Comparison between Acer CB281HK vs Gigabyte M28U

General Info
Model Number	Acer CB281HK	Gigabyte M28U

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2015	2021
Brand	Acer	Gigabyte
Model Number	CB281HK	M28U
Alias	CB281HKymjdpprz
Display
Screen Size Class	28" (inches)	29" (inches)
Diagonal Size	28 in 71.1 cm 711.2 mm 2.33 ft	28.63 in 72.7 cm 727.2 mm 2.39 ft
Screen Width	24.45 in 62.1 cm 620.93 mm 2.04 ft	24.88 in 63.2 cm 631.928 mm 2.07 ft
Screen Height	13.44 in 34.1 cm 341.28 mm 1.12 ft	14.16 in 36 cm 359.78 mm 1.18 ft
Display Type	TN	IPS
Display Bit Depth	10 bits (8 bits + FRC)	8 bits
Frame Rate Control	Yes
Max Number of Colors	1073741824	16777216
Bits	30	24
Screen Aspect Ratio	16:9	16:9
Screen Resolution	3840 x 2160	3840 x 2160
Screen Pixel Pitch	0.162 mm	0.16 mm
Screen Pixel Density	157 ppi	154 ppi
Screen-to-Body Ratio	84.24 %	95.94 %
Backlight Source	W-LED	W-LED
DCI P3		94%
sRGB	100 %	120 %
Screen Brightness	300 cd/m²	300 cd/m²
Max Screen Brightness		400 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Dynamic Screen Contrast	100000000 : 1
Screen Horizontal Viewing Angle	170 °	178 °
Screen Vertical Viewing Angle	160 °	178 °
Display Minimum Response Time	1 ms	2 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte
HDR		DisplayHDR 400
3D	No	No
Size, weight, color
Case Depth	2.54 in 6.5 cm 64.5 mm 0.21 ft	2.48 in 6.3 cm 63.1 mm 0.21 ft
Case Weight		5.18 kg 11 lbs
Case Width with Stand	25.93 in 65.9 cm 658.7 mm 2.16 ft	25.06 in 63.7 cm 636.5 mm 2.09 ft
Case Height with Stand	15.81 in 40.2 cm 401.5 mm 1.32 ft	14.96 in 38 cm 380 mm 1.25 ft
Case Depth with Stand	9.31 in 23.7 cm 236.5 mm 0.78 ft	7.62 in 19.4 cm 193.6 mm 0.64 ft
Case Weight with Stand	8 kg 18 lbs	6.93 kg 15 lbs
Case Color	Black	Black
Hardware
Built-in Camera	No	No
Connectivity	1 x DVI-D Dual Link 1 x 3.5 mm Audio Out 1 x HDMI 2.0 (MHL) 1 x DisplayPort 1.2	1 x USB 3.0 (Type-C; upstream) 2 x HDMI 2.1 1 x 3.5 mm Audio Out 1 x DisplayPort 1.3 (DSC) 3 x USB 3.0 (Type-A; downstream; BC 1.2 charging at 5V/1.5A) 1 x USB 3.0 (Type-B; upstream)
Audio
Audio Speakers	2 x 2W	2 x 3W
Features
Cool Features	Picture-By-Picture Picture-in-Picture Flicker-free technology HDCP (High-bandwidth Digital Content Protection)	Flicker-free technology GameAssist (Aim Stabilizer / Crosshair / Alignment / Dashboard / Black Equalizer / Timer / Counter / Auto-Update) Low Blue Light Smart OD OSD Sidekick KVM Switch 6-axis color control AMD FreeSync Premium Pro
Extra Features		Anti-theft stand lock slot - Kensington
Ergonomics
Case Width	25.93 in 65.9 cm 658.7 mm 2.16 ft	25.06 in 63.7 cm 636.5 mm 2.09 ft
Case Height	15.04 in 38.2 cm 381.9 mm 1.25 ft	14.66 in 37.2 cm 372.3 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	130 mm 13 cm 5.1181 in 0.4265 ft
Landscape or Portrait Pivot Support	Yes	No
Left Pivot	90 °
Right Pivot	90 °
Left or Right Swivel Support	Yes	No
Left Swivel	60 °
Right Swivel	60 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	35 °	20 °
Frequency and Interpolation
Vertical Digital Frequency	60 Hz	48 Hz - 144 Hz
Screen Interpolation Measurement Unit		NULL
Accessories
Extras	DisplayPort cable DVI-D cable	DisplayPort cable HDMI cable USB cable
Certificates and Standards
Licenses	ENERGY STAR ErP TCO Certified Displays 6.0	Eyesafe certified TÜV Rheinland Flicker-free certified TÜV Rheinland Low Blue Light certified
Usage and Storage Requirements
Safe Operating Temperature Level		0 °C - 40 °C 32 °F - 104 °F

Acer CB281HK

Gigabyte M28U