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Vizio D Series 4k 2018
TV REVIEW

Usage Ratings - Version 1.3
7.4
Mixed Usage
Value for price beaten by
: Vizio M Series Quantum 2019
6.7
Movies
7.4
TV Shows
7.4
Sports
8.1
Video Games
6.9
HDR Movies
7.7
HDR Gaming
8.1
PC Monitor
This tv was replaced by the Vizio V Series 2019

Type : LED
Sub-Type
:
VA
Resolution : 4k

The Vizio D Series 2018 is a decent but basic 4k TV. The picture quality is okay, but the TV lacks more advanced features like local dimming or a wide color gamut to produce deeper dark scenes or vivid HDR. The response time is fast which is excellent for displaying sports without much blur and the TV has low input lag for gaming.

Test Results
Design 7.0
Picture Quality 7.4
Motion 7.3
Inputs 8.7
Sound Quality 5.4
Smart Features 6.8
Pros
  • Deep and uniform dark scenes
  • Fast response time
  • Low input lag
Cons
  • Image degrades at an angle
  • Mediocre HDR
Update 3/29/2019: We corrected a mistake in the BFI score.
Update 2/28/2019: Converted to Test Bench 1.3. Learn more about our versioned test bench system here.
Update 12/12/2018: Vizio has released the V505-G9. We have added a note to the sizes & variants section

Check Price

7.0

Design

Curved : No

The design of the Vizio D Series 65 is ok. It has a wide and quite stable stand, although it wobbles a little if slightly pushed. The back is plastic and the TV seems relatively thick when you are looking at it from the side. The build quality is ok and it should not cause any issues. Overall, the TV looks very similar to the Vizio E Series 2018, but the D Series lacks a metal trim.

Stand

The stand of the Vizio D Series 4k 2018 is plastic and provides good support to the TV. However, the TV will wobble slightly back and forth if pushed gently.

Footprint of the 55" model: 50.6" x 10.6"

Back
Wall Mount : VESA 400x200

The back of the TV is plastic. It has a more sleek look and the inputs are still split between the side and the bottom edge, which makes them easier to access if you wall mount the TV. There is no planning for cable management.

Borders
Borders : 0.83" (2.1 cm)

The borders are simple. They have a textured plastic finish and average thickness. They  look identical to E series 2018 but they lack the silver trim on the bottom edge.

Thickness
Max Thickness : 3.35" (8.5 cm)

The TV looks a little thick and blocky when viewed from the side, so it may stick out slightly if wall-mounted. Like all other Vizio models we tested this year, the structure of the TV (screen and electronics' compartment) is more apparent when the TV is viewed from the side.

Temperature
Maximum Temperature
:
93 °F (34 °C)
Average Temperature
:
90 °F (32 °C)

This TV operates at a relatively low temperature and the panel remains uniformly cool to the touch.

7.0 Build Quality

The build quality is ok. It feels solid even though it is almost entirely made from plastic. There are no gaps in the built and you should have no problems with it.

7.4

Picture Quality

The Vizio D Series produces a decent picture quality. It has a very good native contrast ratio that will display deep blacks in dark room conditions and the TV can get bright enough for dim environments. However, in well-lit rooms, it might not be able to get bright enough. When viewing HDR content, you might find the picture slightly dim unless you boost the backlight. The gray uniformity is ok, however, some clouding is noticeable and this might annoy sports fans. It has a limited color gamut, and poor color volume, so you should not expect rich and saturated colors. Finally, reflection handling is very good and should not be an issue in bright rooms.

8.9 Contrast
Native Contrast
:
5392 : 1
Contrast with local dimming
:
N/A

The contrast of the Vizio D Series 4k 2018 is excellent. Blacks look great and this improves the picture quality when the TV is is viewed in a dark room, and especially for dark movie scenes.

0 Local Dimming
Local Dimming
:
No
Backlight
:
Full-Array

This TV does not have a local dimming option.

