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Reviewed on Mar 22, 2018 , Ian Cumming, Mehdi Azzabi, Eric Bousquet

Dell U2415
MONITOR REVIEW

Usage Ratings - Version 1.0

Test Benches: test

  • 1.0: Fall 2017
7.4
Mixed Usage
Score components:
  • 30% Office
  • 30% Multimedia
  • 25% Gaming
  • 10% Media Creation
  • 5% HDR Gaming
Size : 24 "
Resolution : 1920x1200
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

The Dell Ultrasharp U2415 is an above-average IPS LCD monitor with a PC focused 1920x1200 resolution. Its wide viewing angles, taller aspect ratio (16:10) and highly ergonomic stand make it a great fit for office spaces, and its low input lag makes it a decent gaming choice as well. However, some aspects of its picture quality leave a bit to be desired, and it doesn't support modern features such as HDR or variable refresh rates.

Test Results
Design 7.5
Picture Quality 6.8
Motion 7.1
Inputs 8.3
Pros
  • Wide viewing angles
  • Easily adjustable stand
Cons
  • Mediocre contrast
  • Blacks are cloudy

Check Price

7.5

Design

Score components: Subjectively assigned
Dell U2415 Design Picture
Curved : No
Curve radius : N/A
Weight (without stand) : 8.0lbs (3.6 kg)
Weight (with stand) : 12.8lbs (5.8 kg)

The design of this Dell Ultrasharp U2415 is good. It has a small, sturdy stand and looks professional. It feels very stable and the build quality is good, with smooth movements of the stand and a great range of ergonomic adjustments. The design is very similar to other Ultrasharp monitors such as the U2515H.

Stand
Dell U2415 Stand picture
Width : 9.6" (24.5 cm)
Depth : 8.1" (20.5 cm)

The rectangular stand of this monitor has a small footprint but still supports the monitor well. It feels stable and looks quite good.

8.2 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 U2415 Ergonomics picture
Height Adjustment : 4.5" (11.5 cm)
Switch portrait/landscape : Yes
Swivel Range : -45° to 45°
Tilt Range : -22.5° to 5°

The Dell Ultrasharp U2415 has a great range of ergonomic adjustments which makes it very easy to find a comfortable viewing position or to rotate and share the image with friends or coworkers.

Back
Dell U2415 Back picture
Wall Mount : VESA 100x100

The rear of the monitor is quite simple and looks similar to other Dell monitors such as the U2515H. It is made of plastic and looks clean and professional. There is a hole in the rear of the stand for cable management, visible here.

Borders
Dell U2415 Borders picture
Borders : 0.2" (0.6 cm)

The borders of the monitor are thin, and look good. If used in a multi-monitor setup then the thin edges aren't too distracting.

Thickness
Dell U2415 Thickness picture
Thickness (with stand) : 5.8" (14.7 cm)
Thickness (without stand) : 1.7" (4.2 cm)

The monitor is quite thin when viewed from the side, and sits quite close to a wall when used with the stand which is good.

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 U2415 Build Quality picture

The build quality of this Dell monitor is good. It is mostly made of plastic but feels sturdy, similar to other Ultrasharp monitors such as the Dell U2717H.

The Dell Ultrasharp U2415 IPS monitor has a decent picture quality. The passable contrast ratio and poor black uniformity mean that it won't be the best monitor for darkroom use, but when set in a bright room, like an office space, the decent peak brightness and the way it deals with reflections mean the monitor will be much better suited for this kind of conditions. The viewing angles of the Dell U2415 are good and picture quality remains pretty good even if you see the monitor from the side or from the top, which is important if you have a dual monitor setup, where one monitor is set vertically.

The gray uniformity is great and dirty screen effect is really not an issue, no matter what kind of content you are viewing. The out of the box accuracy is very good and the coverage of the sRGB color space is excellent, making any SDR content looks like it was intended to be. Since this monitor is fairly standard, it does not have any more advanced features like HDR and local dimming.

6.1 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 U2415 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
:
1064 : 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 Ultrasharp U2415 monitor's contrast ratio is not bad. With a contrast ratio just hovering about the 1000:1 mark, it is not in the top performer of the Dell IPS monitor, which hang around 1200:1, but is not far behind. Like with most other IPS monitor though, the U2415 is better suited for bright environments, as when used in a dark room, blacks look rather more like grays than really deeps black, which can be a bit disappointing for multimedia content.

