology
KVM Switch
Low Blue Light
Picture-by-Picture
Picture-in-Picture		DDC/CI
Flicker-free technology
Picture-by-Picture
Picture-in-Picture

Certificates, standards and licenses

Licenses from regulatory agencies, standards, certificates.

Certificates, standards and licensesCB
CCC
CE
CEL Level 1
CU
ErP
eStandby
FCC Class B
REACH SVHC List & DoC
RoHS
VCCI
WEEE		Energy Star
EPEAT Gold
RoHS
TCO Certified Displays
TUV Rheinland Flicker Free Certified
TUV Rheinland Low Blue Light Certified		CECP
ENERGY STAR
Epeat Gold
RoHS compliant
TCO Certified Displays

Operating and storage conditions

There are certain requirements for the environmental conditions, in which the display should be used and stored in order to function properly.

Operating temperature0 °C - 40 °C
32 °F - 104 °F		0 °C - 40 °C
32 °F - 104 °F		0 °C - 40 °C
32 °F - 104 °F
Operating humidity10 % - 85 %10 % - 80 %10 % - 80 %
Operating altitude5000 m
16404.2 ft		5000 m
16404.2 ft		5000 m
16404.2 ft
Storage temperature-25 °C - 55 °C
-13 °F - 131 °F		-20 °C - 60 °C
-4 °F - 140 °F		-20 °C - 60 °C
-4 °F - 140 °F
Storage humidity5 % - 93 %5 % - 90 %5 % - 90 %
Storage altitude12192 m
40000 ft		12192 m
40000 ft		12192 m
40000 ft

Accessories

Often the packaging of desktop monitors and smart TV sets includes accessories for them.

AccessoriesAudio cable
DisplayPort cable
HDMI cable
USB 3.0 upstream cable
USB Type-C cable		DisplayPort cable
HDMI cable
USB Type-A to Type-B cable
USB Type-C to Type-C cable		DisplayPort cable
USB Type-C cable
USB 3.0 upstream cable

Additional features

Information about other features.

Additional featuresAnti-theft stand lock slot - KensingtonSecurity lock slotSecurity lock slot
 ViewSonic VP3881Dell U3421WEDell UltraSharp U3219Q