Vizio M6 Series Quantum 2021 TV Review

Tested using Methodology v1.6
Reviewed Oct 01, 2021 at 11:00 am
Vizio M6 Series Quantum 2021 Picture
7.0
Mixed Usage
Value for price beaten by
: Hisense U6G
7.0
Movies
Value for price beaten by
: TCL 5 Series/S535 2020 QLED
7.1
TV Shows
Value for price beaten by
: Hisense U6G
6.5
Sports
Value for price beaten by
: Hisense U6G
7.1
Video Games
Value for price beaten by
: Hisense U6G
6.9
HDR Movies
Value for price beaten by
: Hisense U6G
7.2
HDR Gaming
Value for price beaten by
: Hisense U6G
7.4
PC Monitor
Value for price beaten by
: LG NANO81
Type LED
Sub-Type
VA
Resolution 4k

The Vizio M6 Series Quantum 2021 is a lower mid-range, budget-friendly TV. It's available in a wide range of sizes, from 43 to 75 inches, so you can easily get the right size for your setup. It's part of Vizio's 2021 M Series lineup, sitting below the Vizio M7 Series Quantum 2021, which has a couple of more features like local dimming and a backlight strobing feature. This TV comes with the latest version of the Vizio SmartCast system, which is user-friendly and has a bunch of pre-installed apps, but you can't download any extra apps. Luckily, you can easily cast anything you want from your phone using Google Chromecast or Apple AirPlay 2. It has a few more gaming-oriented features than other budget models like FreeSync variable refresh rate (VRR) support, but it's limited to HDMI 2.0 inputs, so you can't use the PS5 or Xbox Series X to their full capabilities.

Our Verdict

7.0 Mixed Usage

The Vizio MQ6 is decent for most uses. It's decent for watching movies in dark rooms because it has an outstanding native contrast and fantastic black uniformity, but there's no local dimming. It has a few gaming features like FreeSync support and low input lag, but motion looks blurry due to the slow response time. It's okay for watching sports as it has good reflection handling, but it has narrow viewing angles. Although it displays a wide color gamut, it's just okay for watching HDR content because it doesn't get bright enough to make highlights pop.

Pros
  • High native contrast and fantastic black uniformity.
  • Good reflection handling.
  • You can cast anything using Google Chromecast or Apple AirPlay 2.
Cons
  • No local dimming feature.
  • Visible issues with gray uniformity on our unit.
  • Doesn't get bright in SDR or HDR.
7.0 Movies

The Vizio MQ6 is decent for watching movies in dark rooms. It has a VA panel with a high native contrast ratio and fantastic black uniformity, but it lacks a local dimming feature to improve the picture quality in dark scenes. It doesn't have any issues upscaling 1080p content like from Blu-rays, and it removes judder from 24p sources. Unfortunately, our unit has some uniformity issues that are noticeable during slow, panning shots.

Pros
  • High native contrast and fantastic black uniformity.
  • Removes judder from 24p sources and native apps.
Cons
  • No local dimming feature.
  • Visible issues with gray uniformity on our unit.
7.1 TV Shows

The Vizio M65Q6-J09 is decent for watching TV shows in bright rooms. It has good reflection handling if you want to use it in a room with a few lights around, but it doesn't get bright enough to fight a lot of glare. The interface is user-friendly, and you can cast content from your phone, but there's no app store to download any extra apps besides the pre-installed ones. It also has narrow viewing angles, so the image looks washed out from the sides.

Pros
  • Good reflection handling.
  • You can cast anything using Google Chromecast or Apple AirPlay 2.
Cons
  • Visible issues with gray uniformity on our unit.
  • Doesn't get bright in SDR or HDR.
  • Narrow viewing angles make the image inaccurate from the side.
6.5 Sports

The Vizio M65Q6 is okay for sports. It's not a bad choice for use in well-lit rooms because it has good reflection handling, but it doesn't get very bright. Unfortunately, it has a slow response time that makes motion look blurry. It has narrow viewing angles, so it's not a good choice for watching the game with a large group of friends. Also, our unit has noticeable gray uniformity issues that could get distracting during sports.

