Comparison between HP EliteDisplay S231d vs HP EliteDisplay E221

General Info
Model Number	HP EliteDisplay S231d	HP EliteDisplay E221

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2014	2013
Brand	HP	HP
Model Number	EliteDisplay S231d	EliteDisplay E221
Alias	F3J72AA	C9V76AA
Display
Screen Size Class	23" (inches)	22" (inches)
Diagonal Size	22.99 in 58.4 cm 584 mm 1.92 ft	21.5 in 54.6 cm 546.1 mm 1.79 ft
Screen Width	20.05 in 50.9 cm 509.184 mm 1.67 ft	18.77 in 47.7 cm 476.64 mm 1.56 ft
Screen Height	11.28 in 28.6 cm 286.416 mm 0.94 ft	10.56 in 26.8 cm 268.11 mm 0.88 ft
Display Manufacturer		AU Optronics BOE Innolux
Display Type	IPS	TN
Display Bit Depth	8 bits (6 bits + FRC)	8 bits (6 bits + FRC)
Frame Rate Control	Yes	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	0.248 mm
Screen Pixel Density	95 ppi	102 ppi
Screen-to-Body Ratio	81.48 %	81.25 %
Backlight Source	W-LED	W-LED
NTSC 1953	72 %
Screen Brightness	250 cd/m²	250 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Dynamic Screen Contrast	5000000 : 1	5000000 : 1
Screen Horizontal Viewing Angle	178 °	170 °
Screen Vertical Viewing Angle	178 °	160 °
Display Minimum Response Time	7 ms	5 ms
Display Coating	Anti-glare/Matte	Anti-glare/Matte (3H)
3D	No	No
Size, weight, color
Case Depth	2.01 in 5.1 cm 51 mm 0.17 ft	2.01 in 5.1 cm 51 mm 0.17 ft
Case Weight	3.87 kg 9 lbs	3.1 kg 7 lbs
Case Width with Stand	21.42 in 54.4 cm 544 mm 1.78 ft	20.04 in 50.9 cm 509 mm 1.67 ft
Case Height with Stand	18.5 in 47 cm 469.9 mm 1.54 ft	18.11 in 46 cm 460 mm 1.51 ft
Case Depth with Stand	9.54 in 24.2 cm 242.4 mm 0.8 ft	9.33 in 23.7 cm 237 mm 0.78 ft
Case Weight with Stand	6.12 kg 13 lbs	5.64 kg 12 lbs
Case Color	Black	Black
Hardware
Built-in Camera	Yes	No
Connectivity	2 x USB 3.0 (downstream) 1 x Ethernet RJ45 1 x D-sub 1 x 3.5 mm Audio Out 1 x 3.5 mm Audio In 1 x DisplayPort 1.2 2 x USB 2.0 (downstream) 1 x USB 2.0 (upstream)	1 x DisplayPort 1.2 1 x DVI-D Dual Link 1 x D-sub 2 x USB 2.0 (downstream) 1 x USB 2.0 (upstream)
Audio
Features
Cool Features	HDCP (High-bandwidth Digital Content Protection)	DDC/CI HDCP (High-bandwidth Digital Content Protection)
Extra Features	Security lock slot	Security lock slot
Ergonomics
Case Width	21.42 in 54.4 cm 544 mm 1.78 ft	20.04 in 50.9 cm 509 mm 1.67 ft
Case Height	12.95 in 32.9 cm 329 mm 1.08 ft	12.17 in 30.9 cm 309 mm 1.01 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	150 mm 15 cm 5.9055 in 0.4921 ft	150 mm 15 cm 5.9055 in 0.4921 ft
Landscape or Portrait Pivot Support	Yes	Yes
Left Pivot	0 °	0 °
Right Pivot	90 °	90 °
Left or Right Swivel Support	Yes	Yes
Left Swivel	180 °	180 °
Right Swivel	180 °	180 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	30 °	30 °
Frequency and Interpolation
Vertical Digital Frequency	50 Hz - 60 Hz	50 Hz - 76 Hz
Horizontal Digital Frequency	24 kHz - 80 kHz	24 kHz - 94 kHz
Accessories
Extras	D-sub cable DisplayPort cable USB cable	D-sub cable DisplayPort cable USB 2.0 upstream cable
Certificates and Standards
Licenses	BSMI C-Tick CB CCC CE CECP CEL Grade 1 EAC ENERGY STAR Epeat Gold FCC Class B ICE ISC KC KCC NOM PSB SEPA TCO Certified Displays 6.0 TCO EDGE TÜV/S VCCI-B WHQL (Windows 8; Windows 7)	BSMI CB CCC CE CECP CEL Grade 1 ENERGY STAR EPA Epeat Gold/Silver (market dependent) FCC Class B ISC KC KCC NOM PSB SEPA TCO Certified Displays TÜV/S VCCI WHQL (Windows 8; Windows 7)
Usage and Storage Requirements
Safe Operating Temperature Level	5 °C - 35 °C 41 °F - 95 °F	5 °C - 35 °C 41 °F - 95 °F
Safe Operating Humidity Level	20 % - 80 %	20 % - 80 %
Internal Storage Temperature	-20 °C - 60 °C -4 °F - 140 °F	-20 °C - 60 °C -4 °F - 140 °F
Internal Storage Humidity	5 % - 95 %	5 % - 95 %
Max Operating Altitude	5000	5000
Max Storage Altitude	12192	12192

HP EliteDisplay S231d

HP EliteDisplay E221