Comparison between:
- 27" Dell S2721H
- 27" Dell S2721QS
- 27" Dell S2721HGF
- 27" Dell U2722DE

Brand, series, model

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

Dell S2721HDell S2721QSDell S2721HGFDell U2722DE
Series---UltraSharp
Dell S2721HDell S2721QSDell S2721HGFDell U2722DE
Model year2020202020202021

Display

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

Size class27 in27 in27 in27 in
Diagonal685.9 mm
68.59 cm
27.0039 in
2.2503 ft
684.7 mm
68.47 cm
26.9567 in
2.2464 ft
684.7 mm
68.47 cm
26.9567 in
2.2464 ft
684.66 mm
68.466 cm
26.9551 in
2.2463 ft
Width597.888 mm
59.7888 cm
23.5389 in
1.9616 ft
596.736 mm
59.6736 cm
23.4935 in
1.9578 ft
596.736 mm
59.6736 cm
23.4935 in
1.9578 ft
596.736 mm
59.6736 cm
23.4935 in
1.9578 ft
Height336.312 mm
33.6312 cm
13.2406 in
1.1034 ft
335.664 mm
33.5664 cm
13.2151 in
1.1013 ft
335.664 mm
33.5664 cm
13.2151 in
1.1013 ft
335.664 mm
33.5664 cm
13.2151 in
1.1013 ft
Radius of curvature--1500 mm
150 cm
59.0551 in
4.9213 ft
-
Panel typeIPSIPSVAIPS
Panel bit depth8 bits10 bits8 bits10 bits
Colors16777216 colors
24 bits
1073741824 colors
30 bits
16777216 colors
24 bits
1073741824 colors
30 bits
Aspect ratio1.778:1
16:9
1.778:1
16:9
1.778:1
16:9
1.778:1
16:9
Resolution1920 x 1080 pixels
Full HD / 1080p
3840 x 2160 pixels
Ultra HD (UHD) / 4K / 2160p
1920 x 1080 pixels
Full HD / 1080p
2560 x 1440 pixels
Quad HD (QHD) / 1440p
Pixel pitch0.311 mm
0.0311 cm
0.0123 in
0.001 ft
0.155 mm
0.0155 cm
0.0061 in
0.0005 ft
0.311 mm
0.0311 cm
0.0122 in
0.001 ft
0.233 mm
0.0233 cm
0.0092 in
0.0008 ft
Pixel density81 ppi
32 ppcm
163 ppi
64 ppcm
81 ppi
32 ppcm
109 ppi
42 ppcm
Display area90.67 %89.83 %90.42 %93.08 %
BacklightW-LEDW-LEDW-LEDW-LED
sRGB-99 %-100 %
NTSC (1953)72 %-83 %-
DCI P3---95 %
Brightness300 cd/m²350 cd/m²350 cd/m²350 cd/m²
Peak brightness-390 cd/m²--
Static contrast1000 : 11300 : 13000 : 11000 : 1
Horizontal viewing angle178 °178 °178 °178 °
Vertical viewing angle178 °178 °178 °178 °
Minimum response time4 ms
0.0040 s
4 ms
0.0040 s
4 ms
0.0040 s
5 ms
0.0050 s
Average response time8 ms
0.0080 s
8 ms
0.0080 s
-8 ms
0.0080 s
Input lag--9 ms
0.0090 s
-
CoatingAnti-glare/Matte (3H)Anti-glare/Matte (3H)Anti-glare/Matte (3H)Anti-glare/Matte (3H)
--Response time - 1 ms (MPRT - Motion Picture Response Time)-

3D

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

3DNoNoNoNo

Frequencies

Information about the horizontal and vertical refresh rates/frequencies.

Horizontal frequency (digital)30 kHz - 83 kHz130 kHz - 137 kHz-31.47 kHz - 88.79 kHz
Vertical frequency (digital)48 Hz - 75 Hz40 Hz - 60 Hz48 Hz - 144 Hz56 Hz - 60 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 V100 V - 120 V
220V220 V - 240 V220 V - 240 V220 V - 240 V220 V - 240 V
Alternating current frequency50 Hz - 60 Hz50 Hz - 60 Hz50 Hz - 60 Hz50 Hz - 60 Hz
Electric current (A)---2.4 A
Power consumption (off)0.3 W0.3 W-0.3 W
Power consumption (sleep)0.3 W0.3 W0.5 W0.3 W
Power consumption (eco)14.64 W24.3 W-20.32 W
Power consumption (average)21 W28 W27 W20.4 W
Power consumption (maximum)41 W52 W46 W197 W
Power consumption (annual)46.14 kWh76.21 kWh-66.74 kWh
Energy efficiency class---E

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.

