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Dell S2719DGF Monitor Review

Tested using Methodology v1.1
Updated Jan 31, 2019 at 08:01 am
Dell S2719DGF Picture
Test Methodology v1.1
7.2
Mixed Usage
7.3
Office
8.1
Gaming
6.8
Multimedia
7.0
Media Creation
5.2
HDR Gaming
Size 27"
Resolution 2560x1440
Max Refresh Rate
155 Hz
LCD Type
TN
Variable Refresh Rate
FreeSync

The Dell S2719DGF is a decent 144Hz monitor with a TN panel and mediocre picture quality. It has great gaming features including FreeSync support, excellent low input lag and fast response time. It can get bright enough for a bright room but has bad dark room performance due to the low native contrast ratio, and terrible black uniformity that does not allow it to display deep uniform blacks. It has disappointing viewing angles and the image is accurate only when you are sitting directly in front. However, this can be somewhat counterbalanced by the good ergonomics that allow many position adjustments. It has great out-of-the box color accuracy but does not support HDR.

Our Verdict

7.2 Mixed Usage

This is a decent monitor for mixed usage. It has a very fast response time that leaves only minimal blur and very low input lag to enhance the gaming experience. It has good size and enough resolution to allow you to multitask, and good brightness suitable for bright spaces.

See our Mixed Usage recommendations
7.3 Office

The Dell S2719DGF is a decent monitor for office use. The screen size and native resolution are suitable for working with multiple windows open at the same time. It has great ergonomics and you can easily swivel it towards your colleague sitting next to you if you wish to share your work. It can handle reflections well so you do not have to worry if a few small light sources are facing the monitor.

See our Office recommendations
8.1 Gaming

The S2719DGF is a very good monitor for gaming. It is very responsive to your actions due to the very low input lag and its extremely fast response time ensures that fast moving content will have very little blur. It has great resolution and large size that allow you to see every detail of your game. Finally, it supports FreeSync that prevents tearing and can be overclocked up to 155Hz to enhance your gaming experience.

See our Gaming recommendations
6.8 Multimedia

This is a decent monitor for multimedia. It is very responsive due to the low input lag and has good size and excellent resolution so that you can view most of the online available content at its native resolution. Unfortunately, the best image quality is reserved for those sitting directly in front due to the disappointing viewing angles.

See our Multimedia recommendations
7.0 Media Creation

The Dell S2719DGF is a decent monitor for media creation. It has good resolution and size that allows you to stack many windows on your screen. It has a good color gamut for casual users, but professionals will find it limiting. Unfortunately, the viewing angles are disappointing and the image at the sides is less accurate. On the upside, swiveling left or right is easy due to the great ergonomics.

See our Media Creation recommendations
5.2 HDR Gaming

HDR is not supported. If you are looking of a monitor with HDR support check out the Samsung CHG70.

See our HDR Gaming recommendations
  • 7.2 Mixed Usage
  • 7.3 Office
  • 8.1 Gaming
  • 6.8 Multimedia
  • 7.0 Media Creation
  • 5.2 HDR Gaming
Pros
  • Extremely fast response time
  • Excellent low input lag and great gaming features
Cons
  • Bad dark scene performance
  • Image loses accuracy at an angle
  1. Update 2/24/2020: Converted to Test Bench 1.1.

Check Price

27" S2719DGF
SEE PRICE
B&H

Test Results

Design
Design
Style
Curved No
Curve Radius Not Curved
Weight (without stand)
9.5 lbs (4.3 kg)
Weight (with stand)
13.4 lbs (6.1 kg)
Design
Stand
Width
9.6" (24.4 cm)
Depth
7.2" (18.3 cm)

The stand has the usual flat shape that allows you to place small objects on it. It supports the monitor well allowing only minimal wobble.

8.5
Design
Ergonomics
Height Adjustment
5.0" (12.7 cm)
Switch Portrait/Landscape Yes, Both Ways
Swivel Range -45° to 45°
Tilt Range -20° to 5°

The ergonomics are great. You can adjust the height, tilt, swivel and even rotate the monitor with ease. You will have no problem placing it comfortably on your desk.

Design
Back
Wall Mount VESA 100x100

The back of the monitor is very plain. All the inputs are housed in the opening at the back and are facing downwards so they won't protrude if you VESA mount it.

