Comparison between HP U28 4K HDR vs Acer CM3271K

General Info
Model Number	HP U28 4K HDR	Acer CM3271K

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2020	2020
Brand	HP	Acer
Model Series		ConceptD CM3
Model Number	U28 4K HDR	CM3271K
Alias	1Z978AA	СМ3271Κ bmiiрruzх
Display
Screen Size Class	28" (inches)	27" (inches)
Diagonal Size	27.9 in 70.9 cm 708.538 mm 2.32 ft	27 in 68.6 cm 685.8 mm 2.25 ft
Screen Width	24.45 in 62.1 cm 620.928 mm 2.04 ft	24.04 in 61.1 cm 610.536 mm 2 ft
Screen Height	13.44 in 34.1 cm 341.28 mm 1.12 ft	13.77 in 35 cm 349.864 mm 1.15 ft
Display Type	IPS	IPS
Display Bit Depth	10 bits (8 bits + FRC)	10 bits
Frame Rate Control	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	0.159 mm
Screen Pixel Density	157 ppi	160 ppi
Screen-to-Body Ratio	89.61 %
Backlight Source	W-LED	W-LED
DCI P3	93%
sRGB	100 %
Adobe RGB 1998		99 %
Screen Brightness	400 cd/m²	350 cd/m²
Max Screen Brightness		400 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Dynamic Screen Contrast		100000000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Display Minimum Response Time	4 ms	4 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte
HDR	HDR	DisplayHDR 400
3D	No	No
Size, weight, color
Case Depth	1.71 in 4.3 cm 43.4 mm 0.14 ft
Case Width with Stand	25.08 in 63.7 cm 637.1 mm 2.09 ft	29.7 in 75.4 cm 754.283 mm 2.47 ft
Case Height with Stand	20.92 in 53.1 cm 531.4 mm 1.74 ft	26.35 in 66.9 cm 669.311 mm 2.2 ft
Case Depth with Stand	7.48 in 19 cm 189.9 mm 0.62 ft	14.03 in 35.6 cm 356.38 mm 1.17 ft
Case Weight with Stand	6.35 kg 14 lbs	8.452 kg 19 lbs
Case Color	Black	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 DisplayPort 1.2 (a) 1 x 3.5 mm Audio Out 1 x USB 3.1 (Type-C; Gen 2; upstream; 15W; DP Alt Mode) 2 x HDMI 2.0
Audio
Audio Speakers	2 x 3W	2 x 4W
Features
Cool Features	Flicker-free technology Low Blue Light	Fliсkеr-frее tесhnоlоgy Light sеnsоr Раntоnе Vаlidаtеd Lоw Вluе Light Аdарtivе Соntrаst Маnаgеmеnt (АСМ) АМD FrееSynс Рrеmium
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	29.35 in 74.5 cm 745.4 mm 2.45 ft
Case Height	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		180 mm 18 cm 7.0866 in 0.5906 ft
Landscape or Portrait Pivot Support	Yes
Left Pivot	90 °
Right Pivot	90 °
Left or Right Swivel Support	Yes	Yes
Left Swivel		180 °
Right Swivel		180 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	23 °	35 °
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 USB 3.0 cable USB Type-C cable Shielding Hood
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	CE TÜV GS ISO9241-307 class II MPRII
Usage and Storage Requirements
Safe Operating Temperature Level	5 °C - 35 °C 41 °F - 95 °F
Safe Operating Humidity Level	20 % - 80 %

HP U28 4K HDR

Acer CM3271K