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 U2415 monitor does not have a local dimming feature. The video is for reference only.

7.1 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.
:
257 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
:
262 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
:
275 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.
:
275 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.
:
275 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.
:
274 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.
:
260 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.
:
274 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.
:
274 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.
:
274 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.
:
274 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
:
0.003

Decent SDR peak brightness. While the U2415 does not get exceptionally bright, it will be perfectly functional in the majority of environments. Users that have their screen facing direct light sources such as lamps or large windows might find it slightly limiting.

0 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 : N/A
HDR Peak 2% Window : N/A
HDR Peak 10% Window : N/A
HDR Peak 25% Window : N/A
HDR Peak 50% Window : N/A
HDR Peak 100% Window : N/A
HDR Sustained 2% Window : N/A
HDR Sustained 10% Window : N/A
HDR Sustained 25% Window : N/A
HDR Sustained 50% Window : N/A
HDR Sustained 100% Window : N/A
HDR ABL : N/A

HDR is not supported.

7.2 Horizontal Viewing Angle
What it is: Color accuracy when viewed from the side.
Dell U2415 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°
:
42 °
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°
:
34 °
Dell U2415 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°
:
48 °
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°
:
42 °
Dell U2415 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

Average horizontal viewing angle, the Dell U2415's behaviour is typical of other IPS-type LCD monitors. At an angle, the black level does not diverge much with colors remaining decently accurate up to around 40°.

8.2 Vertical Viewing Angle
What it is: Color accuracy when viewed from the top or bottom.
Dell U2415 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°
:
25 °
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°
:
30 °
Dell U2415 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°
:
34 °
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°
:
37 °
Dell U2415 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 °

Very good vertical viewing angle. While the range isn't as large as on a horizontal axis, the Dell Ultrasharp U2415 has no major issues when viewed slightly off axis. This allows it to remain readable when you're quickly glancing at it while standing up.

8.6 Gray Uniformity
What it is: Evenness of colors onscreen (not just gray).
When it matters: Solid colors. Sports, panning shots.
Score components:
Dell U2415 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%
:
3.281 %
50% DSE
What it is: 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%
:
0.109 %
Dell U2415 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%
:
0.463 %
5% DSE
What it is: High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Dark scenes.
Good value: < 0.116%
:
0.046 %

Gray uniformity is great for the Dell U2415, which is good when displaying large areas of a uniform color, such as when gaming, browsing the web or watching YouTube. On the 50% gray test picture, the only visible issue is that the screen looks a bit darker on both sides near the edges and the bottom. Besides this, the screen looks pretty uniform which is great.

Looking at the 5% gray test picture, not much is noticeable, which is good and a sign the screen has a good uniformity. This is great for dark games at night.

4.5 Black Uniformity
What it is: Evenness of blacks.
When it matters: Dark scenes viewed in a dark room.
Score components:
Dell U2415 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.
:
3.009 %
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

The black uniformity of the Dell Ultrasharp U2415 is poor so dark scenes appear blotchy when viewed in a dark room, such as gaming at night. Backlight bleed is visible near the corners and edges of the screen, which contributes significantly to these uniformity issues. This is less noticeable when in a bright room so if the monitor is used for office work, the poor black uniformity should not be too noticeable.

7.7 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 U2415 Pre Calibration Picture Dell U2415 Pre Gamma Curve Picture Dell U2415 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.
:
Custom Color
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.
:
229.6 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.
:
100-100-100
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
:
6161 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
:
2.73
Color dE
What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
2.84
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
:
2.16

Out of the box, the accuracy is very good. The picture mode with the best accuracy was the 'Custom Color', which for most people, would be good "as is" not requiring any calibration, unless you are a professional who already uses other calibrated monitor, then a calibration could be useful.

Looking more in details, we see that the color are a bit oversaturated and the color temperature is a bit warmer than what we aim for usually, but overal the color dE is still under 3, which is very acceptable. As for the white balance, we still see the trend toward the warm side (a bit more red than necesary) but here again, with a dE under 3, it is still very good. Finally, looking at the gamma, we see the curve diverge a bit from the target curve, but not that much, as least not enought to creat problem, and as for the value, at 2.16, we are really not far from our 2.2 target.