Pros
  • Good reflection handling.
  • You can cast anything using Google Chromecast or Apple AirPlay 2.
Cons
  • Visible issues with gray uniformity on our unit.
  • Narrow viewing angles make the image inaccurate from the side.
  • Motion looks blurry.
7.1 Video Games

The Vizio MQ6 is decent for gaming. It has a few gaming-oriented features like variable refresh rate support and an Auto Low Latency Mode. It's good for dark room gaming thanks to the high contrast and fantastic black uniformity, but it lacks a local dimming feature. Input lag is low for a responsive gaming experience, but it has a slow response time that makes motion look blurry.

Pros
  • High native contrast and fantastic black uniformity.
  • FreeSync VRR support.
  • Low input lag.
Cons
  • No local dimming feature.
  • Visible issues with gray uniformity on our unit.
  • Motion looks blurry.
6.9 HDR Movies

The Vizio MQ6 is okay for watching HDR movies. It displays a wide color gamut, and it supports both HDR10+ and Dolby Vision formats. Its VA panel has a high native contrast with fantastic black uniformity, but it unfortunately lacks a local dimming feature. Sadly, it doesn't get bright enough in HDR to make highlights stand out.

Pros
  • High native contrast and fantastic black uniformity.
  • Removes judder from 24p sources and native apps.
  • Displays a wide color gamut.
Cons
  • No local dimming feature.
  • Visible issues with gray uniformity on our unit.
  • Doesn't get bright in SDR or HDR.
7.2 HDR Gaming

The Vizio M65Q6 is decent for HDR gaming. It has a VA panel with an outstanding contrast ratio and fantastic black uniformity. However, it doesn't have a local dimming feature to further deepen any blacks or make highlights stand out in HDR. It has VRR support and low input lag for a responsive gaming experience, but it's limited to a 60Hz panel and has a slow response time.

Pros
  • High native contrast and fantastic black uniformity.
  • FreeSync VRR support.
  • Low input lag.
  • Displays a wide color gamut.
Cons
  • No local dimming feature.
  • Visible issues with gray uniformity on our unit.
  • Doesn't get bright in SDR or HDR.
  • Motion looks blurry.
7.4 PC Monitor

The Vizio M65Q6-J09 is decent to use as a PC monitor. It has low input lag for a responsive desktop experience, and it displays chroma 4:4:4 with 1080p, 1440p, and 4k resolutions. It has good reflection handling if you want to use it in a well-lit room, but it doesn't get extremely bright. Sadly, our unit has gray uniformity problems with dark bands that are visible with large areas of bright colors, like on a webpage.

Pros
  • Good reflection handling.
  • Low input lag.
  • Display chroma 4:4:4 with 1080p, 1440p, and 4k signals.
Cons
  • Visible issues with gray uniformity on our unit.
  • Narrow viewing angles make the image inaccurate from the side.
  • 7.0 Mixed Usage
  • 7.0 Movies
  • 7.1 TV Shows
  • 6.5 Sports
  • 7.1 Video Games
  • 6.9 HDR Movies
  • 7.2 HDR Gaming
  • 7.4 PC Monitor
  1. Updated Oct 01, 2021: Review published.
  2. Updated Sep 28, 2021: Early access published.

Test Results

perceptual testing image
Market Context
Market Context
Market Context

The Vizio MQ6 is one of two TVs in the M Series lineup, sitting below the Vizio M7 Series Quantum 2021, which has more features. It's a new TV in 2021, and it sits above the entry-level Vizio V5 Series 2021. It competes with other budget-friendly models like the Hisense U6G, TCL 5 Series/S546 2021 QLED, and the Samsung AU8000.

