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Reviewed on Aug 08, 2018 , Simon Barbier, Yannick Khong

Dell U2718Q
MONITOR REVIEW

Usage Ratings - Version 1.0

Test Benches:

  • 1.0: Fall 2017
7.9
Mixed Usage
Score components:
Size : 27 "
Resolution : 3840x2160
Refresh Rate : 60 Hz
LCD Type
What it is: Type of LCD technology used by the monitor.
When it matters: Different technologies have different viewing angle properties.
:
IPS
Variable Refresh Rate
What it is: Feature that allows the monitor to synchronize its refresh rate with the input device's output and reduces stuttering and screen tearing.
When it matters: Almost every usage, but is most noticeable in gaming where constant fluctuation in framerate cause distracting artifacts.
:
No

The Dell Ultrasharp U2718Q is a very good 27-inch 4K IPS LCD monitor with HDR support, great ergonomics and a wide viewing angle. Its picture quality is decent, but although it supports HDR, there is not much advantage to using it. It has great low input lag for gaming. Dark room performance isn't the best as blacks appear gray and it has visible backlight bleed and poor black uniformity.

Test Results
Design 7.5
Picture Quality 7.4
Motion 7.0
Inputs 9.0
Pros
  • Wide viewing angles
  • Easy to adjust stand with great ergonomics
Cons
  • Poor HDR performance
  • Mediocre black uniformity and visible backlight bleed

Check Price

7.5

Design

Score components: Subjectively assigned
Dell U2718Q Design Picture
Curved : No
Curve radius : N/A
Weight (without stand) : 8.2lbs (3.7 kg)
Weight (with stand) : 13.8lbs (6.3kg)

The design of the Dell U2718Q is very similar to the rest of Dell's Ultrasharp range, like the U2717D and U2715H. The monitor has a simple, but professional design that will fit well in any household or office, but lacks some of the flashier design elements that are often found on modern monitors.

Stand
Dell U2718Q Stand picture
Width : 11.5" (29.2 cm)
Depth : 7.9" (20.0 cm)

The stand is very similar to the entire Dell lineup. It supports the monitor well, and despite the relatively large footprint, the base can still be used for other things as it is flat.

8.3 Ergonomics
What it is: How much the position of the screen can be adjusted to match the viewing preference of the user.
When it matters: All usages, but especially office and gaming use.
Score components:
  • 46% Height Adjustment
  • 18% Switch portrait/landscape
  • 18% Swivel Range
  • 18% Tilt Range
Dell U2718Q Ergonomics picture
Height Adjustment : 5.1" (13.0 cm)
Switch portrait/landscape : Yes
Swivel Range : -45° to 45°
Tilt Range : -20° to 5°

The Dell U2718Q can easily be adjusted to the perfect position thanks to the great ergonomic adjustments which are identical to the non-HDR model, the U2717D. The height and tilt can easily be adjusted, and it can be rotated to a portrait orientation if desired.

Back
Dell U2718Q Back picture
Wall Mount : VESA 100x100

The back of the monitor is clean smooth, very similar to all other Dell monitors. There is a single hole in the bottom of the stand for cable management.

Borders
Dell U2718Q Borders picture
Borders : 0.3" (0.7 cm)

The borders are slim and blend well with the screen. This is ideal for multi-monitor setups as there will be little gap between the monitors.

Thickness
Dell U2718Q Thickness picture
Thickness (with stand) : 5.8" (14.7 cm)
Thickness (without stand) : 1.8" (4.5 cm)

Because of the way the stand is designed, the Dell Ultrasharp U2718Q is much thicker when on the stand than when wall mounted. If space is an issue, a VESA mount would be a better choice as the monitor can't be placed flush with the wall.

7.5 Build Quality
What it is: How well built and sturdy the monitor is, and how good the materials used to build it are.
When it matters: All usages.
Score components: Subjectively assigned
Dell U2718Q Build Quality picture

Like most Dell monitors, the U2718Q has good build quality. The stand adjustments flow well and don't need to be forced. The monitor is mostly made of plastic, but the parts fit well and there are very few gaps.

The Dell Ultrasharp U2718Q has decent picture quality. It works best in a medium lit room, as blacks appear gray in a dark room and it isn't bright enough to overcome glare in a bright room and has only decent reflection handling. Although it supports HDR, there is not much advantage to using it as the HDR color gamut is limited, and it has disappointing HDR color volume. SDR color coverage is excellent, and it has excellent color volume, limited only by the contrast ratio.

6.5 Contrast
What it is: Brightness difference between white and black. This is the main component of picture quality.
When it matters: Always, but especially when watching dark scenes.
Score components:
Dell U2718Q Checkerboard Picture
Native Contrast
What it is: Ratio of the white brightness divided by the blacks measured on our checkerboard test pattern with a white target of 100 cd/m².
When it matters: Dark scenes in a dark room.
Good value: > 3,000
Noticeable difference: 500
:
1317 : 1
Contrast with local dimming
What it is: Ratio of the white brightness divided by the blacks measured on our checkerboard test pattern with local dimming turned on (maximum) with a white target of 100 cd/m².
When it matters: Dark scenes in a dark room.
Good value: > 3,000
Noticeable difference: 500
:
N/A

The Dell 2718Q has a decent native contrast ratio, very good for an IPS monitor but blacks still appear gray in a dark room. For better dark room performance a VA panel like the Samsung CHG70 is preferred.

