Comparison between HP U28 4K HDR vs Lenovo L28u-35

General Info
Model Number	HP U28 4K HDR	Lenovo L28u-35

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2020	2022
Brand	HP	Lenovo
Model Number	U28 4K HDR	L28u-35
Alias	1Z978AA	66ECGAC4
Display
Screen Size Class	28" (inches)	28" (inches)
Diagonal Size	27.9 in 70.9 cm 708.538 mm 2.32 ft	28 in 71.1 cm 711.2 mm 2.33 ft
Screen Width	24.45 in 62.1 cm 620.928 mm 2.04 ft	24.45 in 62.1 cm 620.928 mm 2.04 ft
Screen Height	13.44 in 34.1 cm 341.28 mm 1.12 ft	13.44 in 34.1 cm 341.28 mm 1.12 ft
Display Manufacturer		Innolux
Display Type	IPS	AAS 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	0.116 mm	0.16 mm
Screen Pixel Density	157 ppi	157 ppi
Screen-to-Body Ratio	89.61 %	89.03 %
Backlight Source	W-LED	W-LED
DCI P3	93%	90%
sRGB	100 %	99 %
Screen Brightness	400 cd/m²	300 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Dynamic Screen Contrast		3000000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Display Minimum Response Time	4 ms	4 ms
Display Average Response Time		6 ms
Display Maximum Response Time		14 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte
HDR	HDR	HDR10
3D	No	No
Size, weight, color
Case Depth	1.71 in 4.3 cm 43.4 mm 0.14 ft	1.93 in 4.9 cm 48.9 mm 0.16 ft
Case Weight		4.6 kg 10 lbs
Case Width with Stand	25.08 in 63.7 cm 637.1 mm 2.09 ft	25.07 in 63.7 cm 636.9 mm 2.09 ft
Case Height with Stand	20.92 in 53.1 cm 531.4 mm 1.74 ft	16.51 in 41.9 cm 419.3 mm 1.38 ft
Case Depth with Stand	7.48 in 19 cm 189.9 mm 0.62 ft	8.46 in 21.5 cm 215 mm 0.71 ft
Case Weight with Stand	6.35 kg 14 lbs	6.6 kg 15 lbs
Case Color	Black	Raven Black
Hardware
Internal Storage	8
Built-in Camera	No	No
Connectivity	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)	1 x 3.5 mm Audio Out 2 x HDMI 2.0 1 x DisplayPort 1.4
Audio
Audio Speakers	2 x 3W	2 x 2W
Features
Cool Features	Flicker-free technology Low Blue Light	Flicker-free technology Natural Low Blue Light 3-side NearEdgeless design AMD FreeSync technology
Extra Features	Security lock slot	Anti-theft stand lock slot - Kensington
Ergonomics
Case Width	25.08 in 63.7 cm 637.1 mm 2.09 ft	25.07 in 63.7 cm 636.9 mm 2.09 ft
Case Height	14.61 in 37.1 cm 371.2 mm 1.22 ft	14.71 in 37.4 cm 373.7 mm 1.23 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		360 °
Right Swivel		360 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	23 °	22 °
Frequency and Interpolation
Vertical Digital Frequency	23 Hz - 75 Hz	60 Hz
Horizontal Digital Frequency	30 kHz - 140 kHz
Screen Interpolation Measurement Unit	NULL	NULL
Accessories
Extras	DisplayPort cable HDMI cable USB Type-C cable	HDMI cable
Certificates and Standards
Licenses	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	CCC China Energy Efficiency Standard Tier 2 ENERGY STAR Eyesafe Display Certification RoHS (EU 2002/95/EC) TCO 9.0 TCO Edge 2.0 TÜV Low Blue Light (Hardware Solution) TÜV Rheinland Eye Comfort Volatile Organic Compound Certification Windows Certification
Usage and Storage Requirements
Safe Operating Temperature Level	5 °C - 35 °C 41 °F - 95 °F	0 °C - 45 °C 32 °F - 113 °F
Safe Operating Humidity Level	20 % - 80 %	10 % - 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 U28 4K HDR

Lenovo L28u-35