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Benq EW2780U vs. Dell S2721DGF + 8
Built-in speakers
no
no
2-channel (Stereo)
no
no
no
2-channel (Stereo)
no
2-channel (Stereo)
Built-in camera
No
No
No
No
No
No
No
Yes
No
No
3D support (3D-Ready)
No
No
No
No
No
No
No
No
Adaptive synchronization
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Synchronization technology
AMD FreeSync, G-SYNC Compatible
AMD FreeSync, G-SYNC Compatible
AMD FreeSync
AMD FreeSync, AMD FreeSync 2, G-SYNC Compatible
AMD FreeSync, G-SYNC Compatible
AMD FreeSync, G-SYNC Compatible
AMD FreeSync
AMD FreeSync, G-SYNC Compatible
HDCP
Yes
Yes
Yes
No
Yes
Yes
HDR
Yes
Yes
Yes
No
Yes
Yes
Yes
No
No
Yes
VESA DisplayHDR certification
DisplayHDR 400
DisplayHDR 1000
DisplayHDR 600
No
DisplayHDR 600
DisplayHDR 600
VESA mount
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Type of VESA mount
100x100mm
100x100mm
100x100mm
100x100mm
100x100mm
100x100mm
100x100mm
100x100mm
Built-in USB hub
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
USB 2.0
0
0
0
0
0
0
0
2
0
USB 3.0
4
2
4
2
2
2
4
3
2
USB connectors (total)
4
2
4
2
2
2
4
5
2
Component input (YPbPr/YCbCr)
0
0
0
0
0
0
0
0
0
Composite input
0
0
0
0
0
0
0
0
0
DisplayPort
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
DisplayPort version
1.4
1.4
1.4
1.2
1.4
1.4
1.4
1.2
1.2
1.4
Number of DisplayPort inputs
1
1
2
1
1
1
1
1
1
1
Number of DisplayPort outputs
0
0
0
0
0
0
0
0
0
Type of DisplayPort connector
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
DVI in
No
No
No
No
No
No
No
No
No
No
HDMI
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
HDMI version
2.0
2.0
1.4
2.0
2.0
2.0
1.4
2.0
Number of HDMI inputs
2
2
1
2
2
2
2
2
1
2
Supported standards
Headphone output
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Other connectors
Ethernet
S-video input
0
0
0
0
0
0
0
0
0
Thunderbolt
No
No
No
No
No
No
No
No
Yes
Thunderbolt version
Thunderbolt 3
USB for video
Yes
No
No
Yes
No
No
No
No
No
Yes
Type of USB connector
USB (Type C)
USB (Type A)
USB (Type A)
VGA in
Yes
No
No
Yes
No
No
No
Yes
Yes
No
Available colours
Black, Grey
Black, Silver
Black, White
Black, Red
Black, Red
Black, Red
Black, Red
Black, Red
Black, Silver, Grey
Black, White, Silver
Panel design
Flat
Flat
Curved
Flat
Flat
Flat
Curved
Curved
Flat
Curved
Screen curvature
1000R
2300R
1500R
Depth without stand
291 mm
44 mm
53.7 mm
56.3 mm
111 mm
73.2 mm
42.8 mm
97.4 mm
Depth
196 mm
200.3 mm
416.4 mm
227.4 mm
291.2 mm
274.4 mm
312 mm
227.36 mm
166 mm
285 mm
Height (min-max)
461.4 mm
393.9 - 523.9 mm
417 - 537 mm
504.6 mm
460.6 - 570.6 mm
464.8 - 574.8 mm
478 - 588 mm
398.6 - 528.6 mm
356.1 - 486.1 mm
473.7 mm
Height without stand
363.5 mm
352.9 mm
364.8 mm
394 mm
322.2 mm
393.4 mm
Product weight
6.7 kg
6.6 kg
16.7 kg
4.25 kg
7.7 kg
6.1 kg
9.2 kg
5.4 kg
5.25 kg
8.32 kg
Weight without stand
4.5 kg
14.1 kg
5.7 kg
4.2 kg
7 kg
4.1 kg
3.26 kg
6.45 kg
Width
614 mm
611.6 mm
1147.6 mm
539 mm
609.2 mm
614.2 mm
896 mm
612.37 mm
537.8 mm
865.4 mm
Eco labels
EnergyStar
EnergyStar
EnergyStar
EnergyStar
EnergyStar, EPEAT
TCO-labelling
TCO Displays 8.0
No
No
No
TCO Displays 8.0
Ascendable and submersible