0 Local Dimming
What it is: The lights behind the LCD layer adapt to the picture displayed, improving the contrast ratio.
When it matters: Dark scenes viewed in a dark room.
Score components: Subjectively assigned
Local Dimming
What it is: Whether it has a feature that controls the LEDs behind the LCD layer, to match the picture and darkens the dark portion of it.
When it matters: On LED TVs only. Dark scenes viewed in a dark room.
:
No
Backlight
What it is: Configuration of the lights of the backlight.
When it matters: Effectiveness of the local dimming.
Good value: Full-array/direct lighting is better for local dimming. As for the uniformity of the screen, it depends on the implementation. Some edge-lit monitors have more uniform blacks than some full-array monitors.
:
Direct

The Dell U2718Q does not support local dimming. The video is provided for reference only.

7.7 SDR Peak Brightness
What it is: How bright the screen can get. Measured with local dimming and with SDR content.
When it matters: Bright living rooms; bright objects; SDR content.
SDR Real Scene
What it is: The maximum luminosity the TV can obtain while playing a movie or while watching a TV show. Our Real Scene was selected to represent a more regular movie condition. All measurements are made with the TV set to be as bright as possible, but with a 6500k white. Measured with local dimming on, max backlight and with an SDR signal. Scene: here.
When it matters: When watching movies and TV shows in SDR.
:
304 cd/m²
SDR Peak 2% Window
What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 2% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright highlights, present on screen for a short time
:
334 cd/m²
SDR Peak 10% Window
What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 10% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright objects, present on screen for a short time
:
335 cd/m²
SDR Peak 25% Window
What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 25% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
335 cd/m²
SDR Peak 50% Window
What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 50% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
335 cd/m²
SDR Peak 100% Window
What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 100% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
335 cd/m²
SDR Sustained 2% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 2% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright highlights, persistent during a scene.
:
334 cd/m²
SDR Sustained 10% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 10% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright objects, persistent during a scene.
:
334 cd/m²
SDR Sustained 25% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 25% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
335 cd/m²
SDR Sustained 50% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 50% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
335 cd/m²
SDR Sustained 100% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 100% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
335 cd/m²
SDR ABL
What it is: The standard deviation of the SDR sustained brightness, after linearizing for noticeable differences in luminosity
When it matters: Content with large bright areas, such as for PC or video game use, and sports such as hockey
:
0.000

Good peak brightness levels with negligible variation depending on content. The monitor is bright enough for most rooms, but it can't overcome direct glare.

6.2 HDR Peak Brightness
What it is: How bright the screen can get. Measured with local dimming and with HDR content.
When it matters: HDR content
HDR Real Scene : 329 cd/m²
HDR Peak 2% Window : 266 cd/m²
HDR Peak 10% Window : 341 cd/m²
HDR Peak 25% Window : 346 cd/m²
HDR Peak 50% Window : 369 cd/m²
HDR Peak 100% Window : 383 cd/m²
HDR Sustained 2% Window : 194 cd/m²
HDR Sustained 10% Window : 211 cd/m²
HDR Sustained 25% Window : 223 cd/m²
HDR Sustained 50% Window : 230 cd/m²
HDR Sustained 100% Window : 239 cd/m²
HDR ABL : 0.013

Mediocre HDR peak brightness. Real scene performance is slightly brighter than in SDR and the U2718Q performs well in most rooms. The brightness varied greatly during our testing, as the monitor appeared to boost the brightness of certain windows but then drop off the brightness after some time (see here). The posted results represent the most consistent results we could achieve (see here).

HDR is only supported when connected via HDMI. DisplayPort is not supported for HDR.

7.1 Horizontal Viewing Angle
What it is: Color accuracy when viewed from the side.
Dell U2718Q Horizontal Color Shift Picture
Color Shift from Left
What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your left
Good value: > 50°
Noticeable difference: 10°
:
37 °
Color Shift from Right
What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right
Good value: > 50°
Noticeable difference: 10°
:
37 °
Dell U2718Q Horizontal Brightness Picture
Brightness from Left
What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your left.
Good value: > 50°
Noticeable difference: 10°
:
43 °
Brightness from Right
What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right.
Good value: > 50°
Noticeable difference: 10°
:
44 °
Dell U2718Q Horizontal Black Level Picture
Black Level from Left
What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right.
Good value: > 50°
Noticeable difference: 10°
:
75 °
Black Level from Right
What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right.
Good value: > 50°
Noticeable difference: 10°
:
75 °
Curve Radius : N/A

The Dell U2718Q has decent horizontal viewing angles. If you are sitting close to the monitor the edges will be a bit darker than the rest of the screen, but there is very little shift in contrast. Colors lose accuracy but this shouldn't be an issue.