Design
Design
Style
Curved No

The Vizio MQ6 looks nearly identical to the Vizio M7 Series Quantum 2021, except it has a different stand. It features the same thin borders with a thicker bottom bezel. It has a pretty simple design and should look good in any setup.

Design
Stand

The feet are basic and are set wide apart. They raise the screen about three inches off the table, so you can place a soundbar in front without blocking the screen. Unlike the Vizio M7 Series Quantum 2021, the height of the stand can't be adjusted.

Footprint of the 65 inch TV: 44.9" x 11.8".

Design
Back
Wall Mount VESA 400x200

The back of the Vizio MQ6 has a pretty basic design besides the Vizio logo in the center. The back panel is metal, while the bottom part where the inputs are is made of plastic. Unfortunately, there's no cable management.

Design
Borders
Borders 0.35" (0.9 cm)
Design
Thickness
Max Thickness 2.48" (6.3 cm)

The Vizio MQ6 is even thinner than the Vizio M7 Series Quantum 2021, likely because it doesn't have the extra electronics required for the full-array local dimming feature.

7.0
Design
Build Quality

The Vizio M65Q6 has decent build quality. It's very similar to the Vizio M7 Series Quantum 2021 in terms of style and materials used. It's well-put-together, and the stand supports the monitor well with minimal wobble. The metal on the back feels nice, and even though there's some flex on the plastic near the VESA holes, it feels solid.

Picture Quality
9.2
Picture Quality
Contrast
Native Contrast
6,490 : 1
Contrast with local dimming
N/A

The Vizio MQ6 has an outstanding native contrast, so it displays deep blacks when viewed in the dark. Unfortunately, there's no local dimming feature to improve it. There's a Local Contrast setting that doesn't improve the contrast with our test pattern, but it's possible it does with real content. Keep in mind that contrast can vary between individual units.

6.6
Picture Quality
SDR Brightness
Real Scene Peak Brightness
280 cd/m²
Peak 2% Window
315 cd/m²
Peak 10% Window
316 cd/m²
Peak 25% Window
316 cd/m²
Peak 50% Window
316 cd/m²
Peak 100% Window
316 cd/m²
Sustained 2% Window
315 cd/m²
Sustained 10% Window
316 cd/m²
Sustained 25% Window
316 cd/m²
Sustained 50% Window
316 cd/m²
Sustained 100% Window
316 cd/m²
Automatic Brightness Limiting (ABL)
0.000

The SDR brightness is okay. It doesn't get as bright as the Vizio M7 Series Quantum 2021, so visibility might be an issue in really bright rooms. Luckily, brightness doesn't vary at all between different scenes.

We tested the SDR brightness after calibration in the 'Calibrated Dark' Picture Mode with the Backlight at its max, Gamma set to '2.2', and the Color Temperature set to 'Warm'.

We tried to get a brighter image using the 'Bright' Picture Mode with the Color Temperature on 'Normal', Local Contrast on 'High', and Gamma set to '1.8'. However, we measured 320 cd/m² in the 10% window using these settings, so the difference is minimal.

0
Picture Quality
Local Dimming
Local Dimming
No
Backlight
Direct

The Vizio MQ6 doesn't have a local dimming feature. The videos are for reference only, so you can see how backlight on this display performs and compare it to a similar product with local dimming. Vizio advertises it as having a 'Full-Array Backlight' because it uses direct LED backlighting with LEDs placed along the back of the screen. We list the backlight as 'Direct' to remain consistent with other reviews.

0
Picture Quality
Local Dimming In Game Mode
Local Dimming
No
Backlight
Direct

Once again, there's no local dimming feature. The videos are for reference only, so you can see how backlight on this display performs and compare it to a similar product with local dimming.