7.7 SDR Peak Brightness
SDR Real Scene Peak Brightness
:
316 cd/m²
SDR Peak 2% Window
:
326 cd/m²
SDR Peak 10% Window
:
326 cd/m²
SDR Peak 25% Window
:
326 cd/m²
SDR Peak 50% Window
:
326 cd/m²
SDR Peak 100% Window
:
326 cd/m²
SDR Sustained 2% Window
:
325 cd/m²
SDR Sustained 10% Window
:
325 cd/m²
SDR Sustained 25% Window
:
325 cd/m²
SDR Sustained 50% Window
:
326 cd/m²
SDR Sustained 100% Window
:
326 cd/m²
SDR ABL
:
0.000

The Vizio D65-F1 SDR peak brightness is good. The TV achieves brightness levels that are good for a dark room and satisfactory for a brighter ambiance. It is worth noting that the TV brightness level remains uniform no matter the size of the highlights.

6.2 HDR Peak Brightness
HDR Real Scene Peak Brightness
:
312 cd/m²
HDR Peak 2% Window
:
320 cd/m²
HDR Peak 10% Window
:
321 cd/m²
HDR Peak 25% Window
:
321 cd/m²
HDR Peak 50% Window
:
321 cd/m²
HDR Peak 100% Window
:
320 cd/m²
HDR Sustained 2% Window
:
320 cd/m²
HDR Sustained 10% Window
:
320 cd/m²
HDR Sustained 25% Window
:
320 cd/m²
HDR Sustained 50% Window
:
320 cd/m²
HDR Sustained 100% Window
:
320 cd/m²
HDR ABL
:
0.000

The Vizio D series 4k 2018 has ok HDR peak brightness. It does not get very bright to display bright highlights as the creator intends, but it does not dim highlights and it displays a steady brightness no-matter the window size.

If you find HDR content too dim, raising the Backlight setting to 100 (rather than the default 50) and setting the Gamma to 1.8 will brighten most HDR shades, but unfortunately won't affect peak highlights.

Also during our testing the TV got stuck once at 70 cd/m², but resetting the picture mode fixed the issue.

7.0 Gray Uniformity
50% Std. Dev.
:
4.385 %
50% DSE
:
0.182 %
5% Std. Dev.
:
1.614 %
5% DSE
:
0.117 %

The gray uniformity is decent. On the 50% gray uniformity test picture, we can see that the four corners are a slightly darker than the center. Some clouding is apparent which causes a little dirty screen effect which might annoy some people when viewing sports.

On the 5% gray uniformity picture, things are a little better as not much clouding can be noticed.

5.6 Viewing Angle
Color Washout
:
29 °
Color Shift
:
44 °
Brightness Loss
:
34 °
Black Level Raise
:
14 °
Gamma Shift
:
15 °

The viewing angle is bad for this Vizio D Series 2018. Blacks fade to grey at only small angles off the center and colors shift rapidly at an angle as well. It is not a great choice if you plan on placing it in a wide room.

8.2 Black Uniformity
Native Std. Dev.
:
0.827 %
Std. Dev. w/ L.D.
:
N/A

The Vizio D65 has an impressive black uniformity. The screen is uniform and does not show signs of clouding. This is very good, especially for dark scenes.

7.9 Reflections
Screen Finish
:
Semi-gloss
Total Reflections
:
5.2 %
Indirect Reflections
:
0.5 %

The Vizio D Series 4k 2018 is good at handling reflections. The semi-gloss finish diffuses reflections across the screen, reducing their intensity. Unless you are planning on watching TV in a very bright room, reflections should not be an issue.

8.3 Pre Calibration
White Balance dE
:
2.46
Color dE
:
2.39
Gamma
:
2.19
Color Temperature
:
6434 K
Picture Mode
:
Calibrated Dark
Color Temp Setting
:
Normal
Gamma Setting
:
2.2

The TV has very good out of the box color accuracy. When set to Calibrated Dark, the color dE and white Balance dE are well below 3, so most people will not notice any inaccuracies.

The gamma is at 2.19 almost right on our 2.2 target. Finally, the color temperature is close to 6500K resulting in a fairly accurate picture.

9.5 Post Calibration
White Balance dE
:
0.08
Color dE
:
1.36
Gamma
:
2.20
Color Temperature
:
6498 K
White Balance Calibration
:
11 point
Color Calibration
:
Yes
Auto-Calibration Function
:
No

The post calibration picture is close to perfect. The calibration process is fairly straightforward and relatively fast to do. The white balance dE was brought down to 0.08. The color dE was slightly harder to minimize, but the residue is so small that most people won't notice. Finally, the gamma is tracking perfectly our goal of 2.2.