8.3 Vertical Viewing Angle
What it is: Color accuracy when viewed from the top or bottom.
Dell U2718Q Vertical Color Shift Picture
Color Shift from Below
What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor from below.
Good value: > 50°
Noticeable difference: 10°
:
29 °
Color Shift from Above
What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor when standing up.
Good value: > 50°
Noticeable difference: 10°
:
29 °
Dell U2718Q Vertical Brightness Picture
Brightness from Below
What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor from below.
Good value: > 50°
Noticeable difference: 10°
:
37 °
Brightness from Above
What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor while standing up.
Good value: > 50°
Noticeable difference: 10°
:
36 °
Dell U2718Q Vertical Black Level Picture
Black Level from Below
What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor from below.
Good value: > 50°
Noticeable difference: 10°
:
75 °
Black Level from Above
What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor while standing up.
Good value: > 50°
Noticeable difference: 10°
:
75 °

Great vertical viewing angles, almost as good as the Dell U3417W. There is no shift in contrast, but colors and overall brightness drop off. This is a good monitor if you are planning on wall mounting it above eye level.

8.5 Gray Uniformity
What it is: Evenness of colors onscreen (not just gray).
When it matters: Solid colors. Sports, panning shots.
Score components:
Dell U2718Q 50% Uniformity Picture
50% Std. Dev.
What it is: Average squared difference of pixels when displaying a mid 50% gray.
When it matters: Solid colors. Sports, panning shots.
Good value: < 2.5%
Noticeable difference: 1%
:
3.479 %
50% DSE
What it is: Dirty Screen Effect. High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Solid colors. Sports, panning shots.
Good value: < 0.165%
Noticeable difference: 0.025%
:
0.116 %
Dell U2718Q 5% Uniformity Picture
5% Std. Dev.
What it is: Average squared difference of pixels when displaying a mid 5% gray.
When it matters: Dark scenes.
Good value: < 1.15%
Noticeable difference: 1%
:
0.378 %
5% DSE
What it is: Dirty Screen Effect. High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Dark scenes.
Good value: < 0.116%
:
0.034 %

Excellent gray uniformity, with very little dirty screen effect, but the edges of the screen are noticeably darker than the rest. Sports fans shouldn't notice any issues when streaming games online, and there won't be any darker areas when browsing websites with large white areas.

6.1 Black Uniformity
What it is: Evenness of blacks.
When it matters: Dark scenes viewed in a dark room.
Score components:
Dell U2718Q Native Black Uniformity Picture
Native Std. Dev.
What it is: Average of the squared difference of the blacks.
When it matters: Dark scenes viewed in a dark room.
Good value: <2%
Noticeable difference: 1%, but keep in mind that it varies a lot by unit, even of the same model; yours likely will not end up exactly like ours.
:
1.911 %
Std. Dev. w/ L.D.
What it is: Average of the squared difference of the blacks with Local Dimming enabled
When it matters: Dark scenes viewed in a dark room.
Good value: <2%
Noticeable difference: 1%, but keep in mind that it varies a lot by unit, even of the same model; yours likely will not end up exactly like ours.
:
N/A

Mediocre black uniformity, but better than most monitors we have tested. There is clouding across the entire screen, and the LED back lights bleed along the bottom edge, which can be distracting in a dark room.

7.3 Pre Calibration
What it is: Monitor's color accuracy before a full calibration. The measurements are taken with out of the box 'factory setting'.
When it matters: All video on an uncalibrated TV. This represents most people's use cases.
Score components:
Dell U2718Q Pre Calibration Picture Dell U2718Q Pre Gamma Curve Picture Dell U2718Q Pre Color Picture
Picture Mode
What it is: The picture mode that was used to do the pre-calibration reading. We usually go for the picture mode that gives us the more control over all the picture quality setting.
:
Standard
Luminance
What it is: The luminance at which the pre-calibration reading was done. This represents the luminance of the monitor when it is at the factory default settings.
:
284 cd/m²
Luminance Settings
What it is: The luminance settings, often named 'Brightness' on monitors, usually range from 0 to 100.
:
75
Contrast Setting
What it is: The monitor contrast setting, usually ranging from 0 to 100.
:
75
RGB controls
What it is: This is the value for each color (red, green, and blue) used in the monitor internal RGB cuts/gains controls. If the monitor does not have an internal RGB cuts/gains controls, then the color temperature setting will be used instead, and the color temperature that gives us the best result will be used.
:
N/A
Color Temperature
What it is: The color temperature is a measure of the color of light. A colder color temperature (7000K) will look bluer and a warmer color temperature (4000K) will look yellower/redder. 6500K is the standard color for PC monitors and also for the sRGB color standard.
When it matters: When you care about color reproduction and accuracy.
Good value: 6500K
Noticeable difference: 400K
:
6068 K
White Balance dE
What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all video.
Good value: < 3
Noticeable difference: 1
:
3.53
Color dE
What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
2.83
Gamma
What it is: Brightness of shades of gray.
When it matters: Shadows.
Good value: Between 2.1 and 2.3 (our target is 2.2)
Noticeable difference: 0.1
:
2.21

Out of the box, the Dell Ultrasharp U2718Q has decent color and white balance accuracy. Dell calibrates each U2718Q at the factory, but they target a color temperature of 6000K. The most accurate results out of the box are with the 'Standard' picture mode, but the 'Multimedia' and 'Custom Color' pictures modes are almost as accurate.

