Comparison between:
- 28" Samsung U28E850R
- 28" Acer CB281HK
- 28" Acer B286HK
- 27" Dell UltraSharp U2719DX

Brand, series, model

Information about the brand, series, model and model aliases.

Samsung U28E850RAcer CB281HKAcer B286HKDell UltraSharp U2719DX
Series---UltraSharp
Samsung U28E850RAcer CB281HKAcer B286HKDell UltraSharp U2719DX
Model aliasLU28E85KRSCB281HKymjdpprzB286HKymjdpprz-
Model year2015201520142018

Display

Information about the main characteristics of the display - panel, backlight, resolution, refresh rate, etc.

Size class28 in28 in28 in27 in
Diagonal711.2 mm
71.12 cm
28 in
2.3333 ft
711.2 mm
71.12 cm
28 in
2.3333 ft
711.2 mm
71.12 cm
28 in
2.3333 ft
685.8 mm
68.58 cm
27 in
2.25 ft
Width620.928 mm
62.0928 cm
24.446 in
2.0372 ft
620.93 mm
62.093 cm
24.4461 in
2.0372 ft
620.93 mm
62.093 cm
24.4461 in
2.0372 ft
596.736 mm
59.6736 cm
23.4935 in
1.9578 ft
Height341.28 mm
34.128 cm
13.4362 in
1.1197 ft
341.28 mm
34.128 cm
13.4362 in
1.1197 ft
341.28 mm
34.128 cm
13.4362 in
1.1197 ft
335.664 mm
33.5664 cm
13.2151 in
1.1013 ft
Panel manufacturerInnolux-Innolux-
Panel modelM280DGJ-L30---
Panel typeTNTNTNIPS
Panel bit depth10 bits (8 bits + FRC)10 bits (8 bits + FRC)10 bits (8 bits + FRC)8 bits
FRCYesYesYes-
Colors1073741824 colors
30 bits
1073741824 colors
30 bits
1073741824 colors
30 bits
16777216 colors
24 bits
Aspect ratio1.778:1
16:9
1.778:1
16:9
1.778:1
16:9
1.778:1
16:9
Resolution3840 x 2160 pixels
Ultra HD (UHD) / 4K / 2160p
3840 x 2160 pixels
Ultra HD (UHD) / 4K / 2160p
3840 x 2160 pixels
Ultra HD (UHD) / 4K / 2160p
2560 x 1440 pixels
Quad HD (QHD) / 1440p
Pixel pitch0.16 mm
0.016 cm
0.0063 in
0.0005 ft
0.162 mm
0.0162 cm
0.0064 in
0.0005 ft
0.162 mm
0.0162 cm
0.0064 in
0.0005 ft
0.233 mm
0.0233 cm
0.0092 in
0.0008 ft
Pixel density157 ppi
61 ppcm
157 ppi
61 ppcm
157 ppi
61 ppcm
109 ppi
42 ppcm
Display area83.38 %84.24 %84.24 %92.16 %
BacklightW-LEDW-LEDW-LEDW-LED
sRGB-100 %-99 %
NTSC (1953)72 %-72 %-
DCI P3---85 %
Brightness370 cd/m²300 cd/m²300 cd/m²350 cd/m²
Static contrast1000 : 11000 : 11000 : 11000 : 1
Dynamic contrast-100000000 : 1100000000 : 1-
Horizontal viewing angle170 °170 °170 °178 °
Vertical viewing angle160 °160 °160 °178 °
Minimum response time1 ms
0.0010 s
1 ms
0.0010 s
1 ms
0.0010 s
5 ms
0.0050 s
Average response time---8 ms
0.0080 s
Input lag--11 ms
0.0110 s
-
Coating-Anti-glare/Matte (3H)Anti-glare/Matte (3H)Anti-glare/Matte (3H)

3D

3D displays use various technologies to achieve a 3D effect. Each of these technologies has its own advantages and drawbacks.

3DNoNoNoNo

Frequencies

Information about the horizontal and vertical refresh rates/frequencies.