You can see our recommended settings here.

7.0 480p Input

Upscaling of low-quality content is slightly worse than average. Similar to other Vizio TVs, DVDs appear a bit soft but there is some choppiness to the image.

You can see a comparison of the Vizio M Series and TCL 6 Series here.

7.0 720p Input

720p sources such as cable TV are a bit softer than most other TVs.

9.0 1080p Input

1080p content such as Blu-rays look good. The image remains clear and sharp.

10 4k Input

No issues can be seen with native 4k content.

6.9 Color Gamut
Wide Color Gamut
:
No
DCI P3 xy
:
76.09 %
DCI P3 uv
:
82.70 %
Rec 2020 xy
:
54.83 %
Rec 2020 uv
:
61.29 %

The color gamut is decent, but the TV fails to be classified as having a wide color gamut since the cover of the Rec 2020 uv space fails to surpass our target of 67%.

The HDR EOTF in the Calibrated Dark picture mode follows the target PQ curve well at first, but then begins its roll-off really early, so well-lit areas of HDR scenes will be shown less bright than intended. If you find HDR content too dark, raising the Backlight setting to 100 and setting Gamma to 1.8 will raise the EOTF and brighten most HDR scenes.

Enabling Game Low Latency doesn't change the EOTF, which is good, and the EOTF in the Computer picture mode is also very similar.

6.2 Color Volume
Normalized DCI P3 Coverage ITP
:
71.1 %
10,000 cd/m² DCI P3 Coverage ITP
:
28.7 %
Normalized Rec 2020 Coverage ITP
:
52.5 %
10,000 cd/m² Rec 2020 Coverage ITP
:
21.2 %

The color volume on this Vizio D Series 65 is mediocre. The inability of the TV to display a full range of colors across a range of brightnesses esteems from the limited color gamut. Colors on this TV will not be very rich and darker color shades will be crushed.

8.5 Gradient
Color Depth
:
10 Bit
Red (Std. Dev.)
:
0.092 dE
Green (Std. Dev.)
:
0.113 dE
Blue (Std. Dev.)
:
0.085 dE
Gray (Std. Dev.)
:
0.090 dE

The gradient is very good. A little banding is present almost everywhere, but only in the dark green and gray you might spot a little more.

There is no gradient smoothing feature but, the TV has a Reduce Noise feature that may help reduce banding in low quality content.

10 Temporary 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 %

No image retention is present and this is in line with other TVs that use VA panels.

10 Permanent Burn-In Risk
Permanent Burn-In Risk
:
No

We don't expect VA panels to experience permanent image retention, as the VA panel in our long-term test appears immune.

Pixels
7.3

Motion

The Vizio D Series has ok motion handling. It has a panel with a fast response time, which is good because the TV can handle fast action well without much blur. At the same time in slow fps content, some stutter is visible, which is due to the lack of motion interpolation that cannot be removed. The TV uses PWM to dim the backlight at a fast rate and should not be noticeable to most people. Finally, the TV will remove judder if the 24fps is not coming through a 60p or 60i source.

8.9 Response Time
80% Response Time
:
4.6 ms
100% Response Time
:
12.1 ms

The Vizio D Series 4k 2018 has an excellent response time. There is very little motion trail behind fast moving objects. The little overshoot that exists in some transitions, is not likely to cause any artifacts.

7.9 Flicker-Free
Flicker-Free
:
No
PWM Dimming Frequency
:
480 Hz

The TV uses PWM to dim its backlight, so the backlight flickers at all Backlight settings below 100. The flicker frequency is at 480 Hz, which is high so it isn't very noticeable except in small duplications behind moving objects.

Also we noticed that the backlight also dips down at every 1/60th of a second (60Hz) as shown in in the backlight@100% plot. This should not be noticeable to most and should not worry you.

2.9 Black Frame Insertion (BFI)
Optional BFI
:
No
Min Flicker for 60 fps
:
480 Hz
60 Hz for 60 fps
:
No
120 Hz for 120 fps
:
N/A
Min Flicker for 60 fps in Game Mode
:
480 Hz

The D series does not support BFI.

Update 03/29/2019: The 120 Hz for 120 fps test was scored incorrectly. The score has increased slightly.

