Comparison between HP EliteDisplay E221 vs HP EliteDisplay S231d

General Info
Model Number	HP EliteDisplay E221	HP EliteDisplay S231d

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2013	2014
Brand	HP	HP
Model Number	EliteDisplay E221	EliteDisplay S231d
Alias	C9V76AA	F3J72AA
Display
Screen Size Class	22" (inches)	23" (inches)
Diagonal Size	21.5 in 54.6 cm 546.1 mm 1.79 ft	22.99 in 58.4 cm 584 mm 1.92 ft
Screen Width	18.77 in 47.7 cm 476.64 mm 1.56 ft	20.05 in 50.9 cm 509.184 mm 1.67 ft
Screen Height	10.56 in 26.8 cm 268.11 mm 0.88 ft	11.28 in 28.6 cm 286.416 mm 0.94 ft
Display Manufacturer	AU Optronics BOE Innolux
Display Type	TN	IPS
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	0.248 mm	0.265 mm
Screen Pixel Density	102 ppi	95 ppi
Screen-to-Body Ratio	81.25 %	81.48 %
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	170 °	178 °
Screen Vertical Viewing Angle	160 °	178 °
Display Minimum Response Time	5 ms	7 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte
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	3.1 kg 7 lbs	3.87 kg 9 lbs
Case Width with Stand	20.04 in 50.9 cm 509 mm 1.67 ft	21.42 in 54.4 cm 544 mm 1.78 ft
Case Height with Stand	18.11 in 46 cm 460 mm 1.51 ft	18.5 in 47 cm 469.9 mm 1.54 ft
Case Depth with Stand	9.33 in 23.7 cm 237 mm 0.78 ft	9.54 in 24.2 cm 242.4 mm 0.8 ft
Case Weight with Stand	5.64 kg 12 lbs	6.12 kg 13 lbs
Case Color	Black	Black
Hardware
Built-in Camera	No	Yes
Connectivity	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)	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)
Audio
Features
Cool Features	DDC/CI HDCP (High-bandwidth Digital Content Protection)	HDCP (High-bandwidth Digital Content Protection)
Extra Features	Security lock slot	Security lock slot
Ergonomics
Case Width	20.04 in 50.9 cm 509 mm 1.67 ft	21.42 in 54.4 cm 544 mm 1.78 ft
Case Height	12.17 in 30.9 cm 309 mm 1.01 ft	12.95 in 32.9 cm 329 mm 1.08 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 - 76 Hz	50 Hz - 60 Hz
Horizontal Digital Frequency	24 kHz - 94 kHz	24 kHz - 80 kHz
Accessories
Extras	D-sub cable DisplayPort cable USB 2.0 upstream cable	D-sub cable DisplayPort cable USB cable
Certificates and Standards
Licenses	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)	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)
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 E221

HP EliteDisplay S231d