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Compare 5 products

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Dell S2721QS Monitor
Dell S2721QS
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Dell U2718Q Monitor
Dell U2718Q
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LG 27UL500-W Monitor
LG 27UL500-W
Close
LG 27UL550-W Monitor
LG 27UL550-W
Close
LG 27UL650-W Monitor
LG 27UL650-W
Available colors

General

Screen size27.0 in27.0 in27.0 in27.0 in27.0 in
Brightness350.0 cd/m²350.0 cd/m²300.0 cd/m²300.0 cd/m²350.0 cd/m²
Aspect ratio16:916:916:916:916:9

Design

Colour of productGreyBlack,Silver
  • Matte white back,matte black front
  • Silver
Silver
  • Silver
  • White ,black front
Panel designFlatFlatCurvedFlatFlat
Built-in USB hubnoyes
N/A
N/A
N/A
Built-in cameranono
N/A
N/A
N/A
Touchscreen
N/A
no
N/A
N/A
N/A
Screen surface
N/A
MatteMatteMatteMatte
Built-in speakers
N/A
nono
N/A
no

Dimensions

Height adjustment4.33 in5.12 in
N/A
N/A
N/A
Height (without stand)14.35 in14.02 in14.6 in14.61 in14.4 in
Height with stand20.08 in21.27 in18.1 in22.53 in22.3 in
Depth (with stand)6.88 in1.93 in8.2 in9.06 in9.1 in
Depth (without stand)2.18 in1.93 in
N/A
N/A
N/A
Width (with stand)24.08 in24.07 in24.5 in24.51 in24.1 in
Weight0.23 oz0.22 oz180.96 oz211.64 oz219.05 oz
Height (min-max)
N/A
540.2 - 670.2
N/A
N/A
N/A
Weight (without stand)
N/A
8.16 lb
N/A
N/A
N/A

Connectivity

DVI Portnono
N/A
N/A
N/A
HDMIyesyes
N/A
N/A
N/A
HDMI ports quantity21222
HDMI version2.02.0
N/A
N/A
N/A
Headphone outputnonoyesyesyes
DisplayPort version1.21.2
N/A
1.4
N/A
Analogue 3.5mm input
N/A
1
N/A
N/A
N/A
Number of USB 2.0 port
N/A
0
N/A
N/A
N/A
Number of USB 3.0 ports
N/A
4
N/A
N/A
N/A
USB connectors (total)
N/A
4
N/A
N/A
N/A
Component input (YPbPr/YCbCr)
N/A
no
N/A
N/A
N/A
Number of component inputs
N/A
0
N/A
N/A
N/A
Composite input
N/A
no
N/A
N/A
N/A
Number of composite inputs
N/A
0
N/A
N/A
N/A
DisplayPort
N/A
yes
N/A
N/A
N/A
HDCP
N/A
yes
N/A
yes
N/A
Number of HDMI inputs
N/A
1
N/A
N/A
N/A
S-video input
N/A
no
N/A
N/A
N/A
Number of s-video inputs
N/A
0
N/A
N/A
N/A
Thunderbolt
N/A
no
N/A
N/A
N/A
USB for video
N/A
no
N/A
N/A
N/A
VGA in
N/A
no
N/A
N/A
N/A
Number of DisplayPort inputs
N/A
2
N/A
N/A
N/A
Number of DisplayPort outputs
N/A
0
N/A
N/A
N/A
Type of DisplayPort connector
N/A
Standard
N/A
N/A
N/A
MHL
N/A
no
N/A
N/A
N/A
Headphone outputs quantity
N/A
N/A
N/A
1
N/A

Image properties

Supported graphics resolutions
  • 640 x 480
  • 720 x 400
  • 800 x 600
  • 1024 x 768
  • 1152 x 864
  • 1280 x 1024
  • 1600 x 900
  • 1920 x 1080
  • 2048 x 1280
  • 2560 x 1440
  • 3840 x 2160
3840 x 2160
N/A
N/A
N/A
Refresh rate60.0 Hz60.0 Hz60.0 Hz
N/A
60.0 Hz
HD type4K Ultra HD4K Ultra HD4K Ultra HD4K Ultra HD4K Ultra HD
Display number of colours1.07 billion colours1.073 billion colours1.073 billion colours1.073 billion colours1.073 billion colours
Display technologyLCDLCDLEDLEDLED
BacklightW-LEDLEDWLEDLED backlightLED backlight
Panel typeIPSIPSIPSIPSIPS
Response time4.0 ms8.0 ms5.0 ms5.0 ms5.0 ms
Viewing angle (horizontal)178.0 °178.0 °178.0 °178.0 °178.0 °
Viewing angle (vertical)178.0 °178.0 °178.0 °178.0 °178.0 °
Maximum resolution
N/A
3840 x 2160 px
N/A
N/A
N/A
Colour depth (per channel)
N/A
10.0 bit
N/A
N/A
N/A
Colour gamut (Adobe RGB)
N/A
99.9 %
N/A
N/A
N/A
Contrast ratio
N/A
1300:1
N/A
N/A
N/A
Response time (GtG)
N/A
5.0 ms
N/A
N/A
N/A
Response time (BtW)
N/A
14.0 ms
N/A
N/A
N/A
Picture-in-Picture (PIP)
N/A
no
N/A
N/A
N/A
Pixel size
N/A
0.01 in
N/A
N/A
N/A

Compatibility

VESA mountyesyesyesyesyes
Type of VESA mount100x100mm100x100mm100x100mm
N/A
100x100mm
3D support (3D-Ready)
N/A
no
N/A
no
N/A
Adaptive synchronization
N/A
no
N/A
N/A
N/A
HDR
N/A
yes
N/A
yesyes
VESA DisplayHDR certification
N/A
N/A
N/A
N/A
DisplayHDR 400

Power

Energy efficiency classGAGGG
Power consumption (standby)0.2 W0.3 W0.5 W0.5 W
N/A
Power consumption (typical)28.8 W30.0 W36.0 W36.0 W36.0 W
Connecting 9V/12V/14V
N/A
None
N/A
N/A
N/A
Operational power consumption
N/A
24 - 99
N/A
N/A
N/A

Often compared with Dell S2721QS

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Dell S2721QS Monitor
LG 27UL500
DellS2721QS
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Often compared with Dell U2718Q

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Often compared with LG 27UL500-W

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Often compared with LG 27UL550-W

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LG 27UL650
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Often compared with LG 27UL650-W

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LG27UL650-W
LG27UL850-W
LG 27UL650-W Monitor
LG 27UP650
LG27UL650-W
LG27UP650