Cable management is serviced through a hole on the stand pole, just like most other Dell monitors.

Design
Borders
Borders
0.3" (0.8 cm)

The borders are thin and you will have no problem placing two monitors side-by-side. There is a groove that runs along the outer side of the border and serves a vent.

Design
Thickness
Thickness (with stand)
5.7" (14.5 cm)
Thickness (without stand)
2.1" (5.3 cm)

The monitor has an average thickness both with and without the stand.

7.5
Design
Build Quality

The build quality of the S21719DGF is good. Like most other Dell monitors, it is mostly made of plastic but it is sturdy without gaps or loose ends. You should have no problem with it.

Picture Quality
5.8
Picture Quality
Contrast
Native Contrast
890 : 1
Contrast With Local Dimming
N/A

The native contrast ratio of the Dell S2719DGF is disappointing. Blacks look gray in a dark room. It is only slightly better than the S2716DG.

0
Picture Quality
Local Dimming
Local Dimming
No
Backlight
Edge

Local dimming is not supported on this monitor. The above video is for reference only.

8.1
Picture Quality
SDR Peak Brightness
SDR Real Scene
386 cd/m²
SDR Peak 2% Window
378 cd/m²
SDR Peak 10% Window
378 cd/m²
SDR Peak 25% Window
378 cd/m²
SDR Peak 50% Window
379 cd/m²
SDR Peak 100% Window
379 cd/m²
SDR Sustained 2% Window
377 cd/m²
SDR Sustained 10% Window
378 cd/m²
SDR Sustained 25% Window
378 cd/m²
SDR Sustained 50% Window
378 cd/m²
SDR Sustained 100% Window
378 cd/m²
SDR ABL
0.000

Great SDR peak brightness, among the top we have measured so far. The monitor can get bright enough for a well-lit office. It is an improvement over the S2716DG, and very similar to the Dell S2417DG

We measured the peak brightness with the 'Custom color' Picture Mode.

0
Picture Quality
HDR Peak Brightness
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

6.4
Picture Quality
Horizontal Viewing Angle
Color Washout From Left
32 °
Color Washout From Right
32 °
Color Shift From Left
41 °
Color Shift From Right
41 °
Brightness Loss From Left
46 °
Brightness Loss From Right
48 °
Black Level Raise From Left
26 °
Black Level Raise From Right
23 °
Gamma Shift From Left
24 °
Gamma Shift From Right
26 °

Disappointing horizontal viewing angles. If you want to share your screen with a colleague, make sure you turn the monitor towards them otherwise they will probably see a darker image than the one you are seeing.

5.1
Picture Quality
Vertical Viewing Angle
Color Washout From Below
16 °
Color Washout From Above
39 °
Color Shift From Below
22 °
Color Shift From Above
44 °
Brightness Loss From Below
34 °
Brightness Loss From Above
31 °
Black Level Raise From Below
28 °
Black Level Raise From Above
56 °
Gamma Shift From Below
3 °
Gamma Shift From Above
3 °

The vertical viewing angles have mediocre overall performance, but they are not symmetrical. When you view the monitor from above the picture remains fairly accurate at large angles. On the contrary, when you look from below the image quality deteriorates very rapidly. We recommend that you place the monitor at eye level or slightly below so that you experience the most accurate image.

7.6
Picture Quality
Gray Uniformity
50% Std. Dev.
5.377 %
50% DSE
0.139 %
5% Std. Dev.
1.655 %
5% DSE
0.069 %

The overall gray uniformity of the S2719DGF is good. In the 50% gray image, you can easily spot the darker shades in the corners and the edges of the screen, but you can hardly spot any dirty screen effect (DSE). This is great if you plan to use the monitor for browsing the web as the image will be free from clouding.

In the 5% gray image the uniformity is slightly improved and you can not see any DSE.

0
Picture Quality
Black Uniformity
Native Std. Dev.
7.400 %
Std. Dev. w/ L.D.
N/A

The black uniformity of the monitor is terrible. Backlight bleed is evident almost everywhere on the screen in our overexposed test image. Unfortunately, this is also noticeable in normal content, especially when displaying a uniform dark color background. Note that black uniformity is panel specific and will differ from unit to unit, but we have seen reports displaying similar uniformity.

