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Compare Dell P3421W vs Dell P2421DC vs Dell S2722DC

Connectivity

Ports
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)
2x USB 3.0 (downstream), 1x HDMI 1.4, 1x DisplayPort 1.2 (in), 1x DisplayPort 1.2 (out), 1x USB (Type-C; 65W), 2x USB 2.0 (downstream)
2x HDMI 2.0, 1x DisplayPort 1.2, 2x 3.5 mm Audio Out, 1x USB (Type-C; upstream; 65W; DP Alt Mode), 2x USB 3.2 (Type-A; Gen 1; downstream)

Construction

Adjustment | Height
150 mm / 5.9055 in
130 mm / 5.1181 in
110 mm / 4.3307 in
Adjustment | Pivot
-4° ~ 4°
-90° ~ 90°
-90° ~ 90°
Adjustment | Swivel
-30° ~ 30°
-45° ~ 45°
-30° ~ 30°
Adjustment | Tilt
-5° ~ 21°
-5° ~ 21°
-5° ~ 21°
Camera
No
No
No
Colors
Black and Silver
Silver
Form Factor
Curved monitor
Speakers
2x 5W
2x 3W
VESA Mount
100 x 100 mm
100 x 100 mm
100 x 100 mm

Dimensions

Bezels
90.13% screen-to-body ratio
89.82% screen-to-body ratio
Size | Depth
9.35 in / 237.4 mm w/ stand
1.68 in / 42.7 mm w/o stand, 6.54 in / 166 mm w/ stand
2.18 in / 55.43 mm w/o stand, 6.88 in / 174.72 mm w/ stand
Size | Height
15.4 in / 391.1 mm w/ stand
12.68 in / 322.1 mm w/o stand, 14.02 in / 356.1 mm w/ stand
14.36 in / 364.64 mm w/o stand, 15.75 in / 400.05 mm w/ stand
Size | Width
32.11 in / 815.7 mm
21.17 in / 537.8 mm
24.08 in / 611.6 mm
Weight
6.7 kg / 15 lbs w/o stand
3.77 kg / 8 lbs w/o stand
5.4 kg / 12 lbs w/o stand , 7.16 kg / 16 lbs w/ stand

Display

Aspect Ratio
21:9
16:9
16:9
Brightness
300 nits
300 nits
350 nits
Contrast Ratio
1000:1 (static)
1000:1 (static)
1000:1 (static)
Display Backlight
W-LED
W-LED
W-LED
Display Color Depth
10 bits, 1073741824 colors
8 bits (6 bits + FRC), 16777216 colors
8 bits, 16777216 colors
Display Curvature
3800R
Display Diagonal
34" (34.14 in / 867.2 mm)
24" (23.78 in / 604 mm)
27" (26.96 in / 684.67 mm)
Display Type
IPS, Anti-glare/Matte (3H), LG Display
IPS, Anti-glare/Matte (3H)
IPS, Anti-glare/Matte (3H)
Gamut
99% sRGB
99% sRGB
99% sRGB
Pixel Density
109 ppi
123 ppi
109 ppi
Pixel Pitch
0.233 mm
0.206 mm
0.233 mm
Refresh Rate
60 Hz
60 Hz
48 Hz ~ 75 Hz
Resolution
UW-QHD (3440x1440)
QHD (2560x1440)
QHD (2560x1440)
Response Time
5 ms (min) / 8 ms (avg)
5 ms (min) / 8 ms (avg)
4 ms (min) / 5 ms (avg) / 8 ms (max)
Viewing Angle
178° H / 178° V
178° H / 178° V
178° H / 178° V

Function

Licenses
Energy Star, EPEAT, RoHS, TCO Certified Displays, TUV Rheinland Flicker Free Certified, TUV Rheinland Low Blue Light Certified
ENERGY STAR, EPEAT, RoHS, TCO Certified Display
TUV Rheinland Low Blue Light (Hardware Solution)
Operating Humidity
10 % ~ 80 %
10 % ~ 90 %
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
Video
KVM Switch, Low Blue Light, Picture-in-Picture, Picture-by-Picture, ComfortView, Flicker-free technology
Low Blue Light, Daisy Chain Availability, Flicker-free technology
Dell Display Manager, Flicker-free technology, Low Blue Light, ComfortView

Performance

Energy Efficiency
E
Power Consumption
32.75 W (average) / 126 W (max) / 0.3 W (sleep) / 0.3 W (off)
25 W (average) / 127 W (max) / 0.3 W (sleep) / 0.3 W (off)
17.7 W (average) / 155 W (max) / 0.3 W (sleep) / 0.2 W (off)
Power Supply
65 W Power Delivery via USB-C

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 cable
DisplayPort cable (optional), HDMI cable (optional), USB Type-C to Type-C cable
Debut
2020
2020
2021

Reviews

Neofiliac score
64%
56%
50%
Pros
  • 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
  • Stand with tilt, swivel, pivot, and height adjustments
  • High 1000:1 contrast ratio
  • High 90.13 % screen-to-body ratio
  • Integrated USB-C hub
  • Stand with tilt, swivel, pivot, and height adjustments
  • High 1000:1 contrast ratio
  • Build-in speakers included
  • Integrated USB-C hub
Cons
  • No publicized HDR support
  • No publicized HDR support
  • 8-bit display panel
  • No publicized HDR support
  • 8-bit display panel

Price

Offers (incl. referral links)
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