Horizontal frequency (digital)30 kHz - 135 kHz--30 kHz - 90 kHz
Vertical frequency (digital)24 Hz - 75 Hz60 Hz60 Hz56 Hz - 76 Hz
DisplayPort - 30 kHz - 135 kHz; 56 Hz - 75 Hz
HDMI 1 - 30 kHz - 90 kHz; 24 Hz - 75 Hz
HDMI 2 - 30 kHz - 135 kHz; 24 Hz - 75 Hz
DisplayPort - 3840 x 2160 @ 60 Hz
HDMI 1 - 3840 x 2160 @ 30 Hz
HDMI 2 - 3840 x 2160 @ 60 Hz
---

Power supply and consumption

Information about the power supply and consumption, energy efficiency class, etc.

110V100 V - 120 V100 V - 120 V100 V - 120 V100 V - 120 V
220V220 V - 240 V220 V - 240 V220 V - 240 V220 V - 240 V
Alternating current frequency50 Hz - 60 Hz50 Hz - 60 Hz50 Hz - 60 Hz50 Hz - 60 Hz
Electric current (A)---1.6 A
Power consumption (off)0.3 W0.4 W0.4 W0.3 W
Power consumption (sleep)0.3 W0.5 W0.5 W0.5 W
Power consumption (average)-41.5 W39 W30 W
Power consumption (maximum)39 W60 W-74 W
Power consumption (annual)87 kWh---
Energy efficiency classBC--

Dimensions, weight and color

Information about the dimensions and the weight of the specific model with and without stand as well as the colors, in which it is offered to the market.

Width661 mm
66.1 cm
26.0236 in
2.1686 ft
658.7 mm
65.87 cm
25.9331 in
2.1611 ft
658.7 mm
65.87 cm
25.9331 in
2.1611 ft
612.2 mm
61.22 cm
24.1024 in
2.0085 ft
Height384.5 mm
38.45 cm
15.1378 in
1.2615 ft
381.9 mm
38.19 cm
15.0354 in
1.253 ft
381.9 mm
38.19 cm
15.0354 in
1.253 ft
355 mm
35.5 cm
13.9764 in
1.1647 ft
Depth60.7 mm
6.07 cm
2.3898 in
0.1991 ft
64.5 mm
6.45 cm
2.5394 in
0.2116 ft
64.5 mm
6.45 cm
2.5394 in
0.2116 ft
39 mm
3.9 cm
1.5354 in
0.128 ft
Weight4.94 kg
10.89 lbs
--3.92 kg
8.64 lbs
Width with stand661 mm
66.1 cm
26.0236 in
2.1686 ft
658.7 mm
65.87 cm
25.9331 in
2.1611 ft
658.7 mm
65.87 cm
25.9331 in
2.1611 ft
612.2 mm
61.22 cm
24.1024 in
2.0085 ft
Height with stand421.5 mm
42.15 cm
16.5945 in
1.3829 ft
401.5 mm
40.15 cm
15.8071 in
1.3173 ft
408.5 mm
40.85 cm
16.0827 in
1.3402 ft
390.2 mm
39.02 cm
15.3622 in
1.2802 ft
Depth with stand260.6 mm
26.06 cm
10.2598 in
0.855 ft
236.5 mm
23.65 cm
9.311 in
0.7759 ft
247.2 mm
24.72 cm
9.7323 in
0.811 ft
180 mm
18 cm
7.0866 in
0.5906 ft
Weight with stand7.43 kg
16.38 lbs
8 kg
17.64 lbs
8.2 kg
18.08 lbs
5.96 kg
13.14 lbs
Box width738 mm
73.8 cm
29.0551 in
2.4213 ft
-735 mm
73.5 cm
28.937 in
2.4114 ft
-
Box height503 mm
50.3 cm
19.8031 in
1.6503 ft
-520 mm
52 cm
20.4724 in
1.706 ft
-
Box depth327 mm
32.7 cm
12.874 in
1.0728 ft
-208 mm
20.8 cm
8.189 in
0.6824 ft
-
Box weight10.65 kg
23.48 lbs
-11 kg
24.25 lbs
-
ColorsBlackBlackBlackBlack
Silver

Ergonomics

Information about the ergonomic functions - height adjustment, swivel angles, tilt angles, etc.