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 U2415 Post Calibration Picture Dell U2415 Post Gamma Curve Picture Dell U2415 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.
:
101.2 cd/m2
Luminance Settings
What it is: The luminance settings, often named 'Brightness' on monitors, usually range from 0 to 100.
:
30
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.
:
96-99-100
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
:
6482 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
:
0.81
Color dE
What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
0.45
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
:
2.18

After calibration, the accuracy of the Dell U2415 is excellent. Both the white balance dE and color dE are now under 1, which at this level of accuracy, imperfections are almost not noticeable. The colors are now tracking spot on their target, which before calibration were a bit oversaturated. As for the color temperature, we are now very close to our desired target of 6500K. Finally, for the gamma, the monitor's gamma curve is closer to our target curve, and the value (2.18) even closer to our 2.2 target.

You can download our ICC profile calibration here.

8.8 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 U2415 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%
:
98.6 %
Dell U2415 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%
:
76.9 %

Very good SDR color gamut. The coverage of the almost universal s.RGB gamut is near perfect thanks to its factory calibration. Its ability to reproduce the Adobe RGB colorspace is however fairly limited, making it less useful for photo or print professionals which might use the larger gamut.

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 U2415 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
:
98.1 %
Dell U2415 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
:
83.8 %

Very good SDR color volume. Since it is quite accurate out of the box, the Dell Ultrasharp U2415 reproduces most of the s.RGB volume most commonly used. Because of its relatively low contrast ratio, it cannot reproduce darker colors of the volume.

0 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
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.
:
N/A
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%
:
N/A

HDR wide gamuts are not supported.

0 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:
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%
:
N/A
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 %
:
N/A

HDR color volumes are not supported.

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 U2415 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 %
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 %
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 %
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 %
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 %
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 %

No sign of image retention could be noticed on the monitor while doing our image retention test.

8.4 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 U2415 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.
:
8 Bit

Great result on our gradient test, as we can see in our test picture. 8-bit banding is visible since this monitor is only an 8-bit monitor, but besides this, no major color banding issues can be noticed, which is great for multimedia content.

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 U2415 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 U2415 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 U2415 does not produce color bleed.

7.5 Reflections
What it is: How much light is reflected by the TV.
When it matters: Bright rooms.
Score components: Subjectively assigned
Dell U2415 Average room Dell U2415 Average room off picture Dell U2415 Bright room off picture

The reflection handling is good. It has a light-matte finish which produces diffuse reflections and reduces their intensity. It does also cause a light haze, but this shouldn't be an issue for most rooms. In a bright room though, reflections may be distracting.

7.1

Motion

Score components:

Motion looks decent on the Dell Ultrasharp U2415, but not as good as on many gaming monitors. It has a fast pixel response time and a flicker-free backlight, which is good, but its very ordinary 60 Hz refresh rate and lack of variable refresh rate technology such as FreeSync will be limiting for some use cases like gaming.

8.3 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 U2415 Motion Blur Picture Dell U2415 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
:
6.4 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
:
13.2 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

Very good pixel response time, good enough for fast moving content like video games or sports. Most of the blur in the photo is due to 60 fps persistence which is a result of the Image Flicker; only a short ghosting trail can be seen following the moving logo, and very little color smearing, which is great. The 'Response Time Normal' setting is best; the 'Fast' setting adds noticeable overshoot and barely improves the rise time, and so is not recommended.

7.5 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 U2415 Backlight Picture
Flicker-free : Yes
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.
:
0 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 monitor has a flicker-free backlight, which is great as it provides smoother motion when browsing the web or for office use. Unfortunately, it can't add optional 60 Hz BFI flicker to help clear up motion, but it's very rare for 60 Hz monitors to have BFI because 60 Hz flicker can be bothersome to people.

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

Like most monitors, the Dell Ultrasharp U2415 only has a 60 Hz refresh rate and no variable refresh rate feature. While this is good enough for most use cases, all would benefit from a higher refresh rate. Gaming, in particular, will be limited by the mediocre 60 Hz maximum refresh rate and lack of variable refresh rate technology such as FreeSync.