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Height adjustment
130 mm
120 mm
130 mm
110 mm
110 mm
110 mm
130 mm
130 mm
110 mm
Features
USB Power Delivery (PD)
Flicker Free, Suitable for gaming
Suitable for gaming, Low input lag
Suitable for gaming, Low input lag
Flicker Free, Suitable for gaming
Flicker Free, Suitable for gaming, Low input lag
Flicker Free, Suitable for gaming
Flicker Free, Suitable for gaming
Flicker Free
Flicker Free, Suitable for gaming
Pivot function (can be rotated)
No
Yes
No
Yes
Yes
Yes
No
Yes
Yes
No
Swivel (rotate laterally / horizontally)
No
Yes
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Tiltable (can be tilted backwards / forwards)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Touchscreen
No
No
No
No
No
No
No
No
No
No
Aspect ratio
16:9
16:9
32:9
16:9
16:9
16:9
2.37:1 (21:9)
16:9
16:9
2.37:1 (21:9)
Brightness
350 cd/m²
400 cd/m²
600 cd/m²
250 cd/m²
400 cd/m²
350 cd/m²
450 cd/m²
250 cd/m²
250 cd/m²
450 cd/m²
Colour depth (per channel)
10 bits
10 bits
10 bits
6 bits
10 bits
10 bits
10 bits
8 bits
8 bits
10 bits
Colour gamut (Adobe RGB)
92 % of Adobe
108 % of Adobe
96 % of Adobe
89 % of Adobe
Colour gamut (DCI-P3)
98 % of DCI-P3
95 % of DCI-P3
87 % of DCI-P3
98 % of DCI-P3
98 % of DCI-P3
98 % of DCI-P3
98 % of DCI-P3
Colour gamut (NTSC)
88 % of NTSC
72 % of NTSC
Colour gamut (sRGB)
99 % of sRGB
125 % of sRGB
126 % of sRGB
135 % of sRGB
135 % of sRGB
120 % of sRGB
135 % of sRGB
Contrast
1300 :1
1000 :1
2500 :1
1000 :1
1000 :1
1000 :1
1000 :1
3000 :1
1000 :1
1000 :1
Display technology
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
Backlight
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
Panel type
IPS
IPS
VA
IPS
IPS
IPS
IPS
VA
IPS
IPS
Response time (BtW:Black-to-White)
1 ms
Response time (GtG:Grey-to-Grey)
5 ms
1 ms
1 ms
1 ms
1 ms
1 ms
1 ms
5 ms
1 ms
Dynamic contrast
20000000 :1
2500 :1
80000000 :1
1000 :1
80000000 :1
Maximum resolution
3840x2160
2560x1440
5120x1440
1920x1080
3840x2160
2560x1440
3840x1600
2560x1440
1920x1080
3840x1600
Picture-in-Picture (PIP)
Yes
No
Yes
No
No
No
No
Yes
Pixel density
163 PPI
109 PPI
109 PPI
93 PPI
163 PPI
109 PPI
110 PPI
92 PPI
111 PPI
Pixel size
0.16 mm
0.23 mm
0.27 mm
0.16 mm
0.23 mm
0.23 mm
0.27 mm
0.28 mm
0.23 mm
Refresh rate
60 Hz
165 Hz
240 Hz
144 Hz
144 Hz
144 Hz
160 Hz
144 Hz
60 Hz
144 Hz
Screen size
27 inches
27 inches
49 inches
23.8 inches
27 inches
27 inches
37.5 inches
27 inches
23.8 inches
38 inches
Screen surface
Matte
Matte
Matte
Matte
Matte
Matte
Matte
Viewing angle (horizontal)
178 degrees
178 degrees
178 degrees
178 degrees
178 degrees
178 degrees
178 degrees
178 degrees
178 degrees
178 degrees
Viewing angle (vertical)
178 degrees
178 degrees
178 degrees
178 degrees
178 degrees
178 degrees
178 degrees
178 degrees
178 degrees
178 degrees
Release year
2020
2020
2019
2020
2019
2020
2020
2018
2020
Connecting 9V/12V/14V
No
No
No
No
No
No
No
No
Operational Power Consumption (min-max)
39 W
32 W
108 W
21 W
42 - 95 W
39 - 65 W
70 - 140 W
28 W
16 - 40 W
80 W
Power consumption (standby)
0.5 W
0.3 W
0.3 W
0.3 W
0.5 W
0.5 W
0.5 W
0.3 W
0.3 W
0.5 W
Memory card reader
No
No
No
No
No
No
No
No
No