Comparison between HP E27d G4 QHD vs HP U28 4K HDR

General Info
Model Number	HP E27d G4 QHD	HP U28 4K HDR

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2020	2020
Brand	HP	HP
Model Number	E27d G4 QHD	U28 4K HDR
Alias	E27d QHD Advanced Docking Monitor	1Z978AA
Display
Screen Size Class	27" (inches)	28" (inches)
Diagonal Size	27 in 68.6 cm 685.8 mm 2.25 ft	27.9 in 70.9 cm 708.538 mm 2.32 ft
Screen Width	23.49 in 59.7 cm 596.736 mm 1.96 ft	24.45 in 62.1 cm 620.928 mm 2.04 ft
Screen Height	13.22 in 33.6 cm 335.664 mm 1.1 ft	13.44 in 34.1 cm 341.28 mm 1.12 ft
Display Type	IPS	IPS
Display Bit Depth	8 bits	10 bits (8 bits + FRC)
Frame Rate Control		Yes
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	0.116 mm
Screen Pixel Density	109 ppi	157 ppi
Screen-to-Body Ratio	89.19 %	89.61 %
Backlight Source	W-LED	W-LED
DCI P3		93%
sRGB	99 %	100 %
Screen Brightness	300 cd/m²	400 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Dynamic Screen Contrast	5000000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Display Minimum Response Time	5 ms	4 ms
Display Coating	Anti-glare/Matte	Anti-glare/Matte (3H)
HDR		HDR
3D	No	No
Size, weight, color
Case Depth	1.91 in 4.9 cm 48.5 mm 0.16 ft	1.71 in 4.3 cm 43.4 mm 0.14 ft
Case Weight	5.5 kg 12 lbs
Case Width with Stand	24.16 in 61.4 cm 613.6 mm 2.01 ft	25.08 in 63.7 cm 637.1 mm 2.09 ft
Case Height with Stand	21.08 in 53.5 cm 535.4 mm 1.76 ft	20.92 in 53.1 cm 531.4 mm 1.74 ft
Case Depth with Stand	19.09 in 48.5 cm 485 mm 1.59 ft	7.48 in 19 cm 189.9 mm 0.62 ft
Case Weight with Stand	8.2 kg 18 lbs	6.35 kg 14 lbs
Case Color	Black	Black
Hardware
Internal Storage		8
Built-in Camera	Yes	No
Connectivity	1 x USB 3.1 (Type-C; downstream; 15W) 1 x Ethernet RJ45 1 x DisplayPort 1.2 (in) 1 x 3.5 mm Microphone In 1 x DisplayPort 1.2 (out) 1 x HDMI 1.4 4 x USB 3.0 (Type-A; 7.5W) 1 x 3.5 mm Audio Out 1 x USB 3.1 (Type-C; upstream; 100W)	1 x HDMI 2.0 1 x DisplayPort 1.2 1 x 3.5 mm Audio Out 1 x USB (Type-C; upstream; 65W; DP Alt Mode) 3 x USB 3.2 (Type-A; Gen 1; downstream)
Audio
Audio Speakers		2 x 3W
Features
Cool Features	Microphone Infra-Red Sensor Webcam Flicker-free technology Low Blue Light	Flicker-free technology Low Blue Light
Extra Features		Security lock slot
Ergonomics
Case Width	24.16 in 61.4 cm 613.6 mm 2.01 ft	25.08 in 63.7 cm 637.1 mm 2.09 ft
Case Height	14.41 in 36.6 cm 366 mm 1.2 ft	14.61 in 37.1 cm 371.2 mm 1.22 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
Landscape or Portrait Pivot Support	Yes	Yes
Left Pivot	90 °	90 °
Right Pivot	90 °	90 °
Left or Right Swivel Support	Yes	Yes
Left Swivel	30 °
Right Swivel	30 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	20 °	23 °
Frequency and Interpolation
Vertical Digital Frequency	48 Hz - 75 Hz	23 Hz - 75 Hz
Horizontal Digital Frequency	30 kHz - 90 kHz	30 kHz - 140 kHz
Screen Interpolation Measurement Unit	NULL	NULL
Accessories
Extras	HDMI cable DisplayPort cable USB Type-C cable	DisplayPort cable HDMI cable USB Type-C cable
Certificates and Standards
Licenses	CE CB KC KCC NOM ISO 9241-307 EAC TUVGS cTUVus PSB CCC CEL ISC VCCI FCC BSMI Vietnam MEPS Australian-New Zealand MEPS WEEE BIS CEC EStandby CECP TUV-S	Australian-New Zealand MEPS BSMI CB CCC CE CECP CEL EAC ENERGY STAR FCC ISO 9241-307 KC/KCC NOM PSB SEPA TCO Certified TUV-S UL/CSA VCCI Vietnam MEPS WEEE ISC WW application ICE
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
Internal Storage Humidity	5 % - 95 %
Max Operating Altitude	5000
Max Storage Altitude	12192

HP E27d G4 QHD

HP U28 4K HDR