5.3
Picture Quality
HDR Brightness
Real Scene Highlight
285 cd/m²
Peak 2% Window
309 cd/m²
Peak 10% Window
310 cd/m²
Peak 25% Window
310 cd/m²
Peak 50% Window
310 cd/m²
Peak 100% Window
310 cd/m²
Sustained 2% Window
308 cd/m²
Sustained 10% Window
310 cd/m²
Sustained 25% Window
310 cd/m²
Sustained 50% Window
310 cd/m²
Sustained 100% Window
310 cd/m²
Automatic Brightness Limiting (ABL)
0.000

The Vizio M6 has a disappointing HDR brightness. It's about the same with real content as the Vizio M7 Series Quantum 2021, but without a local dimming feature to boost highlights, colors don't pop the way the creator intended. EOTF follows the target fairly well until the roll off at the peak brightness, but some brighter scenes are slightly over-brightened.

We tested it before calibration in the 'Calibrated Dark' HDR Picture Mode with Tone Mapping set to '100'; this is just another name for the Backlight setting in HDR. We also set the Gamma to '2.2' and Color Temperature to 'Warm'.

If you find the image is too dim, use the same settings as above but set the Gamma to '1.8' with the Color Temperature on 'Standard'. This makes the image appear brighter as you can see in this EOTF, but it doesn't change the peak brightness.

5.3
Picture Quality
HDR Brightness In Game Mode
Real Scene Highlight
283 cd/m²
Peak 2% Window
309 cd/m²
Peak 10% Window
310 cd/m²
Peak 25% Window
310 cd/m²
Peak 50% Window
311 cd/m²
Peak 100% Window
311 cd/m²
Sustained 2% Window
309 cd/m²
Sustained 10% Window
310 cd/m²
Sustained 25% Window
310 cd/m²
Sustained 50% Window
310 cd/m²
Sustained 100% Window
310 cd/m²
Automatic Brightness Limiting (ABL)
0.000

The HDR brightness in Game Mode is the same as outside of it because you don't need to change the Picture Mode. You only need to enable Game Low Latency to be in Game Mode.

6.3
Picture Quality
Gray Uniformity
50% Std. Dev.
3.970%
50% DSE
0.248%
5% Std. Dev.
1.307%
5% DSE
0.120%

Our unit of the Vizio M6 Series has mediocre gray uniformity. The dark bands are even noticeable with real content, like during slow panning shots or sports with large areas of bright colors like hockey. Uniformity can vary between units, so you may not experience the same issue. Uniformity is better in near-dark scenes, but you can still notice the banding.

9.3
Picture Quality
Black Uniformity
Native Std. Dev.
0.571%
Std. Dev. w/ L.D.
N/A

This TV has fantastic black uniformity with minimal blooming around the center cross. However, because it lacks a local dimming feature, it can't produce those deep black levels needed for a proper dark room viewing experience.

4.6
Picture Quality
Viewing Angle
Color Washout
20°
Color Shift
15°
Brightness Loss
27°
Black Level Raise
11°
Gamma Shift
12°

The Vizio MQ6 has poor viewing angles, and it's even worse than other VA panel TVs we've tested. The image looks inaccurate as soon as you move off-center, and colors shift a lot when viewing from very wide angles.

There's an Enhanced Viewing Angle setting that we didn't use during testing. However, we also measured it with it enabled to see if it would make a difference. It slightly improves the results, but doesn't make a visual difference:

7.5
Picture Quality
Reflections
Screen Finish
Semi-gloss
Total Reflections
5.0%
Indirect Reflections
0.8%
Calculated Direct Reflections
4.1%

The reflection handling is good. It looks more like the Vizio V Series 2020 than the Vizio M7 Series Quantum 2021 because it absorbs more light. This should help if you want to place the TV in a room with a couple of lights around, like small lamps.

