Comparison between Acer DM431 vs Dell S3221QS

General Info
Model Number	Acer DM431	Dell S3221QS

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2019	2020
Brand	Acer	Dell
Model Series	DM1
Model Number	DM431	S3221QS
Alias	DM431Kbmiiipx DM431 Kbmiiipx
Display
Screen Size Class	43" (inches)	32" (inches)
Diagonal Size	42.52 in 108 cm 1080 mm 3.54 ft	31.5 in 80 cm 800.1 mm 2.63 ft
Screen Width	37.05 in 94.1 cm 941.184 mm 3.09 ft	27.45 in 69.7 cm 697.31 mm 2.29 ft
Screen Height	20.84 in 52.9 cm 529.416 mm 1.74 ft	15.44 in 39.2 cm 392.26 mm 1.29 ft
Display Curvature		1800
Display Type	IPS	VA
Display Bit Depth	10 bits (8 bits + FRC)	10 bits
Frame Rate Control	Yes
Max Number of Colors	1073741824	1073741824
Bits	30	30
Screen Aspect Ratio	16:9	16:9
Screen Resolution	3840 x 2160	3840 x 2160
Screen Pixel Pitch	0.245 mm	0.182 mm
Screen Pixel Density	103 ppi	140 ppi
Screen-to-Body Ratio		90.79 %
Backlight Source	W-LED	W-LED
DCI P3		90%
sRGB		99 %
Adobe RGB 1998		80 %
NTSC 1953	72 %
Screen Brightness	250 cd/m²	300 cd/m²
Max Screen Brightness		370 cd/m²
Static Screen Contrast	1000 : 1	3000 : 1
Dynamic Screen Contrast	100000000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Display Minimum Response Time	5 ms	4 ms
Display Average Response Time	8 ms	8 ms
Display Coating		Anti-glare/Matte (3H)
HDR	HDR10
3D	No	No
Size, weight, color
Case Depth		2.52 in 6.4 cm 64 mm 0.21 ft
Case Weight	7.7 kg 17 lbs	7.4 kg 16 lbs
Case Width with Stand	37.85 in 96.1 cm 961.4 mm 3.15 ft	27.92 in 70.9 cm 709.2 mm 2.33 ft
Case Height with Stand	23.91 in 60.7 cm 607.4 mm 1.99 ft	17.64 in 44.8 cm 448.1 mm 1.47 ft
Case Depth with Stand	9.45 in 24 cm 240 mm 0.79 ft	8.15 in 20.7 cm 207 mm 0.68 ft
Case Weight with Stand	7.9 kg 17 lbs	10.9 kg 24 lbs
Case Color	Black	Silver
Hardware
Built-in Camera	No	No
Connectivity	1 x DisplayPort 1.2 1 x D-sub 1 x 3.5 mm Audio Out 2 x HDMI 1.4 1 x HDMI 2.0	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 5W	2 x 5W
Features
Cool Features	Flicker-free technology HDCP (High-bandwidth Digital Content Protection) 2.2 Picture-by-Picture Picture-in-Picture Low Blue Light Blue Light Filter DDC/CI	Flicker-free technology Low Blue Light 3-sided bezeless design AMD FreeSync technology
Extra Features		Anti-theft stand lock slot - Kensington
Ergonomics
Case Width		27.92 in 70.9 cm 709.2 mm 2.33 ft
Case Height		16.72 in 42.5 cm 424.8 mm 1.39 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	200 x 200	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	No	Yes
Forward Tilt		5 °
Backward Tilt		21 °
Frequency and Interpolation
Vertical Digital Frequency	23 Hz - 75 Hz	40 Hz - 60 Hz
Horizontal Digital Frequency	24 kHz - 83 kHz	29 kHz - 140 kHz
Screen Interpolation Measurement Unit		NULL
Accessories
Extras	Audio cable D-sub cable DisplayPort cable	HDMI cable
Certificates and Standards
Licenses	CB CCC CE CECP cETLus eSTANDBY EAC FCC Class B ISO9241-307 J-MOS KUCAS RCM RoHS SEMKO TÜV/Ergonomics WEEE VCCI	ENERGY STAR 8.0 EPEAT RoHS TCO Certified TUV Flicker Free TUV Low Blue Light
Usage and Storage Requirements
Safe Operating Temperature Level	5 °C - 35 °C 41 °F - 95 °F	0 °C - 40 °C 32 °F - 104 °F
Safe Operating Humidity Level	10 % - 85 %	10 % - 80 %
Internal Storage Temperature	-20 °C - 60 °C -4 °F - 140 °F	-20 °C - 60 °C -4 °F - 140 °F
Internal Storage Humidity	20 % - 80 %	5 % - 90 %
Max Operating Altitude	3658	5000
Max Storage Altitude	12192	12192

Acer DM431

Dell S3221QS