The color temperature is warmer than our target of 6500K and the white balance dE is too high. Gamma follows the target curve well, but darker scenes were over-brightened.

9.6 Post Calibration
What it is: Monitor's color accuracy after a full calibration with a spectrophotometer.
When it matters: All graphics and video content on a monitor that has been professionally calibrated.
Score components:
Dell U2718Q Post Calibration Picture Dell U2718Q Post Gamma Curve Picture Dell U2718Q Post Color Picture
Picture Mode
What it is: The picture mode that was used to do the calibration reading. We usually go for the picture mode that gives us the more control over all the picture quality setting.
:
Custom Color
Luminance
What it is: The luminance at which the calibration was executed. We aim for a luminance level of 100 cd/m².
:
101 cd/m²
Luminance Settings
What it is: The luminance settings, often named 'Brightness' on monitors, usually range from 0 to 100.
:
22
Contrast Setting
What it is: The monitor contrast setting, usually ranging from 0 to 100.
:
75
RGB controls
What it is: This is the value for each color (red, green, and blue) used in the monitor internal RGB cuts/gains controls. If the monitor does not have an internal RGB cuts/gains controls, then the color temperature setting will be used instead, and the color temperature that gives us the best result will be used.
:
91-98-100
Color Temperature
What it is: The color temperature is a measure of the color of light. A colder color temperature (7000K) will look bluer and a warmer color temperature (4000K) will look yellower/redder. 6500K is the standard color for PC monitors and also for the sRGB color standard.
When it matters: When you care about color reproduction and accuracy.
Good value: 6500K
Noticeable difference: 400K
:
6494 K
White Balance dE
What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all videos.
Good value: < 3
Noticeable difference: 1
:
0.56
Color dE
What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
0.56
Gamma
What it is: Brightness of shades of gray.
When it matters: Shadows.
Good value: Between 2.1 and 2.3 (our target is 2.2)
Noticeable difference: 0.1
:
2.19

After calibration the color and white balance accuracy is excellent. The most accurate picture mode is 'Custom Color'. The color temperature is almost perfect, and color and white dE are too low for most people to notice. The gamma curve follows our target input almost perfectly.

You can download our ICC profile calibration here.

8.7 SDR Color Gamut
What it is: The palette of colors the monitor can display
When it matters: General content consumption or production
Score components:
Dell U2718Q Color Gamut s.RGB Picture
s.RGB xy
What it is: Coverage of the s.RGB colorspace on CIE 1931 xy.
When it matters: Almost all content. Includes websites, standard windows environment and SDR movies
Good value: > 95%
Noticeable difference: 5%
:
97.3 %
Dell U2718Q Color Gamut ARGB Picture
Adobe RGB xy
What it is: Coverage of the Adobe RGB colorspace on CIE 1931 xy.
When it matters: Professional photography.
Good value: > 90%
Noticeable difference: 5%
:
75.8 %

s.RGB Picture Mode: Custom Color (calibrated)
Adobe RGB Picture Mode: Custom Color

Excellent coverage of the standard SDR s.RGB color space. Limited coverage of the wider Adobe RGB color space which may be disappointing to professional users for editing graphics or print media (see our recommendations for the best monitors for graphic design).

9.1 SDR Color Volume
What it is: How much of the SDR color spaces the monitor can reproduce
When it matters: General usage and SDR media creation
Score components:
Dell U2718Q s.RGB Color Volume ITP picture
s.RGB in ICtCp
What it is: How much of the s.RGB colorspace a monitor can display at different luminosity levels
When it matters: Most content, including web, SDR video games, and SDR media creation
:
98.2 %
Dell U2718Q Adobe RGB Color Volume ITP Picture
Adobe RGB in ICtCp
What it is: How much of the Adobe RGB colorspace a monitor can display at different luminosity levels, normalized to the monitor's peak brightness.
When it matters: Professional media creation
:
82.8 %

s.RGB Picture Mode: Custom Color
Adobe RGB Picture Mode: Custom Color

The Dell Ultrasharp U2718Q has excellent color volume in SDR. Better coverage of dark colors than the U2717D due to the deeper native contrast ratio. Adobe RGB coverage is limited by the poor color space coverage and is not as good as other HDR monitors we have tested, like the Samsung CHG70.

