Comparison between:
- 28" Acer XV280K B
- 28" Acer XV282K KV
- 28" AOC U28G2U
- 27" Dell S2721QS

Brand, series, model

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

Acer XV280K BAcer XV282K KVAOC U28G2UDell S2721QS
SeriesNitro XV0Nitro XV2--
Acer XV280K BAcer XV282K KVAOC U28G2UDell S2721QS
Model aliasNitro XV280K
XV280KB
Nitro XV282K KV--

Display

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

Size class28 in28 in28 in27 in
Diagonal708.538 mm
70.8538 cm
27.8952 in
2.3246 ft
708.538 mm
70.8538 cm
27.8952 in
2.3246 ft
708.538 mm
70.8538 cm
27.8952 in
2.3246 ft
684.7 mm
68.47 cm
26.9567 in
2.2464 ft
Width620.928 mm
62.0928 cm
24.446 in
2.0372 ft
620.928 mm
62.0928 cm
24.446 in
2.0372 ft
620.928 mm
62.0928 cm
24.446 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 typeIPSIPSIPSIPS
Panel bit depth10 bits (8 bits + FRC)10 bits (8 bits + FRC)10 bits (8 bits + FRC)10 bits
FRCYesYesYes-
Colors1073741824 colors
30 bits
1073741824 colors
30 bits
1073741824 colors
30 bits
1073741824 colors
30 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
3840 x 2160 pixels
Ultra HD (UHD) / 4K / 2160p
Pixel pitch0.161 mm
0.0161 cm
0.0063 in
0.0005 ft
0.161 mm
0.0161 cm
0.0063 in
0.0005 ft
0.161 mm
0.0161 cm
0.0063 in
0.0005 ft
0.155 mm
0.0155 cm
0.0061 in
0.0005 ft
Pixel density157 ppi
61 ppcm
157 ppi
61 ppcm
157 ppi
61 ppcm
163 ppi
64 ppcm
Display area89.67 %89.67 %90.36 %89.83 %
BacklightW-LEDW-LEDW-LEDW-LED
sRGB100 %-119 %99 %
NTSC (1953)--107 %-
DCI P390 %98 %97 %-
Brightness300 cd/m²550 cd/m²300 cd/m²350 cd/m²
Peak brightness400 cd/m²600 cd/m²--
Static contrast1000 : 11000 : 11000 : 11300 : 1
Dynamic contrast100000000 : 1100000000 : 180000000 : 1-
HDRDisplayHDR 400
HDR10
DisplayHDR 600HDR10-
Horizontal viewing angle178 °178 °178 °178 °
Vertical viewing angle178 °178 °178 °178 °
Minimum response time4 ms
0.0040 s
-4 ms
0.0040 s
4 ms
0.0040 s
Average response time---8 ms
0.0080 s
CoatingAnti-glare/MatteAnti-glare/Matte-Anti-glare/Matte (3H)
Response time - 1 ms (VRB - Virtual Response Boost)Response time - 1 ms (VRB - Virtual Response Boost)--

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 - 85 kHz-30 kHz - 140 kHz130 kHz - 137 kHz
Vertical frequency (digital)56 Hz - 76 Hz48 Hz - 144 Hz23 Hz - 75 Hz40 Hz - 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)--1.5 A-
Power consumption (off)0.35 W0.35 W-0.3 W
Power consumption (sleep)0.5 W0.5 W0.5 W0.3 W
Power consumption (eco)---24.3 W
Power consumption (average)37 W32 W45 W28 W
Power consumption (maximum)---52 W
Energy efficiency classB---

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.

Width637 mm
63.7 cm
25.0787 in
2.0899 ft
637 mm
63.7 cm
25.0787 in
2.0899 ft
636.4 mm
63.64 cm
25.0551 in
2.0879 ft
611.6 mm
61.16 cm
24.0787 in
2.0066 ft
Height371 mm
37.1 cm
14.6063 in
1.2172 ft
371 mm
37.1 cm
14.6063 in
1.2172 ft
368.5 mm
36.85 cm
14.5079 in
1.209 ft
364.6 mm
36.46 cm
14.3543 in
1.1962 ft
Depth68 mm
6.8 cm
2.6772 in
0.2231 ft
68 mm
6.8 cm
2.6772 in
0.2231 ft
49.3 mm
4.93 cm
1.9409 in
0.1617 ft
55.4 mm
5.54 cm
2.1811 in
0.1818 ft
Weight5.19 kg
11.44 lbs
5.19 kg
11.44 lbs
4.77 kg
10.52 lbs
4.7 kg
10.36 lbs
Width with stand637 mm
63.7 cm
25.0787 in
2.0899 ft
637 mm
63.7 cm
25.0787 in
2.0899 ft
636.4 mm
63.64 cm
25.0551 in
2.0879 ft
611.6 mm
61.16 cm
24.0787 in
2.0066 ft
Height with stand437 mm
43.7 cm
17.2047 in
1.4337 ft
437 mm
43.7 cm
17.2047 in
1.4337 ft
401.9 mm
40.19 cm
15.8228 in
1.3186 ft
400.1 mm
40.01 cm
15.752 in
1.3127 ft
Depth with stand269 mm
26.9 cm
10.5906 in
0.8825 ft
269 mm
26.9 cm
10.5906 in
0.8825 ft
227.4 mm
22.74 cm
8.9528 in
0.7461 ft
174.7 mm
17.47 cm
6.878 in
0.5732 ft
Weight with stand7.25 kg
15.98 lbs
7.75 kg
17.09 lbs
6.18 kg
13.62 lbs
6.4 kg
14.11 lbs
ColorsBlackBlackBlackSilver

