Comparison between Dell S2721D vs Dell S3221QS

General Info
Model Number	Dell S2721D	Dell S3221QS

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2020	2020
Brand	Dell	Dell
Model Number	S2721D	S3221QS
Display
Screen Size Class	27" (inches)	32" (inches)
Diagonal Size	26.96 in 68.5 cm 684.7 mm 2.25 ft	31.5 in 80 cm 800.1 mm 2.63 ft
Screen Width	23.49 in 59.7 cm 596.736 mm 1.96 ft	27.45 in 69.7 cm 697.31 mm 2.29 ft
Screen Height	13.22 in 33.6 cm 335.664 mm 1.1 ft	15.44 in 39.2 cm 392.26 mm 1.29 ft
Display Curvature		1800
Display Type	IPS	VA
Display Bit Depth	8 bits	10 bits
Max Number of Colors	16777216	1073741824
Bits	24	30
Screen Aspect Ratio	16:9	16:9
Screen Resolution	2560 x 1440	3840 x 2160
Screen Pixel Pitch	0.233 mm	0.182 mm
Screen Pixel Density	109 ppi	140 ppi
Screen-to-Body Ratio	89.83 %	90.79 %
Backlight Source	W-LED	W-LED
DCI P3		90%
sRGB	99 %	99 %
Adobe RGB 1998		80 %
Screen Brightness	320 cd/m²	300 cd/m²
Max Screen Brightness		370 cd/m²
Static Screen Contrast	1000 : 1	3000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Screen Input Lag	10 ms
Display Minimum Response Time	4 ms	4 ms
Display Average Response Time	8 ms	8 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
3D	No	No
Size, weight, color
Case Depth	2.18 in 5.5 cm 55.4 mm 0.18 ft	2.52 in 6.4 cm 64 mm 0.21 ft
Case Weight	4.4 kg 10 lbs	7.4 kg 16 lbs
Case Width with Stand	24.08 in 61.2 cm 611.6 mm 2.01 ft	27.92 in 70.9 cm 709.2 mm 2.33 ft
Case Height with Stand	17.85 in 45.3 cm 453.4 mm 1.49 ft	17.64 in 44.8 cm 448.1 mm 1.47 ft
Case Depth with Stand	7.35 in 18.7 cm 186.8 mm 0.61 ft	8.15 in 20.7 cm 207 mm 0.68 ft
Case Weight with Stand	5.4 kg 12 lbs	10.9 kg 24 lbs
Case Color	Silver	Silver
Hardware
Built-in Camera	No	No
Connectivity	1 x 3.5 mm Audio Out 2 x HDMI 1.4 1 x DisplayPort 1.2	2 x HDMI 2.0 1 x DisplayPort 1.2 1 x 3.5 mm Audio Out 2 x USB 3.0 (Type-A; downstream) 1 x USB 3.0 (Type-B; upstream)
Audio
Audio Speakers	2 x 3W	2 x 5W
Features
Cool Features	Flicker-free technology Low Blue Light 3-sided bezeless design AMD FreeSync technology	Flicker-free technology Low Blue Light 3-sided bezeless design AMD FreeSync technology
Extra Features	Anti-theft stand lock slot - Kensington	Anti-theft stand lock slot - Kensington
Ergonomics
Case Width	24.08 in 61.2 cm 611.6 mm 2.01 ft	27.92 in 70.9 cm 709.2 mm 2.33 ft
Case Height	14.35 in 36.5 cm 364.6 mm 1.2 ft	16.72 in 42.5 cm 424.8 mm 1.39 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	100 x 100	100 x 100
Removable VESA Stand	Yes	Yes
Height Adjustment	No	Yes
Height Adjustment Range		70 mm 7 cm 2.7559 in 0.2297 ft
Landscape or Portrait Pivot Support	No	No
Left or Right Swivel Support	No	No
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	21 °	21 °
Frequency and Interpolation
Vertical Digital Frequency	48 Hz - 75 Hz	40 Hz - 60 Hz
Horizontal Digital Frequency	30 kHz - 115 kHz	29 kHz - 140 kHz
Screen Interpolation Measurement Unit	NULL	NULL
Accessories
Extras	HDMI cable	HDMI cable
Certificates and Standards
Licenses	ENERGY STAR 8.0 EPEAT RoHS TCO Certified TUV Flicker Free TUV Low Blue Light	ENERGY STAR 8.0 EPEAT RoHS TCO Certified TUV Flicker Free TUV Low Blue Light
Usage and Storage Requirements
Safe Operating Temperature Level	0 °C - 40 °C 32 °F - 104 °F	0 °C - 40 °C 32 °F - 104 °F
Safe Operating Humidity Level	10 % - 80 %	10 % - 80 %
Internal Storage Temperature	-20 °C - 60 °C -4 °F - 140 °F	-20 °C - 60 °C -4 °F - 140 °F
Internal Storage Humidity	5 % - 90 %	5 % - 90 %
Max Operating Altitude	5000	5000
Max Storage Altitude	12192	12192

Dell S2721D

Dell S3221QS