VESA mountYesYesYesYes
VESA interface100 x 100 mm100 x 100 mm100 x 100 mm100 x 100 mm
Removable standYesYesYesYes
Height adjustmentYesYesYesYes
Height adjustment range130 mm
13 cm
5.1181 in
0.4265 ft
150 mm
15 cm
5.9055 in
0.4921 ft
150 mm
15 cm
5.9055 in
0.4921 ft
130 mm
13 cm
5.1181 in
0.4265 ft
Landscape/portrait pivotYesYesYesYes
Left pivot0 °90 °90 °90 °
Right pivot90 °90 °90 °90 °
Left/right swivelYesYesYesYes
Left swivel25 °60 °60 °40 °
Right swivel25 °60 °60 °40 °
Forward/backward tiltYesYesYesYes
Forward tilt5 °5 °5 °5 °
Backward tilt22 °35 °35 °21 °

Audio

Information about the audio system - number and power of the built-in speakers, supported audio technologies.

Speakers-2 x 2 W2 x 2 W-

Camera

Many contemporary desktop monitors and smart TV sets have built-in cameras.

CameraNoNoNoNo

Connectivity

Available connectivity ports, slots and interfaces.

Connectivity1 x USB 3.0 (upstream)
4 x USB 3.0 (downstream)
1 x HDMI 1.4
1 x HDMI 2.0
1 x DisplayPort 1.2 (Input mini)
1 x DisplayPort 1.2
1 x 3.5 mm Audio Out
1 x HDMI 2.0 (MHL)
1 x DisplayPort 1.2
1 x DVI-D Dual Link
1 x 3.5 mm Audio Out
1 x USB 3.0 (upstream)
4 x USB 3.0 (downstream)
1 x HDMI 1.4 (MHL)
1 x DisplayPort 1.2 (Input mini)
1 x DisplayPort 1.2
1 x DVI-D Dual Link
1 x 3.5 mm Audio Out
1 x USB 3.0 (upstream)
2 x USB 3.0 (downstream)
2 x USB 3.0 (charger - 5V/2.0A)
1 x HDMI 1.4
1 x DisplayPort (Output MST)
1 x DisplayPort 1.4
1 x 3.5 mm Audio Out
-High-bandwidth Digital Content Protection (HDCP)High-bandwidth Digital Content Protection (HDCP)High-bandwidth Digital Content Protection (HDCP) 2.2

Features

Some additional functional features of the model.

FeaturesAMD FreeSync technology
Eco Saving Plus
Eye Saver Mode
Flicker-free technology
Picture-by-Picture
Picture-in-Picture
Samsung MagicBright
USB Super Charging
Flicker-free technology
Picture-By-Picture
Picture-in-Picture
Flicker-free technology
Picture-By-Picture
Picture-in-Picture
DDC/CI
Flicker-free technology

Certificates, standards and licenses

Licenses from regulatory agencies, standards, certificates.

Certificates, standards and licensesCCC
cTick
ENERGY STAR
Epeat Gold/Silver (Market dependent)
FCC class B
TCO Certified Displays 6.0
TÜV/GS
VCCI
ENERGY STAR
ErP
TCO Certified Displays 6.0
ENERGY STAR
ErP
TCO Certified Displays 6.0
CECP
ENERGY STAR
Epeat Gold
RoHS compliant
TCO Certified Displays

Operating and storage conditions

There are certain requirements for the environmental conditions, in which the display should be used and stored in order to function properly.

Operating temperature10 °C - 40 °C
50 °F - 104 °F
--0 °C - 40 °C
32 °F - 104 °F
Operating humidity10 % - 80 %--10 % - 80 %
Operating altitude---5000 m
16404.2 ft
Storage temperature-20 °C - 45 °C
-4 °F - 113 °F
---20 °C - 60 °C
-4 °F - 140 °F
Storage humidity5 % - 95 %--5 % - 90 %
Storage altitude---12192 m
40000 ft

Accessories

Often the packaging of desktop monitors and smart TV sets includes accessories for them.

AccessoriesDisplayPort cable - mini-DP to DP
HDMI cable
USB 3.0 upstream cable
DisplayPort cable
DVI-D cable
DisplayPort cable
DVI-D cable
USB 3.0 upstream cable
HDMI cable
USB 3.0 upstream cable

Additional features

Information about other features.

Additional features---Security lock slot
 Samsung U28E850RAcer CB281HKAcer B286HKDell UltraSharp U2719DX