6.6 HDR Color Gamut
What it is: The monitor's ability to reproduce HDR color spaces
When it matters: HDR content consumption or media creation
Score components:
Wide Color Gamut
What it is: Whether the monitor can support wider color gamuts
When it matters: HDR content and media creation
:
No
Dell U2718Q Color Gamut DCI-P3 Picture
DCI P3 xy
What it is: Coverage of the DCI P3 colorspace on CIE 1931 xy
When it matters: When consuming or producing HDR content.
:
74.9 %
Dell U2718Q Color Gamut Rec.2020 Picture
Rec. 2020 xy
What it is: Coverage of the Rec.2020 colorspace on CIE 1931 xy.
When it matters: When consuming or producing HDR content.
Good value: > 90%
Noticeable difference: 5%
:
57.3 %

Decent HDR color gamut, but worse than the other HDR monitors we have reviewed, including the Samsung CHG70. Coverage of the wider Rec. 2020 color space is very limited and saturated colors in HDR are not well represented. The Dell Ultrasharp U2718Q does not support a wide color gamut.

HDR is only supported when connected via HDMI. DisplayPort is not supported for HDR.

5.2 HDR Color Volume
What it is: How much of the HDR color spaces a monitor can display at different luminosity levels.
When it matters: HDR content consumption and production. Includes streaming services, UHD Blu-rays and HDR games.
Score components:
Dell U2718Q P3 Color Volume ITP Picture
DCI-P3 in ICtCp
What it is: How much of the DCI-P3 colorspace a monitor can display at different luminosity levels, normalized to the monitor's peak brightness output.
When it matters: HDR content.
Good value: 80%
Noticeable difference: 5%
:
62.1 %
Dell U2718Q 2020 Color Volume ITP Picture
Rec. 2020 in ICtCp
What it is: How much of the Rec. 2020 colorspace a monitor can display at different luminosity levels, normalized to the monitor's peak brightness output.
When it matters: HDR content.
Good value: 80 %
Noticeable difference: 5 %
:
42.2 %

Disappointing HDR color volume. The Dell U2718Q is severely limited by the limited color gamut. It isn't very good at reproducing deep, dark colors.

HDR is only supported when connected via HDMI. DisplayPort is not supported for HDR.

10 Image Retention
What it is: How much a static image is retained on a monitor screen after a certain amount of time.
When it matters: When working or playing video games on your PC monitor.
Dell U2718Q Image Retention Picture
IR after 0 min recovery
What it is: Image retention measured right after the static image exposure, without recovery time.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %
IR after 2 min recovery
What it is: Image retention measured after a recovery time of 2 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect
Noticeable difference: 0.015%
:
0.00 %
IR after 4 min recovery
What it is: Image retention measured after a recovery time of 4 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %
IR after 6 min recovery
What it is: Image retention measured after a recovery time of 6 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %
IR after 8 min recovery
What it is: Image retention measured after a recovery time of 8 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %
IR after 10 min recovery
What it is: Image retention measured after a recovery time of 10 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %

The Dell Ultrasharp U2718Q has no temporary image retention, even immediately after our 10-minute test image there is no retention.

10 Gradient
What it is: How finely levels of color can be displayed.
When it matters: Details in shadows, sky and skin tones. Matters more for HDR content.
Score components: Subjectively assigned
Dell U2718Q Gradient Picture
Color Depth
What it is: Number of bits per pixel to represent a specific color. Note: we consider 8-bit with dithering to be equivalent to 10-bit, as long as the 10-bit gradient looks smooth.
When it matters: HDR content like HDR video games or HDR UHD movies. Won't matter for regular Blu-ray movies, SDR video game or desktop environment content displayed from a Windows PC. Those are limited to 8-bit color.
Good value: 10-bit.
Noticeable difference: 1 bit.
:
10 Bit

The Dell U2718Q has perfect gradient reproduction, better than any other monitor we have reviewed.

10 Color Bleed
What it is: How much the color from one area of the screen affects the color in another area of the screen.
When it matters: All usages, but especially media creation.
Score components:
Dell U2718Q Color bleed horizontal
Pixel row error
What it is: The amount of bleed that appears across the screen horizontally.
When it matters: General usage of a PC monitor, can appear when browsing the web or with media creation like graphics.
Good value: <0.2%
Noticeable difference: 0.1%
:
0.000 %
Dell U2718Q Color bleed vertical
Pixel column error
What it is: Amount of color bleeding that appears across the screen vertically.
When it matters: Most uses of a PC monitor. Can appear while browsing the web or when editing images or graphics.
Good value: <0.2%
Noticeable difference: 0.1%
:
0.000 %

The Dell U2718Q is free of color bleed. This is great for graphics artists that use large areas of uniform color.

7.0 Reflections
What it is: How much light is reflected by the TV.
When it matters: Bright rooms.
Score components: Subjectively assigned
Dell U2718Q Average room Dell U2718Q Average room off picture Dell U2718Q Bright room off picture

Decent reflection handling, but worse than most similar models that we have tested. Reflections aren't diffused as much as the U2717D and they may be distracting.

7.0

Motion

Score components:

Decent motion performance on the Dell U2718Q. The monitor has a fast pixel response time and there is little motion blur. The PWM backlight causes some visible flicker that may bother some people, although it is at a very high frequency. Unfortunately, there are very few options to improve motion handling, as the monitor is limited by a 60 Hz refresh rate and does not support black frame insertion. It does not support AMD's FreeSync or NVIDIA's G-Sync variable refresh rate technologies.

