Comparison between HP E27k G5 4K vs HP U28 4K HDR

General Info
Model Number	HP E27k G5 4K	HP U28 4K HDR

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Type	Monitor	Monitor
Year	2023	2020
Brand	HP	HP
Model Number	E27k G5 4K	U28 4K HDR
Alias	6N4C4AA	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	10 bits (8 bits + FRC)	10 bits (8 bits + FRC)
Frame Rate Control	Yes	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	0.155 mm	0.116 mm
Screen Pixel Density	163 ppi	157 ppi
Screen-to-Body Ratio	89.59 %	89.61 %
Backlight Source	W-LED	W-LED
DCI P3		93%
sRGB	99 %	100 %
Screen Brightness	350 cd/m²	400 cd/m²
Static Screen Contrast	1000 : 1	1000 : 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	1.82 in 4.6 cm 46.2 mm 0.15 ft	1.71 in 4.3 cm 43.4 mm 0.14 ft
Case Width with Stand	24.15 in 61.3 cm 613.4 mm 2.01 ft	25.08 in 63.7 cm 637.1 mm 2.09 ft
Case Height with Stand		20.92 in 53.1 cm 531.4 mm 1.74 ft
Case Depth with Stand		7.48 in 19 cm 189.9 mm 0.62 ft
Case Weight with Stand		6.35 kg 14 lbs
Case Color	Black and Siler	Black
Hardware
Internal Storage		8
Built-in Camera	No	No
Network	LAN
Connectivity	3 x USB 3.2 (Type-A; Gen 1; 5 Gbps; downstream) 1 x Ethernet RJ45 1 x DisplayPort 1.4 1 x HDMI 2.0 1 x USB 3.2 (Type-C; Gen 1; 5 Gbps; upstream; 65W; DP Alt Mode) 1 x USB 3.2 (Type-C; Gen 1; 5 Gbps; downstream; 15W)	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	2 x 3W
Features
Cool Features	HP Display Center HP Eye Ease Low Blue Light 3-sided micro-edge bezel Flicker-free technology	Flicker-free technology Low Blue Light
Extra Features	Security lock slot	Security lock slot
Ergonomics
Case Width	24.15 in 61.3 cm 613.4 mm 2.01 ft	25.08 in 63.7 cm 637.1 mm 2.09 ft
Case Height	14.35 in 36.5 cm 364.5 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	45 °
Right Swivel	45 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	20 °	23 °
Frequency and Interpolation
Vertical Digital Frequency	30 Hz - 60 Hz	23 Hz - 75 Hz
Horizontal Digital Frequency	30 kHz - 135 kHz	30 kHz - 140 kHz
Screen Interpolation Measurement Unit	NULL	NULL
Accessories
Extras	USB Type-C to Type-C cable	DisplayPort cable HDMI cable USB Type-C cable
Certificates and Standards
Licenses	BIS BSMI CB CCC CE CEC CECP CEL EAC ENERGY STAR EPEAT FCC ISC ICE ISO 9241-307 KC/KCC NOM PSB SEPA TCO Certified TCO Certified Edge TÜV Low Blue Light Hardware Solution TUV-S VCCI WEEE TGM TUV-GS	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 E27k G5 4K

HP U28 4K HDR