8.3

Inputs

Score components:

One of the Dell U2415's standout features is its taller 16:10 aspect ratio, making it better than 1080p monitors for height-limited use cases such as web browsing, but still not as good as the many 27" 1440p monitors on the market. The monitor also has great low input lag, which will satisfy all but the most competitive gamers.

8.9 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
:
9.1 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
:
9.1 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
:
9.1 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
:
N/A
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

Non-native resolution tested: 1920 x 1080

Great low input lag, good enough for all but the most competitive gamers. This input lag is very similar to most other 60 Hz monitors like the Dell U2715H and HP V320; a higher refresh rate is almost required to lower the input lag any further.

7.4 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 : WUXGA, 1920 x 1200
Aspect Ratio : 16:10
Megapixels : 2.3 MP
Pixel Density : 94 PPI
Screen Diagonal : 24.0 inches
Screen Area : 260 sq inches

The Dell U2415 uses a taller 16:10 aspect ratio rather than the more common 16:9; this means that it has more vertical pixels (1200) than a normal 1080p monitor like the P2417H, despite having the same number of horizontal pixels (1920). This makes the monitor better for usage that benefits from the extra height, like web browsing, but only as good as a normal 1080p monitor for movie and TV watching. Unfortunately a 27" 1440p monitor would be better than the U2415 for almost all use cases.

Inputs
Total Inputs
DisplayPort : 1 (DP 1.2)
Mini DisplayPort : 1 (DP 1.2)
HDMI : 2 (HDMI 1.4)
DVI : No
VGA : No
DisplayPort Out : 1 (DP 1.2)
USB : 5 (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

The 3.5mm analog audio out jack is a fixed line out intended for speakers, so the monitor can't change its volume. It's possible to use it for headphones by using a computer to change the volume, but when used with headphones, there's a quiet hiss of static that is always present.

Both the HDMI ports support the MHL 2.0 standard for connecting mobile devices such as smartphones.

The lone USB port perpendicular to the back of the monitor supports the BC1.2 battery charging standard, and can provide up to 2A of charging current for supported devices.

Features

The Dell Ultrasharp U2415 has a few useful features like a built-in five USB port hub, and a DisplayPort Out for daisy chaining with other monitors, allowing multiple monitors to be fed from a single DisplayPort on a computer.

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 : No

The monitor has a DisplayPort Out for daisy chaining with another monitor, allowing multiple monitors to be fed by one DisplayPort on a computer. This works by using the DisplayPort Multi-Stream Transport (MST) standard to send the video data for multiple monitors over a single cable. The U2415 receives the signal, then forwards the other video feeds out its DisplayPort Out to the other monitors in the chain.

The monitor also has a built-in USB hub with five USB 3.0 ports, one of which supports the BC1.2 battery charging standard for faster charging. The monitor also has a setting for leaving the USB ports powered even when the monitor is on standby, which is handy.

On-Screen Display (OSD)
Controls
Dell U2415 Controls picture

The monitor uses an ordinary four button scheme to control the OSD; however, the buttons are touch buttons, which are nicer to press but can take some getting used to at first.

In The Box
Dell U2415 In The Box picture

  • Manual and drivers
  • Calibration report
  • Power cable
  • USB cable
  • Displayport to Mini Displayport cable

Differences between Sizes and Variants

We tested the Dell U2415, which is a 2015 model year 24" Ultrasharp monitor. There are many other sizes and year variants of the Dell Ultrasharp monitors, listed below.

If someone comes across a different type of panel or if their Dell U2415 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.

Model Size Year Resolution
U2415 24" 2015 1920x1200
U2515H 25" 2015 2560x1440
U2715H 27" 2015 2560x1440
U2717D 27" 2017 2560x1440
U2518D 25" 2018 2560x1440

Compared to other Monitors

Dell U2415 Group Shot Picture
Left: ASUS VG248QE. Middle: Dell U2415. Right: Dell P2217H
Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The Dell U2415 is a decent professional monitor, which is good for an office environment due to the wide viewing angles, decent picture quality, and highly ergonomic stand. For other uses though, there may be better value for money elsewhere.