8.8 Motion Blur
What it is: The performance of the pixel response time. Poor response time causes trails to follow moving objects. Response time is one of a few sources of motion blur.
When it matters: When there's fast movement on screen, such as during video games and sports.
Score components:
Dell U2718Q Motion Blur Picture Dell U2718Q Response Time Chart
80% Response Time
What it is: How quickly pixels can reach 80% of a full transition from one color to another.
When it matters: When there's fast movement on screen, such as during video games and sports.
Good value: < 8 ms
Noticeable difference: 4 ms
:
5.1 ms
100% Response Time
What it is: How quickly pixels can fully transition from one color to another.
When it matters: When there's fast movement on screen, such as during video games and sports.
Good value: < 20 ms
Noticeable difference: 10 ms
:
11.7 ms
Best Overdrive Setting
What it is: If the monitor has adjustable pixel overdrive settings, which one produces the best response time with minimal overshoot.
When it matters: When adjusting the monitor's settings to get the least possible motion blur.
:
Normal

Response Time Normal
Response Time Fast

Excellent native response time, great for gaming or watching fast paced motion. There is very little motion trail behind fast moving objects. Most of the blur in the photo is due to 60 fps persistence.

The 'Normal' Response Time produced the best results. If you want a faster response time, you can set the response time to 'Fast', but this will introduce overdrive artifacts.

5.5 Image Flicker
What it is: Luminosity pattern when displaying images
When it matters: Nearly all the time during PC monitor use, but especially during fast movement such as video games
Dell U2718Q Backlight Picture
Flicker-free : No
PWM Dimming Frequency
What it is: Flickering pattern at different luminosities.
When it matters: For people sensitive to flickering.
Good value: N/A or high frequencies (> 300 Hz). Frequencies that are multiples of 60Hz are better.
:
650 Hz
Black Frame Insertion (BFI)
What it is: Option to turn screen black between frames
When it matters: Reduces eye tracking blur in motion
Good value: Yes
:
No
BFI Maximum Frequency
What it is: Highest possible frequency of flickering pattern
When it matters: Reduces eye-tracking blur in motion
Good value: Matches the native refresh rate
Noticeable difference: 20 Hz
:
N/A
BFI Minimum Frequency
What it is: Lowest possible frequency of flickering pattern
When it matters: Reduces eye-tracking blur in motion
Good value: 60 Hz
Noticeable difference: 20 Hz
:
N/A

The Dell U2718Q uses a dual PWM flicker to dim the backlight. There is a 10 kHz flicker that is always present, but this flicker is not visible at all. There is a secondary flicker at 650 Hz, but due to the secondary wave the backlight does not completely shut off and the flicker is not noticeable under most conditions. The monitor does not support black frame insertion.

6.7 Refresh Rate
What it is: How frequently the monitor can refresh and show new frames, and whether it can vary its refresh rate in real time using technologies like G-sync and FreeSync.
When it matters: Mostly for gaming, but does provide a little better motion during normal usage.
Native
What it is: The frequency at which the monitor is capable of displaying images every second
When it matters: General usage, but better results are most important for gaming
Good value: >100 Hz
Noticeable difference: 15 Hz
:
60 Hz
Factory Overclock
What it is: The frequency at which the monitor's can be boosted to using its internal menu.
When it matters: Gaming and other usages where high frame rate content is consumed.
Good value: >100
Noticeable difference: 15
:
N/A
Variable Refresh Rate
What it is: Feature that allows the monitor to synchronize its refresh rate with the input device's output and reduces stuttering and screen tearing.
When it matters: Almost every usage, but is most noticeable in gaming where constant fluctuation in framerate cause distracting artifacts.
:
No
VRR Maximum
What it is: The maximum frequency covered by the Variable Refresh Rate feature of the monitor.
When it matters: Any time the VRR feature is enabled.
Good value: Matches Refresh rate
Noticeable difference: 10 Hz
:
N/A
VRR Minimum
What it is: The lowest frequency covered by the monitor's Variable Refresh Rate feature.
When it matters: When using the VRR feature of the monitor at lower frame rates.
Good value: 30 Hz
:
N/A
VRR Maximum With OC
What it is: The maximum frequency covered by the Variable Refresh Rate feature when the monitor's overclocking feature is used.
When it matters: When both the overclocking and VRR features are used.
Good value: Matching the overclocked refresh rate.
Noticeable difference: 10 hz
:
N/A
VRR Supported Connectors : N/A

The Dell Ultrasharp U2718Q has a decent native refresh rate of 60Hz that is common for 4k monitors. Most people won't have any issue with this, but gamers will be disappointed by the low refresh rate and lack of gaming-oriented features like Freesync or G-sync.