7.9
Picture Quality
Pre Calibration
Picture Mode
Standard
Luminance
421 cd/m²
Luminance Settings
100
Contrast Setting
75
RGB Controls
Default
Gamma Setting
No Gamma Setting
Color Temperature
6267 K
White Balance dE
2.07
Color dE
3.08
Gamma
2.26

Very good out-of-the-box color accuracy for the Dell S2719DGF. The most accurate picture mode is the 'Standard'. Most people will hardly notice any gray inaccuracies as the white balance dE is low. However, most enthusiasts might pick off some color inaccuracies as the value of the color dE suggests. There is a slight red/yellowish tint due to the warmer color temperature. The gamma does not follow the curve very closely and as a result, some images appear dimmer than they should.

The monitor offers 3 'game' picture modes. You can change the settings independently on each one and save them so you can easily go back when you want.

9.5
Picture Quality
Post Calibration
Picture Mode
Custom Color
Luminance
100 cd/m²
Luminance Settings
19
Contrast Setting
74
RGB Controls
97-100-99
Gamma Setting
No Gamma Setting
Color Temperature
6495 K
White Balance dE
0.56
Color dE
0.84
Gamma
2.16

After calibration, the color accuracy of the monitor is remarkable. Calibration was done on the 'Custom Color' picture mode and it improved both color and gray accuracies. The errors were diminished to levels impossible to spot with the naked eye. The color temperature was also corrected very closely to the 6500K target, and finally, the gamma follows the target curve more closely delivering a more accurate image.

You can download our ICC profile calibration here. This is provided for reference only and should not be used, as the calibration values vary per individual unit even for the same model due to manufacturing tolerances.

8.4
Picture Quality
SDR Color Gamut
sRGB xy
94.7 %
Adobe RGB xy
74.3 %
sRGB Picture Mode
Custom Color
Adobe RGB Picture Mode
Custom Color

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

Very good SDR color gamut. The sRGB coverage is excellent, but the Adobe RGB coverage is just decent and not ideal for professional photo or video editing. Very similar performance to the S2716DG.

8.6
Picture Quality
SDR Color Volume
sRGB In ICtCp
93.9 %
Adobe RGB In ICtCp
77.8 %
sRGB Picture Mode
Custom Color
Adobe RGB Picture Mode
Custom Color

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

Excellent SDR color volume. The sRGB coverage is excellent, better than the S2716DG, assisted by the better contrast. The monitor can display a great range of colors at various luminance levels.

Even though the wider Adobe RGB color volume coverage is good, it will not meet the needs of professionals in the media and publishing industry.

0
Picture Quality
HDR Color Gamut
Wide Color Gamut
N/A
DCI P3 xy
N/A
Rec. 2020 xy
N/A
DCI P3 Picture Mode
No HDR
Rec. 2020 Picture Mode
No HDR

HDR is not supported

0
Picture Quality
HDR Color Volume
DCI-P3 In ICtCp
N/A
Rec. 2020 In ICtCp
N/A
DCI P3 Picture Mode
No HDR
Rec. 2020 Picture Mode
No HDR

HDR is not supported

10
Picture Quality
Image Retention
IR After 0 Min Recovery
0.00 %
IR After 2 Min Recovery
0.00 %
IR After 4 Min Recovery
0.00 %
IR After 6 Min Recovery
0.00 %
IR After 8 Min Recovery
0.00 %
IR After 10 Min Recovery
0.00 %

There are no signs of temporary image retention, even immediately after showing our high contrast static torture test for 10 minutes.

8.5
Picture Quality
Gradient
Color Depth
8 Bit

The Dell S2719DGF does a great job displaying gradients. There is some slight banding visible in most colors, but nothing major.

9.1
Picture Quality
Color Bleed
Pixel Row Error
0.001 %
Pixel Column Error
0.172 %

Excellent performance on our color bleed test. Although some color bleed is visible, especially in the vertical bands, it is hardly noticeable in normal use.

7.3
Picture Quality
Reflections
Screen Finish
Matte
Total Reflections
5.5 %
Indirect Reflections
2.9 %
Calculated Direct Reflections
2.6 %

Good reflection handling on the S2719DGF. The matte coating diffuses reflections across the screen reducing their intensity. Although this works well in dim rooms, in bright rooms reflections might still be annoying. The behavior is very similar to the Dell P2217H.

