Comparison between HP U28 4K HDR vs LG 27UL550

General Info
Model Number	HP U28 4K HDR	LG 27UL550

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2020	2019
Brand	HP	LG
Model Number	U28 4K HDR	27UL550
Alias	1Z978AA	27UL550-W
Display
Screen Size Class	28" (inches)	27" (inches)
Diagonal Size	27.9 in 70.9 cm 708.538 mm 2.32 ft	26.96 in 68.5 cm 684.7 mm 2.25 ft
Screen Width	24.45 in 62.1 cm 620.928 mm 2.04 ft	23.49 in 59.7 cm 596.736 mm 1.96 ft
Screen Height	13.44 in 34.1 cm 341.28 mm 1.12 ft	13.22 in 33.6 cm 335.664 mm 1.1 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	0.116 mm	0.155 mm
Screen Pixel Density	157 ppi	163 ppi
Screen-to-Body Ratio	89.61 %	86.66 %
Backlight Source	W-LED	W-LED
DCI P3	93%
sRGB	100 %	98 %
Screen Brightness	400 cd/m²	300 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	4 ms	5 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
HDR	HDR	HDR10
3D	No	No
Size, weight, color
Case Depth	1.71 in 4.3 cm 43.4 mm 0.14 ft	1.81 in 4.6 cm 46 mm 0.15 ft
Case Weight		4.4 kg 10 lbs
Case Width with Stand	25.08 in 63.7 cm 637.1 mm 2.09 ft	24.53 in 62.3 cm 623 mm 2.04 ft
Case Height with Stand	20.92 in 53.1 cm 531.4 mm 1.74 ft	18.19 in 46.2 cm 462 mm 1.52 ft
Case Depth with Stand	7.48 in 19 cm 189.9 mm 0.62 ft	9.06 in 23 cm 230 mm 0.75 ft
Case Weight with Stand	6.35 kg 14 lbs	6 kg 13 lbs
Case Color	Black	White, Gray
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
Features
Cool Features	Flicker-free technology Low Blue Light	Black Stabilizer Blue Light Filter Dynamic Action Sync HDCP (High-bandwidth Digital Content Protection) 2.2 Flicker-free technology DDC/CI 6-Axis Control Super Resolution+ 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	24.53 in 62.3 cm 623 mm 2.04 ft
Case Height	14.61 in 37.1 cm 371.2 mm 1.22 ft	14.61 in 37.1 cm 371 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		110 mm 11 cm 4.3307 in 0.3609 ft
Landscape or Portrait Pivot Support	Yes	Yes
Left Pivot	90 °	90 °
Right Pivot	90 °	90 °
Left or Right Swivel Support	Yes	No
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	23 °	15 °
Frequency and Interpolation
Vertical Digital Frequency	23 Hz - 75 Hz	40 Hz - 61 Hz
Horizontal Digital Frequency	30 kHz - 140 kHz
Screen Interpolation Measurement Unit	NULL
Accessories
Extras	DisplayPort cable HDMI cable USB Type-C cable	DisplayPort 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	C-Tick CCC CECP CEL cUL ENERGY STAR 7.0 Epeat Gold ErP FCC Class B KC RoHS Compliant TÜV/GS VCCI
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 %	10 % - 85 %

HP U28 4K HDR

LG 27UL550