Comparison between:
- 27" Dell S2721D
- 23.8" Dell P2415Q

Brand, series, model

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

Dell S2721DDell P2415Q
Dell S2721DDell P2415Q
Model year20202014

Display

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

Size class27 in23.8 in
Diagonal684.7 mm
68.47 cm
26.9567 in
2.2464 ft
604.7 mm
60.47 cm
23.8071 in
1.9839 ft
Width596.736 mm
59.6736 cm
23.4935 in
1.9578 ft
527.04 mm
52.704 cm
20.7496 in
1.7291 ft
Height335.664 mm
33.5664 cm
13.2151 in
1.1013 ft
296.46 mm
29.646 cm
11.6717 in
0.9726 ft
Panel manufacturer-LG Display
Panel model-LM238WR2-SLA1
Panel typeIPSAH-IPS
Panel bit depth8 bits10 bits (8 bits + FRC)
FRC-Yes
Colors16777216 colors
24 bits
1073741824 colors
30 bits
Aspect ratio1.778:1
16:9
1.778:1
16:9
Resolution2560 x 1440 pixels
Quad HD (QHD) / 1440p
3840 x 2160 pixels
Ultra HD (UHD) / 4K / 2160p
Pixel pitch0.233 mm
0.0233 cm
0.0092 in
0.0008 ft
0.137 mm
0.0137 cm
0.0054 in
0.0005 ft
Pixel density109 ppi
42 ppcm
185 ppi
72 ppcm
Display area89.83 %82.05 %
BacklightW-LEDW-LED
sRGB99 %99 %
NTSC (1953)-72 %
Brightness320 cd/m²300 cd/m²
Static contrast1000 : 11000 : 1
Dynamic contrast-2000000 : 1
Horizontal viewing angle178 °178 °
Vertical viewing angle178 °178 °
Minimum response time4 ms
0.0040 s
6 ms
0.0060 s
Average response time8 ms
0.0080 s
8 ms
0.0080 s
Maximum response time-14 ms
0.0140 s
Input lag10 ms
0.0100 s
12 ms
0.0120 s
CoatingAnti-glare/Matte (3H)Anti-glare/Matte (3H)
-CIE1976 - 102.28%
CIE1931 - 82.09%

3D

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

3DNoNo

Frequencies

Information about the horizontal and vertical refresh rates/frequencies.

Horizontal frequency (digital)30 kHz - 115 kHz31 kHz - 140 kHz
Vertical frequency (digital)48 Hz - 75 Hz29 Hz - 76 Hz

Power supply and consumption

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

110V100 V - 120 V100 V - 120 V
220V220 V - 240 V220 V - 240 V
Alternating current frequency50 Hz - 60 Hz50 Hz - 60 Hz
Electric current (A)-1.8 A
Power consumption (off)0.3 W0.5 W
Power consumption (sleep)0.3 W0.5 W
Power consumption (eco)17.5 W-
Power consumption (average)19 W45 W
Power consumption (maximum)40 W90 W
Power consumption (annual)54.68 kWh-

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.

Width611.6 mm
61.16 cm
24.0787 in
2.0066 ft
566.64 mm
56.664 cm
22.3087 in
1.8591 ft
Height364.6 mm
36.46 cm
14.3543 in
1.1962 ft
336.06 mm
33.606 cm
13.2307 in
1.1026 ft
Depth55.4 mm
5.54 cm
2.1811 in
0.1818 ft
46.93 mm
4.693 cm
1.8476 in
0.154 ft
Weight4.4 kg
9.7 lbs
3.34 kg
7.36 lbs
Width with stand611.6 mm
61.16 cm
24.0787 in
2.0066 ft
566.64 mm
56.664 cm
22.3087 in
1.8591 ft
Height with stand453.4 mm
45.34 cm
17.8504 in
1.4875 ft
369.53 mm
36.953 cm
14.5484 in
1.2124 ft
Depth with stand186.8 mm
18.68 cm
7.3543 in
0.6129 ft
205 mm
20.5 cm
8.0709 in
0.6726 ft
Weight with stand5.4 kg
11.9 lbs
8.68 kg
19.14 lbs
Box weight7.9 kg
17.42 lbs
-
ColorsSilverBlack

Ergonomics

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

VESA mountYesYes
VESA interface100 x 100 mm100 x 100 mm
Removable standYesYes
Height adjustmentNoYes
Height adjustment range-130 mm
13 cm
5.1181 in
0.4265 ft
Landscape/portrait pivotNoYes
Left pivot-90 °
Right pivot-90 °
Left/right swivelNoYes
Left swivel-45 °
Right swivel-45 °
Forward/backward tiltYesYes
Forward tilt5 °5 °
Backward tilt21 °21 °
Stand width - 257.2 mm
Stand depth - 186.8 mm
-

Audio

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

Speakers2 x 3 W-

Camera

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

CameraNoNo

Connectivity

Available connectivity ports, slots and interfaces.

Connectivity2 x HDMI 1.4
1 x DisplayPort 1.2
1 x 3.5 mm Audio Out
4 x USB 3.0 (downstream)
1 x USB 3.0 (upstream)
1 x HDMI 1.4 (MHL)
1 x DisplayPort (Input mini)
1 x DisplayPort (Output MST)
1 x DisplayPort 1.2
1 x 3.5 mm Audio Out
High-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
-

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 6.0
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
Operating humidity10 % - 80 %10 % - 80 %
Operating altitude5000 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
Storage humidity5 % - 90 %5 % - 90 %
Storage altitude12192 m
40000 ft
12192 m
40000 ft

Accessories

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

AccessoriesHDMI cableDisplayPort cable - mini-DP to DP
Factory calibration report
USB 3.0 upstream cable

Additional features

Information about other features.

Additional featuresAnti-theft stand lock slot - KensingtonAnti-theft stand lock slot - Kensington
 Dell S2721DDell P2415Q