7.0
Picture Quality
Text Clarity
Sub-Pixel Layout
RGB
Motion
9.5
Motion
Response Time @ Max Refresh Rate
Best Overdrive Setting
Normal
Rise / Fall Time
4.1 ms
Total Response Time
8.2 ms
Overshoot Error
0.7 %
Dark Rise / Fall Time
3.1 ms
Dark Total Response Time
6.6 ms
Dark Overshoot Error
0.0 %

Response Time Normal
Response Time Fast
Response Time Superfast

The Dell S2719DGF has a very fast response time. This makes motion very crisp with almost no blur. We recommend you keep the Response Time Normal setting, as the other two will introduce noticeable overshoot without significant gains in response time.

8.6
Motion
Response Time @ 60Hz
Best Overdrive Setting
Superfast
Rise / Fall Time
4.1 ms
Total Response Time
15.3 ms
Overshoot Error
1.8 %
Dark Rise / Fall Time
3.2 ms
Dark Total Response Time
13.1 ms
Dark Overshoot Error
0.0 %
10
Motion
Image Flicker
Flicker-Free Yes
PWM Dimming Frequency
0 Hz

The Dell S2719DGF just like the S2716DG, is completely flicker-free. However, it lacks a Black Frame Insertion feature, like the one found on the S2716DG. which can add flicker in order to minimize persistence blur.

0
Motion
Black Frame Insertion (BFI)
Black Frame Insertion (BFI)
No
BFI Maximum Frequency
N/A
BFI Minimum Frequency
N/A
9.1
Motion
Refresh Rate
Native
144 Hz
Max Refresh Rate
155 Hz
Variable Refresh Rate
Yes
FreeSync
Yes
G-SYNC
Compatible (Tested)
VRR Maximum
144 Hz
VRR Minimum
< 20 Hz
VRR Supported Connectors DisplayPort, HDMI

The Dell S2719DGF has a refresh rate of 144Hz but can be overclocked to 155Hz. It supports the FreeSync VRR technology that allows it to change its refresh rate to match that of the graphics card and avoid tearing. We've tested the FreeSync compatibility with our GTX1060 6GB NVIDIA graphics card and it worked without issue over the DisplayPort.

It's worth noting when using an HDMI cable, the overclocking feature is grayed out. It is only available when the monitor is connected through DisplayPort.

Inputs
9.5
Inputs
Input Lag
Native Resolution
4.3 ms
Native Resolution @ 60Hz
9.1 ms
Variable Refresh Rate
4.4 ms
Variable Refresh Rate @ 60Hz
9.7 ms
10 Bit HDR
N/A
Black Frame Insertion (BFI)
N/A

Excellent low input lag which remains low at non-native resolutions (we tested ours at 1920x1080@144Hz), and even when the monitor is in VRR mode. The input lag is higher at native resolution @ 60Hz, but it is unlikely that this will be an issue for most.

8.3
Inputs
Resolution And Size
Native Resolution 2560 x 1440
Aspect Ratio 16:9
Megapixels 3.7 MP
Pixel Density
109 PPI
Screen Diagonal 27.0 inches
Screen Area 311 sq inches

Great resolution and size for the S2719DGF monitor. There is enough screen real estate and resolution to allow you to open many windows simultaneously.

Inputs
Inputs
Inputs
Total Inputs
DisplayPort 1 (DP 1.2)
Mini DisplayPort No
HDMI 1 (HDMI 2.0), 1 (HDMI 1.4)
DVI No
VGA No
DisplayPort Out No
USB 4 (USB 3.0)
USB C No
Analog Audio Out 3.5mm 2
Microphone In 3.5mm No
Digital Optical Audio Out No
Analog Audio Out RCA No
Power Supply Internal

There is 1 upstream USB 3.0 port that allows the monitor to work as a USB hub. Also one of the 3.5mm analog audio out ports is a headphone port with adjustable volume, while the other is a fixed volume line out port.

Features
Features
Additional Features
RGB Illumination
No
Speakers
No
HDR10 No
Multiple Input Display
No

The monitor does not have internal speakers, and does not support HDR10. It has some common additional features most of which are for enhancing the gameplay experience:

  • Frame Rate Counter: Counts the fps the monitor is displaying.
  • Dark Stabilizer: Brings out dark details. Especially useful in FPS games.
  • Timer: Allows you to display a stopwatch on the screen.
  • Display Alignment: Shows grid lines on the edges of the screen to facilitate side-by-side allignment with another monitor.