0 Motion Interpolation
Motion Interpolation (30 fps)
:
No
Motion Interpolation (60 fps)
:
No

The Vizio D Series 65 does not have any motion interpolation features unlike the higher end P Series 2018 or the TCL 6 Series.

7.2 Stutter
Frame Hold Time @ 24 fps
:
29.6 ms
Frame Hold Time @ 60 fps
:
4.6 ms

In 24p, some stutter is noticeable because of the fast response time. Unfortunately, the TV has no motion interpolation to insert in-between frames and thus you can only rely on the minimum blur created by the response time to smooth it out.

7.8 24p Judder
Judder-Free 24p
:
Yes
Judder-Free 24p via 60p
:
No
Judder-Free 24p via 60i
:
No
Judder-Free 24p via Native Apps
:
Yes

The Vizio D Series 4k can play 24p content from the native apps, or a DVD or a Blu-ray without judder. To remove judder set Film mode to on.

When the 24fps is coming through 60i or 60p then just like the 2017 model the TV is not able to remove it.

0 Variable Refresh Rate
Native Refresh Rate
:
60 Hz
Variable Refresh Rate
:
No
4k VRR Maximum
:
N/A
4k VRR Minimum
:
N/A
1080p VRR Maximum
:
N/A
1080p VRR Minimum
:
N/A
1440p VRR Maximum
:
N/A
1440p VRR Minimum
:
N/A
VRR Supported Connectors
:
N/A

The Vizio D65-F1 doesn't support any variable refresh rate features.

8.7

Inputs

The Vizio D Series has a very low input lag both for SDR and HDR content. This makes the TV feel very responsive to user input which should keep happy those who plan to play games on the TV. This year's model supports a variety of input resolutions but no support for 120Hz or for 1440p is available. Finally,  the Vizio D65-F1 can display 4:4:4 color on all ports, as long as you set it to Full UHD Color. It's worth noting that the TV comes equipped with a TV tuner.

8.9 Input Lag
1080p @ 60 Hz
:
23.9 ms
1080p @ 60 Hz Outside Game Mode
:
67.5 ms
1440p @ 60 Hz
:
N/A
4k @ 60 Hz
:
23.9 ms
4k @ 60 Hz + 10 bit HDR
:
26.2 ms
4k @ 60 Hz @ 4:4:4
:
23.6 ms
4k @ 60 Hz Outside Game Mode
:
67.6 ms
4k @ 60 Hz With Interpolation
:
N/A
8k @ 60 Hz
:
N/A
1080p @ 120 Hz
:
N/A
1440p @ 120 Hz
:
N/A
4k @ 120 Hz
:
N/A
1080p with Variable Refresh Rate
:
N/A
1440p with VRR
:
N/A
4k with VRR
:
N/A
8k with VRR
:
N/A
Auto Low Latency Mode (ALLM)
:
No

The input lag is very low. To achieve low input lag you must set the Game Low Latency to on, You can do that from any picture mode so we recommend using the Calibrated Dark picture mode.

4:4:4 is only shown properly in the Computer picture mode and the Game Low Latency must be enabled for low input lag. It is however enabled by default when a 4:4:4 signal is sent and thus it is grayed out.

7.5 Supported Resolutions
1080p @ 60 Hz @ 4:4:4
:
Yes
1080p @ 120 Hz
:
No
1440p @ 60 Hz
:
No
1440p @ 120 Hz
:
No
4k @ 60 Hz
:
Yes
4k @ 60 Hz @ 4:4:4
:
Yes
4k @ 120 Hz
:
No
8k @ 30 Hz or 24 Hz
:
No
8k @ 60 Hz
:
No

The D Series 65, like other mid-low end Vizio models, does not support 120Hz. It does support most common resolutions at 60Hz except 1440p.

Only in Computer picture mode can 4:4:4 color be displayed properly, and it only works only when Full UHD Color is enabled.

4k @ 60Hz @ 4:4:4 + HDR is also supported.

Input Photos

There is a shared component/composite input on the side inputs of the Vizio D65-F1.