9.0

Inputs

Score components:

The Dell U2718Q has a large 4k 27" panel, which is great for almost any usage. The monitor always upscales to its native resolution of 4k, and always has excellent low input lag. It does not support daisy chaining multiple monitors with DisplayPort, but can be used as a USB hub and has 2 USB BC1.2 fast charging ports.

9.0 Input Lag
What it is: Delay between input and onscreen reaction.
When it matters: General usage of the mouse and gaming.
Native Resolution
What it is: Lowest input lag possible at the center of the screen, when the monitor is displaying its native resolution at its native refresh rate.
When it matters: General usage and while playing video games.
Good value: < 15 ms
Noticeable difference: 5 ms
:
8.9 ms
Non-Native Resolution
What it is:

Lowest input lag possible at the center of the screen, when the monitor is displaying an alternative resolution at its native refresh rate. The non-native resolution tested depends on the native resolution of the monitor, following this pattern unless otherwise specified in the Input Lag text:

Native Resolution Non-Native Resolution Tested
4k UHD QHD
QHD FHD
FHD 1600x900
3440x1440 2560x1080
2560x1080 1920x1080
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
8.9 ms
Native Resolution @ 60 Hz
What it is: Lowest input lag possible at the center of the screen, when the monitor is displaying its native resolution at a refresh rate of 60 Hz.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
8.9 ms
Variable Refresh Rate
What it is: Lowest input lag possible at the center of the screen, when the monitor is using its Variable Refresh Rate feature at its native resolution.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
N/A
HDR
What it is: Lowest input lag possible at the center of the screen, when the monitor is displaying an HDR signal at its native resolution and refresh rate.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
9.0 ms
Black Frame Insertion (BFI)
What it is: Lowest input lag possible at the center of the screen, when BFI is enabled and the monitor is displaying a signal at the highest supported BFI refresh rate.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
N/A

The HDR input lag was tested over HDMI, whereas the other results were measured over DisplayPort. This should not have any impact on the results.

The Dell Ultrasharp U2718Q is always upscaling to native 4k resolution. Excellent low input lag, even for the most demanding gamers.

HDR is only supported when connected via HDMI. DisplayPort is not supported for HDR.

9.1 Resolution and Size
What it is: The number of pixels the monitor can display, and the surface area of its screen.
When it matters: All usages, but especially for office and media editing.
Score components:
Native Resolution : 4K UHD, 3840 x 2160
Aspect Ratio : 16:9
Megapixels : 8.3 MP
Pixel Density : 164 PPI
Screen Diagonal : 27.0 inches
Screen Area : 310 sq inches

This monitor has a very sharp 4k UHD resolution, which is great for almost any usage.

Inputs
Total Inputs
DisplayPort : 1 (DP 1.2)
Mini DisplayPort : 1 (DP 1.2)
HDMI : 1 (HDMI 2.0)
DVI : No
VGA : No
DisplayPort Out : No
USB : 4 (USB 3.0)
USB C : No
Analog Audio Out 3.5mm : 1
Microphone In 3.5mm : No
Digital Optical Audio Out : No
Analog Audio Out RCA : No

Two of the USB ports support USB 1.2 BC fast charging, and there is an option to power the USB ports even when the monitor is in standby. HDR is only supported when connected via HDMI. DisplayPort is not supported for HDR.

Features

The Dell U2718Q has a decent set of additional features. The display uses Dell's well organized on-screen display to control most settings, and has some extra features like USB always on. It doesn't support DisplayPort daisy chaining, and unlike the majority of monitors out there, it doesn't have built-in speakers. Thankfully it does have a 3.5mm speaker out port, so you can connect a single set of speakers that will be used by each device connected to the monitor.

Additional Features
What it is: Additional features found on the monitor
Score components:
Speakers
What it is: Whether or not the monitor features standalone speakers.
When it matters: When using your computer without headphones or a dedicated pair of speakers.
:
No
HDR10 : Yes

The Dell Ultrasharp U2718Q can be used as a USB hub. The USB ports can be left powered when the monitor is off, and two of the ports support BC1.2 fast charging, with a maximum capacity of 2A.

HDR is only supported when connected via HDMI. DisplayPort is not supported for HDR.

On-Screen Display (OSD)
Controls
Dell U2718Q Controls picture

The monitor has the same standard four-button control scheme as most Dell monitors. The buttons have good tactile feedback and the menus are generally easy to navigate, but the interface is not as intuitive as the rocker joystick found on many LG and Samsung monitors.

In The Box
Dell U2718Q In The Box picture

  • Manual and drivers
  • USB 3.0 Cable
  • DisplayPort to mini-DisplayPort cable
  • Power cable

Differences between Sizes and Variants

We've tested the 27" U2718Q The monitor is also available in a 25" size (Dell U2518D).

If someone comes across a different type of panel or if their Dell U2718Q doesn't correspond to our review, let us know and we will update the review. Note that some tests such as the gray uniformity may vary between individual units.

Size Model
25" U2518D
27" U2718Q

The U2718Q we reviewed was manufactured in May 2018 (Revision A03).

