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Compare Dell S2721DGF vs Dell U2520D vs Dell P3221D

Connectivity

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

Construction

Adjustment | Height
130 mm / 5.1181 in
130 mm / 5.1181 in
150 mm / 5.9055 in
Adjustment | Pivot
-90° ~ 90°
-90° ~ 90°
-90° ~ 90°
Adjustment | Swivel
-45° ~ 45°
-45° ~ 45°
-30° ~ 30°
Adjustment | Tilt
-5° ~ 21°
-5° ~ 21°
-5° ~ 21°
Camera
No
No
No
Colors
Black
Black
Apollo Gray
VESA Mount
100 x 100 mm
100 x 100 mm
100 x 100 mm

Dimensions

Bezels
90.07% screen-to-body ratio
91.23% screen-to-body ratio
91.93% screen-to-body ratio
Size | Depth
2.67 in / 67.8 mm w/o stand, 7.89 in / 200.3 mm w/ stand
1.96 in / 49.9 mm w/o stand, 7.28 in / 185 mm w/ stand
2.18 in / 55.3 mm w/o stand, 9.06 in / 230 mm w/ stand
Size | Height
14.31 in / 363.6 mm w/o stand, 15.51 in / 393.9 mm w/ stand
13.07 in / 332.1 mm w/o stand, 15.07 in / 382.9 mm w/ stand
16.46 in / 418 mm w/o stand, 18.46 in / 468.8 mm w/ stand
Size | Width
24.08 in / 611.6 mm
22.35 in / 567.7 mm
28.09 in / 713.4 mm
Weight
4.5 kg / 10 lbs w/o stand
4.2 kg / 9 lbs w/o stand , 6.4 kg / 14 lbs w/ stand
6.4 kg / 14 lbs w/o stand , 11.2 kg / 25 lbs w/ stand

Display

Aspect Ratio
16:9
16:9
16:9
Brightness
400 nits
350 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, 16777216 colors
10 bits (8 bits + FRC), 1073741824 colors
Display Diagonal
27" (26.96 in / 684.7 mm)
25" (24.98 in / 634.4 mm)
32" (31.53 in / 800.98 mm)
Display Type
IPS, Anti-glare/Matte (3H)
IPS, Anti-glare/Matte (3H)
IPS, Anti-glare/Matte (3H)
Gamut
98% DCI-P3
95% DCI-P3, 99% sRGB
99% sRGB
Pixel Density
109 ppi
117 ppi
93 ppi
Pixel Pitch
0.233 mm
0.216 mm
0.273 mm
Refresh Rate
30 Hz ~ 165 Hz
60 Hz
56 Hz ~ 76 Hz
Resolution
QHD (2560x1440)
QHD (2560x1440)
QHD (2560x1440)
Response Time
1 ms (min)
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
ENERGY STAR, EPEAT, TCO Certified, RoHS
BFR-free, CEL, ENERGY STAR 6.0, EPEAT, Mercury-free, NFPA 99, PVC-free, RoHS Compliant, TCO Certified Displays
ENERGY STAR 8.0, EPEAT, RoHS, TCO Certified, TUV Flicker Free, TUV Low Blue Light
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
NVIDIA G-SYNC, AMD FreeSync Premium
Video
Low Blue Light, RGB lights, Flicker-free technology
Flicker-free technology, Low Blue Light
Low Blue Light, 3-sided bezeless design, Flicker-free technology

Performance

Power Consumption
32 W (average) / 90 W (max) / 0.3 W (sleep)
24 W (average) / 200 W (max) / 0.3 W (sleep) / 0.3 W (off)
50.2 W (average) / 145 W (max) / 20.6 W (eco) / 0.3 W (sleep) / 0.3 W (off)
Power Supply
65 W Power Delivery via USB-C

Production

Accessory
DisplayPort cable, HDMI cable, USB 3.0 cable
DisplayPort cable, USB Type-C to Type-C cable, USB Type-C to Type-A cable
DisplayPort cable, USB Type-C to Type-A cable, USB Type-C to Type-C cable
Debut
2020
2020
2020

Reviews

Neofiliac score
94%
83%
72%
Pros
  • DisplayHDR 400
  • Rich color reproduction
  • Stand with tilt, swivel, pivot, and height adjustments
  • Fast 1 ms response time
  • High 1000:1 contrast ratio
  • 10-bit display panel
  • Support for NVIDIA G-SYNC
  • High 90.07 % screen-to-body ratio
  • DisplayHDR 400
  • Rich color reproduction
  • Stand with tilt, swivel, pivot, and height adjustments
  • High 1000:1 contrast ratio
  • High 91.23 % screen-to-body ratio
  • Stand with tilt, swivel, pivot, and height adjustments
  • High 1000:1 contrast ratio
  • 10-bit display panel
  • High 91.93 % 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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