Total Inputs
HDMI : 3
USB : 1
Digital Optical Audio Out : 1
Analog Audio Out 3.5mm : 0
Analog Audio Out RCA : 1
Component In : 1 (shared)
Composite In : 1 (shared)
Tuner (Cable/Ant) : 1
Ethernet : 1
DisplayPort : 0
IR In : 0
SD/SDHC : 0
Inputs Specifications
HDR10
:
Yes
HDR10+
:
No
Dolby Vision
:
No
HLG
:
Yes
3D
:
No
HDMI 2.0 Full Bandwidth
:
Yes (HDMI 1,2,3)
HDMI 2.1
:
No
CEC : Yes
HDCP 2.2 : Yes (HDMI 1,2,3)
USB 3.0
:
No
Variable Analog Audio Out : Yes
Wi-Fi Support : Yes (2.4 GHz, 5 GHz)

Just like the other 2018 Vizio models, in this D series the Digital Audio Out had to be manually set to Bitstream for DTS passthrough (Optical and ARC) to work. If set to Auto it stays in PCM.

Audio Passthrough
ARC
:
Yes (HDMI 1)
eARC support
:
No
Dolby Atmos via TrueHD via eARC
:
No
DTS:X via DTS-HD MA via eARC
:
No
5.1 Dolby Digital via ARC
:
Yes
5.1 DTS via ARC
:
Yes
5.1 Dolby Digital via Optical
:
Yes
5.1 DTS via Optical
:
Yes
5.4

Sound Quality

The sound quality of the Vizio D Series 65 is sub-par. This TV doesn't produce much bass and gets only moderately loud. It also lacks a bit of detail and brightness in its treble range, which is not good for producing clear and easily understandable dialogue. For a better sound, soundbars or dedicated speakers are recommended.

5.1 Frequency Response
Low-Frequency Extension
:
169.51 Hz
Std. Dev. @ 70
:
4.40 dB
Std. Dev. @ 80
:
4.71 dB
Std. Dev. @ Max
:
6.01 dB
Max
:
84.5 dB SPL
Dynamic Range Compression
:
2.99 dB

The frequency response is sub-par. LFE (low-frequency extension) is at 170Hz, which is inadequate. This means that the bass of this TV won't have any thump or rumble, and will lack quite a bit of punch too. The response above the TV's LFE is also sub-par as the underemphasis in the treble range will negatively affect the intelligibility of dialogue. Additionally, this TV get doesn't get very loud, and doesn't have a room correction system.

6.1 Distortion
Weighted THD @ 80
:
0.799
Weighted THD @ Max
:
1.904
IMD @ 80
:
4.66 %
IMD @ Max
:
13.37 %

The distortion performance is mediocre. The overall amount of produced THD is elevated, which tends to make the sound impure. But there is not a big jump in THD under maximum load, which is good. However, this TV doesn't get very loud.

6.8

Smart Features

Smart OS : SmartCast
Version : 1.27

The Vizio D Series 2018 uses the Vizio SmartCast smart interface. It is the same interface found in the rest of the 2018 line of Vizio TVs. It has very basic features but comes equipped with built-in Chromecast media streaming support, allowing you to control the TV from your phone. You can stream files from any app that supports casting. The TV comes with some preinstalled apps that cover the basics. Unfortunately, since there is no app store there is no way to add additional functionality except through a firmware update.

7.0 Interface
Ease of Use
:
Easy
Smoothness
:
Not Smooth
Time Taken to Select YouTube
:
16 s
Time Taken to Change Backlight
:
3 s
Advanced Options
:
Many

The interface is slow and basic, with no animations. There is noticeable lag when browsing the TV shows and movies tabs. (in our test after 3 pictures the TV was stalling for a short period of time before becoming fluid again).

Also during our HDR testing, the TV got stuck once at a really dim 70 cd/m², but resetting the picture mode fixed the issue.

10 Ad-Free
Ads
:
No
Opt-out
:
N/A
Suggested Content in Home
:
Yes
Opt-out of Suggested Content
:
No

The TV does not have ads in its interface or its SmartCast app.

6.5 Apps and Features
App Selection
:
Many
App Smoothness
:
Not Smooth
Cast Capable
:
Yes
USB Drive Playback
:
Yes
USB Drive HDR Playback
:
Yes
HDR in Netflix
:
Yes
HDR in YouTube
:
Yes

There is a limited selection of apps and smart features on the Vizio D Series 4k US version. The 18 apps present were: Netflix, Prime Video, Crackle, VUDU, iHeart Radio, YouTube, Newsy, Dove channel, Curiosity stream, Con TV, Pluto TV, Haystack TV, Xumo, Plex, Fandango Now, NBC, YouTube TV and Hulu.

