Comparison between Dell UltraSharp U2311H vs Dell S2421HS

General Info
Model Number	Dell UltraSharp U2311H	Dell S2421HS

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2010	2020
Brand	Dell	Dell
Model Number	UltraSharp U2311H	S2421HS
Alias		S2421HSX
Display
Screen Size Class	23" (inches)	24" (inches)
Diagonal Size	23 in 58.4 cm 584.2 mm 1.92 ft	23.8 in 60.4 cm 604.478 mm 1.98 ft
Screen Width	20.05 in 50.9 cm 509.184 mm 1.67 ft	20.75 in 52.7 cm 527.04 mm 1.73 ft
Screen Height	11.28 in 28.6 cm 286.416 mm 0.94 ft	11.67 in 29.6 cm 296.46 mm 0.97 ft
Display Manufacturer	LG Display
Display Type	e-IPS	IPS
Display Bit Depth	8 bits (6 bits + FRC)	8 bits
Frame Rate Control	Yes
Max Number of Colors	16777216	16777216
Bits	24	24
Screen Aspect Ratio	16:9	16:9
Screen Resolution	1920 x 1080	1920 x 1080
Screen Pixel Pitch	0.265 mm	0.275 mm
Screen Pixel Density	95 ppi	92 ppi
Screen-to-Body Ratio	81.87 %	90.06 %
Backlight Source	CCFL	W-LED
sRGB	100 %
Adobe RGB 1998	69 %
NTSC 1953	72 %	72 %
Screen Brightness	300 cd/m²	250 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Dynamic Screen Contrast	10000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Screen Input Lag	11 ms
Display Minimum Response Time	8 ms	4 ms
Display Average Response Time		8 ms
Display Maximum Response Time	14 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
3D	No	No
Size, weight, color
Case Depth	2.56 in 6.5 cm 65 mm 0.21 ft	2.12 in 5.4 cm 53.8 mm 0.18 ft
Case Weight	4.7 kg 10 lbs	3.2 kg 7 lbs
Case Width with Stand	21.65 in 55 cm 549.97 mm 1.8 ft	21.17 in 53.8 cm 537.8 mm 1.76 ft
Case Height with Stand	14.02 in 35.6 cm 356.16 mm 1.17 ft	13.65 in 34.7 cm 346.8 mm 1.14 ft
Case Depth with Stand	7.25 in 18.4 cm 184.1 mm 0.6 ft	6.29 in 16 cm 159.7 mm 0.52 ft
Case Weight with Stand	7 kg 15 lbs	4.8 kg 11 lbs
Case Color	Black	Black, Silver
Hardware
Built-in Camera	No	No
Connectivity	1 x DisplayPort 1.2 1 x DVI-D Dual Link 1 x D-sub 4 x USB 2.0 (downstream) 1 x USB 2.0 (upstream)	1 x 3.5 mm Audio Out 1 x HDMI 1.4 1 x DisplayPort 1.2
Audio
Features
Cool Features	HDCP (High-bandwidth Digital Content Protection)	Flicker-free technology Low Blue Light 3-sided bezeless design AMD FreeSync technology
Extra Features	Security lock slot	Anti-theft stand lock slot - Kensington S2421HS - silver S2421HSX - black
Ergonomics
Case Width	21.57 in 54.8 cm 547.97 mm 1.8 ft	21.17 in 53.8 cm 537.8 mm 1.76 ft
Case Height	12.8 in 32.5 cm 325.1 mm 1.07 ft	12.7 in 32.3 cm 322.6 mm 1.06 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	100 x 100	100 x 100
Removable VESA Stand	Yes	Yes
Height Adjustment	Yes	Yes
Height Adjustment Range	115 mm 11.5 cm 4.5276 in 0.3773 ft	100 mm 10 cm 3.937 in 0.3281 ft
Landscape or Portrait Pivot Support	Yes	Yes
Left Pivot	0 °	90 °
Right Pivot	90 °	90 °
Left or Right Swivel Support	Yes	Yes
Left Swivel	35 °	30 °
Right Swivel	35 °	30 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	2 °	5 °
Backward Tilt	10 °	21 °
Frequency and Interpolation
Vertical Digital Frequency	56 Hz - 75 Hz	48 Hz - 75 Hz
Horizontal Digital Frequency	30 kHz - 83 kHz	30 kHz - 83 kHz
Screen Interpolation Measurement Unit		NULL
Accessories
Extras	D-sub cable DVI cable USB upstream cable	HDMI cable
Certificates and Standards
Licenses	ENERGY STAR 5.0 Epeat Silver TCO Certified Displays 5.0	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	4850	5000
Max Storage Altitude	12192	12192

Dell UltraSharp U2311H

Dell S2421HS