Compared to other Monitors

Dell U2718Q Group Shot Picture
Left: Samsung CHG70. Middle: Dell U2718Q Right: Dell U2717D
Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The Dell U2718Q is a very good IPS monitor, and one of the best work monitors we've tested, but there are better alternatives out there, especially if you want decent HDR performance. See our recommendations for the best monitors.

LG 27UK650

The Dell U2718Q and the LG 27UK650 both have very similar performance. They are both very good monitors for gaming. The Dell U2718Q has slightly better ergonomics which makes it easier to place the monitor comfortably while gaming, whereas the LG 27UK650 has marginally better refresh rate since it includes the Freesync implementation of the variable refresh rate to eliminate tearing and is also flicker-free. 

Dell U2717D

The Dell Ultrasharp U2718Q is better than the Dell Ultrasharp U2717D. The Dell U2718Q has a higher native contrast ratio, and supports HDR, as well as having a higher resolution screen that allows you to see more details or get more done. The U2718Q has much lower input lag regardless of input resolution, great for gamers. The Dell U2717D has no visible flicker and better reflection handling.

Dell U2715H

The Dell U2718Q is better than the Dell U2715H. The Dell U2718Q supports HDR and performs decently in that mode. It also has a 4k resolution so you can display more  details of your work on the screen. Finally, the Dell U2718Q has a better black uniformity, which is great in dark scenes, and perfect gradient performance with no visible banding.

LG 27UD68P-B

The Dell Ultrasharp U2718Q is better than the LG 27UD68-P. The Dell U2718Q has better black uniformity and does not suffer from temporary image retention. The U2718Q also supports HDR, although this doesn't add much due to the poor color volume and insufficient peak brightness. The LG 27UD68-P is flicker-free and has better motion handling overall thanks to AMD FreeSync support.

ASUS ROG PG279Q

The ASUS ROG Swift PG279Q is a bit better than the Dell Ultrasharp U2718Q. The PG279Q has much better motion handling. The high refresh rate delivers a nearly perfect response time with almost no motion blur, as well as being flicker free. The ROG PG279Q also has an optional black frame insertion feature that can help clear up motion, and supports NVIDIA's G-Sync technology. The Dell U2718Q has a higher resolution 4k screen, and supports HDR, even though HDR doesn't add much due to the U2718's limited color volume and low peak brightness.

LG 32UD99

The LG 32UD99 is slightly better than the Dell U2718Q. The LG has better HDR support, with a better color gamut and much better HDR color volume. The LG handles motion better, with a flicker-free backlight as well as FreeSync VRR support. The Dell on the other hand has a better stand that can easily be adjusted to an optimal viewing position.

Acer Predator X27

The Acer Predator X27 is slightly better than the Dell U2718Q. The X27 is brighter and offers a much better HDR experience, as it is brighter and can produce brighter highlights, as well as the added full array local dimming feature. The X27 has a much wider color gamut, suitable for professional use for print and marketing. The Dell U2718Q has more ergonomic options and is easier to adjust to an optimal viewing position.

Samsung CHG70

The Dell Ultrasharp U2718Q is better than the Samsung CHG70, unless your main usage is for gaming or for dark room viewing. The Dell U2718Q has wider viewing angles and a higher native resolution, so you can see every detail. The CHG70 has a higher native contrast ratio, so it performs better in a dark room. The Samsung also has much better motion handling thanks to the much higher 144 Hz refresh rate and AMD FreeSync support.

+ Show more

Conclusion
SEE PRICE
Newegg.com

7.9Mixed Usage
Score components:
Very good monitor for mixed usage. It has an easy to adjust stand and wide viewing angles, and can easily be adjusted for the ideal viewing position. The large viewing area and high-resolution screen make it easier to multitask and see the smallest details in movies and games. While it supports HDR, there is little benefit to using it.
Very good monitor for office use. The large screen area and 4k display make it an excellent monitor for multitasking. It has wide horizontal and vertical viewing angles. The stand can be easily adjusted for optimal comfort. It is best used in a brighter office, as the dark room performance isn't great due to backlight bleed and the limited native contrast.
Very good monitor for gaming. Native input lag is extremely low, great for even the most demanding gamers. The large, high resolution screen allows you to see even the finest details. There is very little motion blur thanks to the high refresh rate, but there are few options to improve it further due to the limited 60 Hz refresh rate.
Very good monitor for multimedia usage. The large viewing area and high resolution screen allow you to see every detail. Input lag is extremely low and there is very little motion blur. It is not well suited for watching movies in a dark room as there is visible backlight bleed and poor blacks appear dark gray. It has great viewing angles, perfect for watching with multiple people.
Very good monitor for media creation. The large screen and high native resolution makes it easier to see more at once. Colors are accurate and vivid, but unfortunately, coverage of the professional Adobe RGB color space is more limited.
Decent monitor for HDR Gaming. Input lag is extremely low and there is very little motion blur. Some gamers will be disappointed by the limited 60Hz refresh rate. Unfortunately there is not much advantage to using the Dell Ultrasharp U2718Q for HDR gaming due to the lack of a wide color gamut and low peak brightness.

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