Note: These are the US Region apps. Other regions might have different apps installed.

There is no app store but any app supported by Google Cast can be cast.

Update 11/15/2018: Vizio has added a 'WatchFree' input via a firmware update. This uses the free Pluto TV service on the backend, and is well integrated.

6.0 Remote
Size
:
Medium
Voice Control
:
No
CEC Menu Control
:
Yes
Other Smart Features
:
No

Very basic and lightweight remote, same as Vizio E Series 2018 and M Series 2018. Small buttons, hard to read for some, but intuitive layout and easy to use. There are 6 button shortcuts for various streaming services at the top of the remote.

There is no voice control built into the remote or on the TV, but if you have a separate Google Home or Amazon Alexa device they can interface with and control the TV.

8.0 Remote App
Acts as the Remote
:
Yes
Directly Launches Apps and Inputs
:
Inputs Only
Inputs Text in YouTube
:
Yes
Inputs Text in Netflix
:
Yes
Streams Device Files
:
No
Controls TV Settings
:
All
Voice Control
:
No

The remote app is good. It can change inputs but not open apps. You can't use it to cast files from your device but third-party software can be used to cast files to the built-in Chromecast. It should be noted that it cannot execute voice commands.

TV Controls

The TV has buttons for power, volume up/down and changing inputs, just like most other Vizio TVs.

In The Box

  • Batteries
  • Remote
  • Manual
Not Shown:
  • 61" Power Cable

Misc
Power Consumption : 69 W
Power Consumption (Max) : 154 W
Firmware : 1.0.15.1

Differences between Sizes and Variants

The Vizio D Series TV that we bought is the 65" with SKU D65-F1. Different sizes may have different panel provenances, so if your  Vizio D Series 4k 2018 doesn't correspond to our review, let us know and we will update the review.  Note that the gray uniformity does vary between units.

Size Model Alternative Name Effective
Refresh Rate
Real
Refresh Rate
43" D43-F1 D Series 43 120 Hz 60 Hz
50" D50-F1 D Series 50 120 Hz 60 Hz
55" D55-F2 D Series 55 120 Hz 60 Hz
60" D60-F3 D Series 60 120 Hz 60 Hz
65" D65-F1 D Series 65 120 Hz 60 Hz
70" D70-F3 D Series 70 120 Hz 60 Hz

Note: The D43-F1 variant comes equipped with 8-watt speakers whereas all the others come with 10-watt speakers.

Update 12/12/2018: Vizio has released the V505-G9, which appears to be a variant of the D Series 2018. It is only available in 50", and as far as we can tell, the only difference is the addition of Dolby Vision support, and possibly an adjustable BFI mode to reduce persistence blur. There may be other differences that we are not aware of.

Compared to other TVs

Top left: Vizio E-Series 2018 (E65-F0) . Bottom left: TCL 5 Series 2018 S517 (55S517 ). Middle: Vizio D-Series 4k 2018 (D65-F1). Top right: LG UK6300 (43UK6300PUE ). Bottom right: Samsung NU7100 (UN55NU7100FXZA ).  Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The Vizio D-Series 4k 2018 is a good low-mid-range 4k TV with a few minor flaws. See our recommendations for the best cheap TVs.

Vizio V Series 2019
40" 43" 43" 50" 55" 55" 60" 65" 65" 70" 75"

The Vizio D Series 4k 2018 and the Vizio V Series 2019 both have very similar performance. The Vizio V Series 2019 has a marginally higher contrast ratio that delivers deeper and more uniform blacks, which is great for watching movies in a dark room. The Vizio D Series 4k 2018 is marginally brighter and has a slightly better response time that produces crisper motion.

Vizio E Series 2018
43" 50" 55" 65" 70" 75"

The Vizio E Series 2018 is a bit better than the Vizio D Series 4k 2018. The Vizio E Series has a local dimming feature, although it isn't very effective. The E series has an optional Black Frame Insertion feature that can help clear up motion. The E series also supports Dolby Vision, which doesn't add much but is a nice extra. The Vizio D Series 4k 2018 has wider viewing angles, good if you have a large seating area.

