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Compare Dell S2721DGF vs ViewSonic XG320Q vs ViewSonic XG251G

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 3.1 (Type-B; upstream), 2x HDMI 2.0, 1x 3.5 mm Audio Out, 1x DisplayPort 1.2, 1x USB (Micro-USB), 3x USB 3.1 (Type-A; downstream)
2x HDMI 2.0, 1x DisplayPort 1.4, 1x 3.5 mm Audio Out, 1x USB 3.2 (Type-B; upstream), 3x USB 3.2 (Type-A; downstream)

Construction

Adjustment | Height
130 mm / 5.1181 in
120 mm / 4.7244 in
120 mm / 4.7244 in
Adjustment | Pivot
-90° ~ 90°
N/A
-90° ~ 90°
Adjustment | Swivel
-45° ~ 45°
-25° ~ 25°
-30° ~ 30°
Adjustment | Tilt
-5° ~ 21°
-5° ~ 20°
-5° ~ 15°
Camera
No
No
No
Colors
Black
Black
Black
Speakers
2x 2W
VESA Mount
100 x 100 mm
100 x 100 mm
100 x 100 mm

Dimensions

Bezels
90.07% screen-to-body ratio
83.07% screen-to-body ratio
Size | Depth
2.67 in / 67.8 mm w/o stand, 7.89 in / 200.3 mm w/ stand
10.44 in / 265.21 mm w/ stand
2.64 in / 67 mm w/o stand, 9.76 in / 248 mm w/ stand
Size | Height
14.31 in / 363.6 mm w/o stand, 15.51 in / 393.9 mm w/ stand
18.99 in / 482.3 mm w/ stand
13.98 in / 355 mm w/o stand, 16.1 in / 408.9 mm w/ stand
Size | Width
24.08 in / 611.6 mm
28.59 in / 726.28 mm
21.97 in / 558 mm
Weight
4.5 kg / 10 lbs w/o stand
14.56 kg / 32 lbs w/ stand
3.6 kg / 8 lbs w/o stand , 6.1 kg / 13 lbs w/ stand

Display

Aspect Ratio
16:9
16:9
16:9
Brightness
400 nits
600 nits (peak)
400 nits
Contrast Ratio
1000:1 (static)
1000:1 (static)
1000:1 (static), 120000000:1 (dynamic)
Display Backlight
W-LED
W-LED
W-LED
Display Color Depth
10 bits, 1073741824 colors
10 bits (8 bits + FRC), 1073741824 colors
8 bits, 16777216 colors
Display Diagonal
27" (26.96 in / 684.7 mm)
32" (32 in / 812.87 mm)
25" (24.5 in / 622.3 mm)
Display Type
IPS, Anti-glare/Matte (3H)
IPS, Anti-glare/Matte (3H)
IPS, Anti-glare/Matte (3H)
Gamut
98% DCI-P3
99% Adobe RGB
78% NTSC, 99% sRGB
Pixel Density
109 ppi
91 ppi
89 ppi
Pixel Pitch
0.233 mm
0.277 mm
0.283 mm
Refresh Rate
30 Hz ~ 165 Hz
48 Hz ~ 175 Hz
48 Hz ~ 360 Hz
Resolution
QHD (2560x1440)
QHD (2560x1440)
FHD (1920x1080)
Response Time
1 ms (min)
1 ms (min)
Viewing Angle
178° H / 178° V
178° H / 178° V
178° H / 178° V

Function

HDR
DisplayHDR 400
DisplayHDR 600
DisplayHDR 400
Licenses
ENERGY STAR, EPEAT, TCO Certified, RoHS
cTUVus or cULus, FCC-B, ICES003, CEC, MX-CoC, Mexico Energy
BSMI, CB, CCC, CE, CE EMC, CEC, CEL, cTUVus, EAC, ErP, FCC-B, GEMS, ICES003, Mexico Energy, NOM, NRCan, RCM, REACH, RoHS, UkrSEPRO, UKCA, WEEE
Operating Humidity
10 % ~ 80 %
20 % ~ 90 %
20 % ~ 90 %
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
NVIDIA G-SYNC
NVIDIA G-SYNC
Video
Low Blue Light, RGB lights, Flicker-free technology
Crosshair, Elite RGB Lighting, PureXP Motion Blur Reduction, Flicker-free technology, Low Blue Light, Quantum Dot Color, Game Mode, Fast IPS, Adaptive-Sync technology, Low Input Lag, Black Stabilizer
Flicker-free technology, Low Blue Light, Adaptive-Sync technology, Extreme Low Latency with NVIDIA Reflex

Performance

Power Consumption
32 W (average) / 90 W (max) / 0.3 W (sleep)
43.8 W (average) / 0.3 W (sleep)
30 W (average) / 35 W (max) / 24 W (eco) / 0.5 W (sleep) / 0.5 W (off)

Production

Accessory
DisplayPort cable, HDMI cable, USB 3.0 cable
DisplayPort cable, USB 3.2 Type-A to Type-B cable
Debut
2020
2021
2021

Reviews

Neofiliac score
94%
84%
79%
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 600
  • Stand with tilt, swivel, and height adjustments
  • High 1000:1 contrast ratio
  • 10-bit display panel
  • Support for NVIDIA G-SYNC
  • 175 Hz refresh rate
  • 360Hz max refresh rate
  • DisplayHDR 400
  • Stand with tilt, swivel, pivot, and height adjustments
  • Fast 1 ms response time
  • High 1000:1 contrast ratio
  • Support for NVIDIA G-SYNC
  • Build-in speakers included
Cons
  • 8-bit display panel
  • Questionable build quality

Price

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