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Compare Dell S3422DWG vs Dell P3421W vs Dell U2720Q

Connectivity

Ports
2x HDMI 2.0, 1x DisplayPort 1.4, 1x 3.5 mm Audio Out (headphones), 1x 3.5 mm Audio Out, 4x USB 3.2 (Type-A; Gen 1; downstream), 1x USB 3.2 (Type-B; Gen 1; upstream)
2x USB 3.2 (Type-A; Gen 1; downstream; 5 Gbps), 1x USB 3.2 (Type-B; Gen 1; upstream), 1x DisplayPort 1.2, 1x HDMI 2.0, 2x USB 2.0 (Type-A; downstream), 1x USB 3.1 (Type-C; upstream; 65W; DP Alt Mode)
1x USB 3.0 (Type-C; 90W; DisplayPort), 1x USB 3.0 (Type-C; downstream; 15W), 1x DisplayPort 1.4, 1x 3.5 mm Audio Out, 1x HDMI 2.0 (CEC), 1x USB 3.0 (downstream; BC 1.2 charging at 2A), 2x USB 3.0 (Type-A; downstream)

Construction

Adjustment | Height
100 mm / 3.937 in
150 mm / 5.9055 in
130 mm / 5.1181 in
Adjustment | Pivot
-4° ~ 4°
-4° ~ 4°
-90° ~ 90°
Adjustment | Swivel
N/A
-30° ~ 30°
-45° ~ 45°
Adjustment | Tilt
-5° ~ 21°
-5° ~ 21°
-5° ~ 21°
Camera
No
No
No
Colors
Black
Black and Silver
Black
Form Factor
Curved monitor
Curved monitor
Speakers
2x 5W
VESA Mount
100 x 100 mm
100 x 100 mm
100 x 100 mm

Dimensions

Bezels
89.88% screen-to-body ratio
92.04% screen-to-body ratio
Size | Depth
3.38 in / 85.851 mm w/o stand, 9.35 in / 237.61 mm w/ stand
9.35 in / 237.4 mm w/ stand
1.96 in / 49.7 mm w/o stand, 7.28 in / 185 mm w/ stand
Size | Height
14.42 in / 366.36 mm w/o stand, 16.82 in / 427.31 mm w/ stand
15.4 in / 391.1 mm w/ stand
14.02 in / 356 mm w/o stand, 15.56 in / 395.2 mm w/ stand
Size | Width
31.81 in / 807.9 mm
32.11 in / 815.7 mm
24.07 in / 611.3 mm
Weight
7.71 kg / 17 lbs w/o stand , 10.38 kg / 23 lbs w/ stand
6.7 kg / 15 lbs w/o stand
4.4 kg / 10 lbs w/o stand , 6.6 kg / 15 lbs w/ stand

Display

Aspect Ratio
21:9
21:9
16:9
Brightness
400 nits
300 nits
350 nits
Contrast Ratio
3000:1 (static)
1000:1 (static)
1300:1 (static)
Display Backlight
W-LED
W-LED
W-LED
Display Color Depth
8 bits, 16777216 colors
10 bits, 1073741824 colors
10 bits (8 bits + FRC), 1073741824 colors
Display Curvature
1800R
3800R
Display Diagonal
34" (34.03 in / 864.25 mm)
34" (34.14 in / 867.2 mm)
27" (26.96 in / 684.7 mm)
Display Type
VA, Anti-glare/Matte (3H)
IPS, Anti-glare/Matte (3H), LG Display
IPS, Anti-glare/Matte (3H)
Gamut
90% DCI-P3, 99% sRGB
99% sRGB
95% DCI-P3, 99% sRGB
Pixel Density
109 ppi
109 ppi
163 ppi
Pixel Pitch
0.232 mm
0.233 mm
0.155 mm
Refresh Rate
48 Hz ~ 144 Hz
60 Hz
60 Hz
Resolution
UW-QHD (3440x1440)
UW-QHD (3440x1440)
4K (3840x2160)
Response Time
2 ms (min) / 4 ms (avg) / 8 ms (max)
5 ms (min) / 8 ms (avg)
5 ms (min) / 8 ms (avg)
Viewing Angle
178° H / 178° V
178° H / 178° V
178° H / 178° V

Function

HDR
DisplayHDR 400
DisplayHDR 400
Licenses
RoHS
Energy Star, EPEAT, RoHS, TCO Certified Displays, TUV Rheinland Flicker Free Certified, TUV Rheinland Low Blue Light Certified
BFR-free, CEL, ENERGY STAR 6.0, EPEAT, Mercury-free, NFPA 99, PVC-free, RoHS Compliant, TCO
Operating Humidity
10 % ~ 80 %
10 % ~ 80 %
10 % ~ 80 %
Operating Temperature
0 °C ~ 40 °C , 32 °F ~ 104 °F
0 °C ~ 40 °C , 32 °F ~ 104 °F
0 °C ~ 40 °C , 32 °F ~ 104 °F
Variable Framerate
AMD FreeSync Premium
Video
Dell Display Manager, Flicker-free technology, Picture-by-Picture, Picture-in-Picture, Low Blue Light, ComfortView
KVM Switch, Low Blue Light, Picture-in-Picture, Picture-by-Picture, ComfortView, Flicker-free technology
Flicker-free technology, Low Blue Light

Performance

Power Consumption
30 W (average) / 90 W (max) / 0.3 W (sleep) / 0.2 W (off)
32.75 W (average) / 126 W (max) / 0.3 W (sleep) / 0.3 W (off)
33 W (average) / 200 W (max) / 0.3 W (sleep) / 0.3 W (off)

Production

Accessory
DisplayPort cable, HDMI cable, USB Type-A to Type-B cable, USB Type-C to Type-C cable
DisplayPort cable, USB Type-C to Type-C cable, USB Type-C to Type-A cable
Debut
2021
2020
2020

Reviews

Neofiliac score
77%
64%
90%
Pros
  • DisplayHDR 400
  • Ultra-wide form factor
  • 1800 curvature
  • Rich color reproduction
  • Stand with tilt, pivot, and height adjustments
  • High 3000:1 contrast ratio
  • Ultra-wide form factor
  • 3800 curvature
  • Stand with tilt, swivel, pivot, and height adjustments
  • High 1000:1 contrast ratio
  • 10-bit display panel
  • Build-in speakers included
  • DisplayHDR 400
  • Rich color reproduction
  • Stand with tilt, swivel, pivot, and height adjustments
  • High 1300:1 contrast ratio
  • 10-bit display panel
  • High 92.04 % screen-to-body ratio
  • Integrated USB-C hub
Cons
  • 8-bit display panel
  • No publicized HDR support

Price

Offers (incl. referral links)
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