TCL 5 Series/S517 2018
43" 49" 55" 65"

The TCL 5 Series S517 and the Vizio D Series 4k 2018 have very similar performance. The Vizio D Series 4k 2018 has better reflection handling and better response time that make it a better choice for sports watching, whereas the TCL S517 is better for movies since it supports motion interpolation. The TCL also has lower input lag which makes it more responsive, and this is important when gaming.

LG UK6300
43" 49" 50" 55" 65"

These two TVs have different panel types, each with its advantages and disadvantages. If you've got a room with wide seating arrangement, then the LG UK6300 is a better choice thanks to the wide viewing angles of its IPS panel. If you're sitting directly in front of the TV, then the Vizio D Series 4k 2018 is a better choice as it can deliver deeper and more uniform blacks in a dark room and can get brighter to fight glare in a bright room. The LG UK6300, on the other hand, has better reflection handling and has an optional motion interpolation feature to please the Soap Opera Effect fans.

Hisense H9E Plus
55" 65"

The Hisense H9E Plus is a bit better than the Vizio D Series 4k 2018. The H9E Plus features a wide color gamut, great for HDR, and has much better motion processing as it can interpolate content as high as 120 fps and can remove judder from all sources. The Vizio D is better for use as a PC monitor, as it displays chroma 4:4:4 without issue.

Samsung NU7100
40" 43" 50" 55" 58" 65" 75"

The Samsung NU7100 and the Vizio D Series 4k 2018 have very similar performance. The Vizio D Series 4k 2018 has a faster response time which is great for fast action. It can get slightly brighter and can handle reflections better which is great for watching TV shows. The Samsung NU7100, on the other hand, has lower input lag for gaming and better motion interpolation for those who like the soap opera effect. It also has slightly better 720p upscaling that is better if you watch a lot of cable TV.

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Conclusion
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7.4 Mixed Usage
The performance of the Vizio D65-F1 for mixed usage is okay. Movie and regular cable TV watching is decent, whereas playing video games and using it as a PC monitor should keep you satisfied. This TV does not have a great HDR performance since it has a limited color gamut and will not display rich and saturated colors, far from what the content creator intended.
6.7 Movies
This TV is decent for watching movies. It has a very good contrast ratio that will display good blacks in dim environments but lacks any local dimming to further boost blacks. You should not observe much clouding in darker scenes since the TV's black uniformity is very good. Watching 4k and Blu-ray content looks great.
7.4 TV Shows
Watching TV shown on the Vizio D Series 2018 is ok. The TV can get good enough brightness levels for brighter rooms and can handle reflections well. Unfortunately, viewing angles are not very good and thus the picture quality will not be the same if you are watching a TV show while moving around doing some housework. On the other hand, upscaling 720p cable content is ok.
7.4 Sports
This TV is decent for watching sports. The good reflection handling and the great response time. make it a good choice for watching fast action sports in a room with a few lights. Some dirty screen effect is present and that will disappoint sports fans. Also if you plan to watch a game with a big group you take into account that the bad viewing angles do not favor wide seating arrangements.
8.1 Video Games
The Vizio D Series 65 is very good for playing video games. It has a low input lag both in SDR and HDR content, which makes it very responsive to user input, and also has a remarkably fast response time which is great for fast action.
6.9 HDR Movies
Ordinary performance for this TV on HDR movies. Apart from the great contrast and the great 4k content display, this TV is producing a satisfactory result for HDR movie watching. This is mainly because it cannot display rich and saturated colors due to its limited color gamut.
7.7 HDR Gaming
Playing HDR games on this TV is good as it supports the 4k @ 60Hz + HDR input. Also, the fast response time makes it suitable for fast action. The good contrast will offer a decent experience in dark scene HDR gaming. However, you should keep in mind the limited color gamut which will not allow it to display rich and vivid colors.
8.1 PC Monitor
This Vizio D Series will perform very well as a PC monitor mainly due to its remarkable input capabilities. The various supported resolutions and the low input lag should keep most people happy. Also, the fact that there is practically no permanent burn-in risk and no temporary image retention, should not deter you from using it as a PC monitor.