Dell P2417H

The Dell U2415 is a bit better than the Dell P2417H. The U2415 has a slightly higher resolution than the P2417H, so you can fit more your screen. The U2415 also has a better vertical viewing angle, great if you plan on wall mounting the screen above eye-level. Overall picture quality and performance is very similar.

Dell P2217H

The Dell U2415 is a bit better than the Dell P2217H. The Dell U2415 has a larger size, and it gives you more space to work on although the two monitors share the same FHD resolution. Also, the Dell U2415 has slightly better black uniformity which you might notice if you work or watch a movie in a darker room.

ASUS VG248QE

The Asus VG248QE is a 1080p gaming monitor, with a 144Hz refresh rate and lightboost support. These are both great for gaming as the high refresh rate and low input lag make the monitor feel very responsive, and lightboost allows the monitor to flicker the backlight and produce very sharp motion. Unfortunately, the picture quality of the TN panel is sub-par and degrades at a slight angle so even when viewed from in front, the sides of the screen look different. Overall, if you only plan to game then it may be worth spending more for the VG248QE but if you care about picture quality at all then go with the Dell U2415.

HP V320

The HP V320 is a 32" monitor which provides great value for size for those after a large monitor on a budget. The 1080p resolution means that despite the size, the effective screen space isn't increased and multi-tasking can be difficult. The ergonomic adjustments are also extremely limited, so it is hard to find a comfortable viewing position or to share images with coworkers or friends. The reflection handling is also worse than the competition, so it is less suited for a bright room. Overall if you don't care about the size difference, the Dell U2415 is a better choice.

Samsung UE590

The Samsung UE590 is a 4k monitor with a TN panel. The high resolution is a big advantage for productivity-related tasks, but unfortunately, the picture quality is sub-par. Out-of-the-box, the image accuracy is bad and the poor viewing angles mean that even when viewed from directly in front the sides of the screen appear non-uniform. The response time is fast for gaming though, so only a short trail can be seen following fast-moving objects. The monitor also supports FreeSync for tear-free gaming. Overall, the resolution isn't enough to make up for the monitor's other flaws so the Dell U2415 is a better choice.

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Conclusion
SEE PRICE
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7.4Mixed Usage
Score components:
  • 30% Office
  • 30% Multimedia
  • 25% Gaming
  • 10% Media Creation
  • 5% HDR Gaming
The Dell Ultrasharp U2415 is a decent monitor for a mixed usage. Its wide viewing angle and great ergonomics make it a particularly good fit for office use, and its low input lag makes it a decent gaming choice as it feels responsive. Unfortunately, it lacks modern features like HDR, and its picture quality in darker environments leaves a lot to be desired.
Good monitor for usage in an office. The taller than average 16:10 aspect ratio can be quite useful for productive tasks, and its overall feature set is well suited for office-oriented tasks. Its wide viewing angle and easy position adjustments make it simple to share with others, and its 1200p resolution provides decent screen real-estate. The picture quality is only decent, but many of the dark scene flaws aren't visible in a bright office.
Good monitor for gaming. With a low input lag of 9.1 ms, the great majority of users won't notice any delay following their mouse movements. However, the Dell U2415 doesn't have more advanced gaming feature such as a higher refresh rate to feel more responsive, or variable refresh rate to reduce screen tearing. It also lacks black frame insertion capabilities which can greatly enhance motion.
Decent monitor for consuming media. While the Dell U2415 does not produce a very high contrast, its factory calibration makes it quite accurate out of the box, allowing you to enjoy natural-looking content. Unfortunately, it lacks supports for wider color gamuts or HDR, and it doesn't have any local dimming feature. Its PC-oriented resolution might be bothersome as well, since full-screen 16:9 content will still feature letterboxing.
Average monitor for media creation. The color accuracy and wide viewing angles are good features for media creators, but its lack of support for professionally oriented color spaces such as Adobe RGB and DCI-P3 makes it a bit limited. Some might also find its resolution to be a bit low for modern photos or video projects which feature high-resolution content.
HDR is not supported. Lack of HDR is common for monitors within this budget, as only a few high-end monitors (such as the CHG70) support HDR.

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