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 range180 mm
18 cm
7.0866 in
0.5906 ft
180 mm
18 cm
7.0866 in
0.5906 ft
130 mm
13 cm
5.1181 in
0.4265 ft
110 mm
11 cm
4.3307 in
0.3609 ft
Landscape/portrait pivotYesYesYesYes
Left pivot90 °90 °0 °90 °
Right pivot90 °90 °90 °90 °
Left/right swivelYesYesYesYes
Left swivel180 °180 °30 °30 °
Right swivel180 °180 °30 °30 °
Forward/backward tiltYesYesYesYes
Forward tilt5 °5 °5 °5 °
Backward tilt35 °35 °23 °21 °
---Stand width - 257 mm
Stand depth - 174.7 mm

System on Chip (SoC)

Information about the central processor, graphic processor and the memory of the model.

Storage--8 GB-

Audio

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

Speakers2 x 2 W2 x 2 W-2 x 3 W

Camera

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

CameraNoNoNoNo

Connectivity

Available connectivity ports, slots and interfaces.

Connectivity2 x HDMI 2.0
1 x DisplayPort 1.2
1 x 3.5 mm Audio Out
2 x HDMI 2.1
1 x DisplayPort 1.4
1 x 3.5 mm Audio Out
1 x USB 3.2 (Type-B; Gen 1; upstream)
4 x USB 3.2 (Type-A; Gen 1; downstream)
2 x HDMI 2.0
1 x DisplayPort 1.2
1 x 3.5 mm Audio Out
2 x HDMI 2.0
1 x DisplayPort 1.2
1 x 3.5 mm Audio Out
HDCP (High-bandwidth Digital Content Protection) 2.2HDCP (High-bandwidth Digital Content Protection) 2.2High-bandwidth Digital Content Protection (HDCP)High-bandwidth Digital Content Protection (HDCP) 1.4

Features

Some additional functional features of the model.

FeaturesAdaptive Contrast Management (ACM)
AMD FreeSync technology
Blue Light Filter
Black Boost
ComfyView
Flicker-free technology
Zero Frame Design
AMD FreeSync technology
Blue Light Filter
Black Boost
ComfyView
DSC 2.0
Flicker-free technology
GameView
Zero Frame Design
Clear Vision
DDC2B (DDC/CI compatible)
Dynamic Colour Boost (DCB) technology
Dynamic Contrast Ratio (DCR) technology
Flicker-free technology
HDR Mode
Low Blue Light
Picture-by-Picture
Picture-in-Picture
3-sided bezeless design
AMD FreeSync technology
Flicker-free technology
Low Blue Light

Certificates, standards and licenses

Licenses from regulatory agencies, standards, certificates.

Certificates, standards and licensesRoHS
PSE
MPRⅡ
ISO9241-307
VCCI-B
FCC
CE
CCC
-CCC
CE
CECP
CEL
CH RoHS
cTUVus
ISO9241-307
TÜV Low Blue Light
Win10
ENERGY STAR 8.0
EPEAT
RoHS
TCO Certified
TUV Flicker Free
TUV Low Blue Light

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 temperature0 °C - 40 °C
32 °F - 104 °F
0 °C - 40 °C
32 °F - 104 °F
-0 °C - 40 °C
32 °F - 104 °F
Operating humidity20 % - 80 %20 % - 80 %-10 % - 80 %
Operating altitude---5000 m
16404.2 ft
Storage temperature----20 °C - 60 °C
-4 °F - 140 °F
Storage humidity---5 % - 90 %
Storage altitude---12192 m
40000 ft

Accessories

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

AccessoriesHDMI cableHDMI cableHDMI cable
USB Type-B cable
HDMI cable

Additional features

Information about other features.

Additional featuresAnti-theft stand lock slot - KensingtonAnti-theft stand lock slot - KensingtonAnti-theft stand lock slot - KensingtonAnti-theft stand lock slot - Kensington
 Acer XV280K BAcer XV282K KVAOC U28G2UDell S2721QS