Width609.9 mm
60.99 cm
24.0118 in
2.001 ft
611.6 mm
61.16 cm
24.0787 in
2.0066 ft
608.4 mm
60.84 cm
23.9528 in
1.9961 ft
611.34 mm
61.134 cm
24.0685 in
2.0057 ft
Height363.6 mm
36.36 cm
14.315 in
1.1929 ft
364.6 mm
36.46 cm
14.3543 in
1.1962 ft
364.1 mm
36.41 cm
14.3346 in
1.1946 ft
352.01 mm
35.201 cm
13.8587 in
1.1549 ft
Depth54 mm
5.4 cm
2.126 in
0.1772 ft
55.4 mm
5.54 cm
2.1811 in
0.1818 ft
96.3 mm
9.63 cm
3.7913 in
0.3159 ft
49.5 mm
4.95 cm
1.9488 in
0.1624 ft
Weight4.4 kg
9.7 lbs
4.7 kg
10.36 lbs
4.06 kg
8.95 lbs
4.78 kg
10.54 lbs
Width with stand609.9 mm
60.99 cm
24.0118 in
2.001 ft
611.6 mm
61.16 cm
24.0787 in
2.0066 ft
608.4 mm
60.84 cm
23.9528 in
1.9961 ft
611.34 mm
61.134 cm
24.0685 in
2.0057 ft
Height with stand452.12 mm
45.212 cm
17.8 in
1.4833 ft
400.1 mm
40.01 cm
15.752 in
1.3127 ft
493.2 mm
49.32 cm
19.4173 in
1.6181 ft
385.13 mm
38.513 cm
15.1626 in
1.2635 ft
Depth with stand186.8 mm
18.68 cm
7.3543 in
0.6129 ft
174.7 mm
17.47 cm
6.878 in
0.5732 ft
190.4 mm
19.04 cm
7.4961 in
0.6247 ft
185 mm
18.5 cm
7.2835 in
0.607 ft
Weight with stand5.4 kg
11.9 lbs
6.4 kg
14.11 lbs
8.86 kg
19.53 lbs
7.02 kg
15.48 lbs
Box weight7.7 kg
16.98 lbs
9.2 kg
20.28 lbs
8.72 kg
19.22 lbs
10.01 kg
22.07 lbs
Stand width---268 mm
26.8 cm
10.5512 in
0.8793 ft
Stand height---185 mm
18.5 cm
7.2835 in
0.607 ft
Stand depth---381.5 mm
38.15 cm
15.0197 in
1.2516 ft
ColorsSilverSilverBlackBlack and silver

Ergonomics

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

VESA mountYesYesYesYes
VESA interface100 x 100 mm100 x 100 mm100 x 100 mm100 x 100 mm
Removable standYesYesYesYes
Height adjustmentNoYesYesYes
Height adjustment range-110 mm
11 cm
4.3307 in
0.3609 ft
100 mm
10 cm
3.937 in
0.3281 ft
150 mm
15 cm
5.9055 in
0.4921 ft
Landscape/portrait pivotNoYesNoYes
Left pivot-90 °-90 °
Right pivot-90 °-90 °
Left/right swivelNoYesNoYes
Left swivel-30 °-45 °
Right swivel-30 °-45 °
Forward/backward tiltYesYesYesYes
Forward tilt5 °5 °5 °5 °
Backward tilt21 °21 °21 °21 °
Stand width - 257.2 mm
Stand depth - 186.8 mm
Stand width - 257 mm
Stand depth - 174.7 mm
--

Audio

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

Speakers2 x 3 W2 x 3 W--

Camera

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

CameraNoNoNoNo

Connectivity

Available connectivity ports, slots and interfaces.

Connectivity2 x HDMI 1.4
1 x 3.5 mm Audio Out
2 x HDMI 2.0
1 x DisplayPort 1.2
1 x 3.5 mm Audio Out
2 x HDMI 1.4
1 x DisplayPort 1.2
1 x 3.5 mm Audio Out
3 x USB 3.2 (Type-A)
1 x USB 3.2 (Type-A; BC 1.2)
1 x USB 3.2 (Type-C; DP 1.4; PD 90W)
1 x USB 3.2 (Type-C; upstream)
1 x USB 3.2 (Type-C; PD 15W)
1 x Ethernet RJ45
1 x HDMI 1.4
1 x DisplayPort 1.4
1 x DisplayPort 1.4 (Output MST)
1 x 3.5 mm Audio Out
High-bandwidth Digital Content Protection (HDCP) 1.4High-bandwidth Digital Content Protection (HDCP) 2.2High-bandwidth Digital Content Protection (HDCP) 1.4High-bandwidth Digital Content Protection (HDCP) 1.4

Features

Some additional functional features of the model.

Features3-sided bezeless design
AMD FreeSync technology
Flicker-free technology
Low Blue Light
3-sided bezeless design
AMD FreeSync technology
Flicker-free technology
Low Blue Light
AMD FreeSync Premium
Flicker-free technology
Low Blue Light
NVIDIA G-SYNC Compatible
Dell ComfortView Plus
Flicker-free technology
Low Blue Light

Certificates, standards and licenses

Licenses from regulatory agencies, standards, certificates.

Certificates, standards and licensesENERGY STAR 8.0
EPEAT
RoHS
TCO Certified
TUV Flicker Free
TUV Low Blue Light
ENERGY STAR 8.0
EPEAT
RoHS
TCO Certified
TUV Flicker Free
TUV Low Blue Light
ENERGY STAR
EPEAT
TCO Certified
RoHS
ENERGY STAR
EPEAT Gold
TCO Certified Edge Display
RoHS
NFPA 99

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
0 °C - 40 °C
32 °F - 104 °F
Operating humidity10 % - 80 %10 % - 80 %10 % - 80 %10 % - 80 %
Operating altitude5000 m
16404.2 ft
5000 m
16404.2 ft
5000 m
16404.2 ft
5000 m
16404.2 ft
Storage temperature-20 °C - 60 °C
-4 °F - 140 °F
-20 °C - 60 °C
-4 °F - 140 °F
-20 °C - 60 °C
-4 °F - 140 °F
-20 °C - 60 °C
-4 °F - 140 °F
Storage humidity5 % - 90 %5 % - 90 %5 % - 90 %5 % - 90 %
Storage altitude12192 m
40000 ft
12192 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.

AccessoriesHDMI cableHDMI cable-DisplayPort cable
USB Type-C to Type-A cable
USB Type-C to Type-C cable

Additional features

Information about other features.

Additional featuresAnti-theft stand lock slot - KensingtonAnti-theft stand lock slot - Kensington-Security lock slot
 Dell S2721HDell S2721QSDell S2721HGFDell U2722DE