Update 02/01/2019: There are no internal speakers. The review has been updated.

Features
On-Screen Display (OSD)
Features
Controls
Features
In The Box

  • Manual
  • HDMI cable
  • USB 3.0 Type-a to type-b cable
  • Power cable

Differences Between Sizes and Variants

We've tested the 27" S2719DGF, there are two other sizes available in the same family of monitors.

If someone comes across a different type of panel or if their Dell S2719DGF 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 Native Resolution Refresh rate Notes Year
S2719DGF 27" 2560x1440p 144Hz

FreeSync 

2019
S2716DG 27'' 2560x1440p 144Hz G-Sync 2016
S2417DG 24'' 2560x1440p 144Hz G-Sync 2017

 

Note: The S2719DGF we purchased was manufactured in November 2018

Compared to other monitors

Comparison picture

Left: Dell S2716DG. Center: Dell S2719DGF. Right: ASUS PG279QZ .
Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The Dell S2719DGF is a decent monitor overall. It is great for gaming thanks to its many gaming related features. It's priced quite competitively too, so it tends to be a good choice if you're looking for a gaming monitor (see our recommendations for the best gaming monitors and the best budget gaming monitors). See also our recommendations for the best gaming mice and the best gaming keyboards.

Dell S2716DGR/S2716DG
SEE PRICE
Newegg.com

The Dell S2716DG has very similar performance to the Dell S2719DGF, and the minor differences can be attributed to panel variance. The most significant difference between them is that the S2719DGF supports FreeSync VRR whereas the S2716DG supports G-SYNC VRR and incorporates a BFI feature that the S2719DGF is lacking.

Dell S2417DG
SEE PRICE
B&H

The Dell S2417DG is slightly better than the Dell S2719DGF for most people. The S2417DG has a smaller screen, but it supports NVIDIA G-SYNC and has an optional black frame insertion feature. The Dell S2719DGF, on the other hand, supports FreeSync, which is compatible with more devices, including the Xbox One.

Samsung CHG70
SEE PRICE
B&H

For most people, the VA panel Samsung CHG70 is significantly better than the TN panel Dell S2719DGF. The Samsung CHG70 has better dark room performance with more uniform blacks and local dimming support. The Samsung CHG70 supports HDR content and has a slight curve to immerse you into your work. The Dell S2719DGF, on the other hand, has a more versatile stand that allows you to place it in a comfortable position with ease, and a slightly faster pixel response time that leaves virtually no blur behind fast-moving objects.

MSI Optix MAG271CQR
SEE PRICE
Newegg.com

The MSI Optix MAG271CQR is slightly better than the Dell S2719DGF. The MSI has much better contrast, better gray uniformity, and an optional black frame insertion feature. The Dell, on the other hand, has better ergonomics, so it's a bit easier to place it in an ideal viewing position.

LG 27GL850-B
SEE PRICE
B&H

The LG 27GL850-B is much better than the Dell S2719DGF for most uses, especially if ergonomics aren't important for you. The LG has much better picture quality, with wide viewing angles, much better gradient handling, and HDR support. The LG also has slightly better motion handling, with a slightly faster response time, resulting in slightly clearer motion.

ASUS TUF VG27AQ
SEE PRICE
Newegg.com

The ASUS TUF VG27AQ is significantly better than the Dell S2719DGF. The ASUS has an IPS panel that provides much better viewing angles, contrast ratio, black uniformity, and it supports HDR. However, the Dell has a significantly better motion handling, peak brightness, and reflection handling.

AOC AGON AG271QX
SEE PRICE
B&H

The AOC AGON AG271QX is a bit better than the Dell S2719DGF. The AOC AGON AG271QX has much better black uniformity and thus less backlight bleed in very dark scenes in a dark room. The Dell S2719DGF, on the other hand, has slightly better ergonomics which can be helpful depending on your setup.

ASUS VG279Q
SEE PRICE
B&H

The ASUS VG279Q is a bit better than the Dell S2719DGF. The VG279Q has much better black uniformity, although it still isn't great, and the VG279Q has an optional black frame insertion feature. The S2719DGF has a higher resolution screen, which some people might prefer, and it has a faster response time.

LG 27GL83A-B
SEE PRICE
Newegg.com

The LG 27GL83A-B is much better than the Dell S2719DGF. Since the LG uses an IPS panel, it offers much better viewing angles. Black uniformity is also significantly better on the LG, and it supports HDR, while the Dell doesn't. However, ergonomics and reflection handling are much better on the Dell and they both perform similarly in terms of motion handling.

LG 27UK650-W
SEE PRICE
B&H

These are two different types of monitors, each with their advantages and disadvantages. The LG 27UK650-W, however, performs better in most uses except gaming. The LG has wider viewing angles, supports HDR, and has better dark room performance, although it still isn't too great. The Dell S2719DGF, on the other hand, has a TN panel with an extremely fast response time, and in conjunction with the lower input lag, it's a better choice if gaming is your primary use and you sit straight in front.

Acer VG271UP
SEE PRICE
Newegg.com

The Acer VG271UP is better than the Dell S2719DGF. The VG271UP has much better viewing angles, better gray uniformity, and it supports HDR. The VG271UP also has an optional black frame insertion feature.

ViewSonic VX2758-2KP-MHD
SEE PRICE
B&H

The ViewSonic VX2758-2KP-MHD is better than the Dell S2719DGF. The ViewSonic's IPS panel has much wider viewing angles, a higher contrast ratio, and significantly better black uniformity. However, the Dell is more adjustable due to its excellent ergonomics, its build quality is much better, and it has a slightly higher refresh rate.

ASUS ROG Swift PG279Q
SEE PRICE
B&H

Although the two monitors have a different panel type, most people will agree that the ASUS ROG PG279QZ is much better than the Dell S2719DGF. The ASUS has much better viewing angles due to its IPS panel and supports G-SYNC, whereas the Dell supports FreeSync. The ASUS has much better black uniformity and incorporates a BFI feature that can make the image crisper.

Acer Nitro VG271
SEE PRICE
B&H

Although they use different panel technologies, the Acer Nitro VG271 is much better than the Dell S2719DGF. The Acer displays more uniform blacks and supports HDR, great for dark room gaming. It also has wider viewing angles so you can share your screen with a friend, and both enjoy an accurate image. The Dell, on the other hand, has a higher resolution and a TN panel, which is great for gaming. The response time of the Dell is extremely fast, and fast-moving content on your games will appear crisp with almost no blur trail.

Dell U2718Q
SEE PRICE
Newegg.com

The Dell U2718Q is significantly better than the Dell S2719DGF for most uses, but the S2719DGF is better for gaming. The U2718Q has a higher resolution screen, with better viewing angles, HDR support, and much better black uniformity. The S2719DGF is better for gaming, with a higher refresh rate, FreeSync support, and a flicker-free backlight.

Acer Predator XB271HU
SEE PRICE
B&H

The Acer Predator XB271HU is better than the Dell S2719DGF. The Acer has better viewing angles, an optional black frame insertion feature, and better black uniformity. For gaming, it depends somewhat on your hardware, as the Acer supports G-SYNC variable refresh rate technology whereas the Dell supports FreeSync.

LG 27GL650F-B
SEE PRICE
Newegg.com

The LG 27GL650F-B is much better than the Dell S2719DGF for most uses, but the Dell is a bit better for gaming. The LG supports HDR, has better viewing angles, and an optional black frame insertion feature. The Dell has better ergonomics and a faster response time, and a higher native resolution.

Gigabyte Aorus AD27QD
SEE PRICE
Newegg.com

These are two different types of monitors, each with its advantages and disadvantages. However, in its overall performance, the Gigabyte Aorus AD27QD is significantly better than the Dell S2719DGF. The Aorus has wider viewing angles and a lower input lag. The response time is fast, but not as fast as the TN panel Dell S2719DGF. The Aorus AD27QD supports HDR, although its HDR performance isn't that great.

ASUS TUF VG27VQ
SEE PRICE
B&H

The Dell S2719DGF is a bit better monitor than the ASUS TUF VG27VQ. The Dell uses a TN panel, so it has a much better response time, providing a better gaming experience, and it can get brighter and does a somewhat better job at handling reflections. The ASUS uses an IPS panel, so it has better overall picture quality and it's more suited for dark-room gaming thanks to its much better contrast ratio and black uniformity. The difference between the two really comes down to personal preference and how you're going to use it.