8.1
Picture Quality
Pre Calibration
White Balance dE
3.16
Color dE
1.73
Gamma
2.22
Color Temperature
6,307 K
Picture Mode
Calibrated Dark
Color Temp Setting
Warm
Gamma Setting
2.2

The out-of-the-box accuracy is great. There's minimal inaccuracy to most colors, except for saturated reds and blues. White balance is a bit off, but it's not too bad, and the color temperature is close to the 6500K target. Gamma doesn't follow the 2.2 target all that well because dark scenes are too dark and bright scenes are over-brightened. Keep in mind that accuracy can vary between units.

9.5
Picture Quality
Post Calibration
White Balance dE
0.23
Color dE
1.09
Gamma
2.21
Color Temperature
6,514 K
White Balance Calibration
20 point
Color Calibration
Yes

The accuracy after calibration is nearly-perfect. Any remaining inaccuracies to the color, white balance, and gamma are almost impossible to spot with the human eye.

You can see our recommended settings here.

7.0
Picture Quality
480p Input

Like other Vizio TVs, the Vizio MQ6 doesn't properly upscale 480p content. On this model, you can even see the individual pixels with real content, creating a moire-like effect. You can see them in all the upscaling photos, but they're harder to spot in person.

7.0
Picture Quality
720p Input

This TV upscales 720p content fairly well, but there are some artifacts and it's not as good as other 4k TVs.

9.0
Picture Quality
1080p Input

Fortunately, there aren't any issues displaying 1080p content like from Blu-rays.

10
Picture Quality
4k Input

The Vizio M65Q6-J09 displays native 4k content perfectly, with no obvious issues. You can see the moire-like effect if you zoom in on the picture, but it's hard to see in person.

0
Picture Quality
8k Input

This is a 4k TV that can't display an 8k signal.

Picture Quality
Pixels

This TV uses a BGR sub-pixel structure, which doesn't affect image quality, but it can affect text clarity when using the TV as a PC monitor. You can read more about it here.

8.5
Picture Quality
Color Gamut
Wide Color Gamut
Yes
DCI P3 xy
91.50%
DCI P3 uv
95.77%
Rec 2020 xy
71.61%
Rec 2020 uv
79.56%

Thanks to the quantum dot layer, the Vizio MQ6 displays an excellent color gamut. It has fantastic coverage of the commonly-used DCI P3 color space and decent coverage of the wider Rec. 2020. Tone mapping is a bit worse than the Vizio M7 Series Quantum 2021, making colors look less accurate.

7.4
Picture Quality
Color Volume
Normalized DCI P3 Coverage ITP
80.3%
10,000 cd/m² DCI P3 Coverage ITP
32.6%
Normalized Rec 2020 Coverage ITP
66.7%
10,000 cd/m² Rec 2020 Coverage ITP
26.8%

The Vizio MQ6 has decent color volume. It's helped by the wide color gamut, but it struggles to display really bright and really dark colors.

8.5
Picture Quality
Gradient
Color Depth
10 Bit
Red (Std. Dev.)
0.112
Green (Std. Dev.)
0.090
Blue (Std. Dev.)
0.080
Gray (Std. Dev.)
0.093

The gradient handling is excellent. There's some slight banding in the darker shades of green, red, and grey, but it's hard to notice. Setting Contour Smoothing to 'High' or 'Medium' helps smooth out gradients in the test pattern and real content, but 'Low' doesn't do much.

10
Picture Quality
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%

There aren't any signs of temporary image retention, but this can vary between units. You can see here the vertical bands caused by the gray uniformity issues, and this isn't image retention.

10
Picture Quality
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.

Motion
6.5
Motion
Response Time
80% Response Time
6.9 ms
100% Response Time
18.5 ms

The Vizio M65Q6 has a slow response time, creating a blur trail behind fast-moving objects. The response time is even slower in the 0-100% transition, which is typical of VA panels, but this is because there's more overshoot.

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

This TV uses pulse-width modulation (PWM) to dim its backlight at any setting below its max. The 480Hz flicker may create image duplication.

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

The Vizio MQ6 doesn't have an optional backlight strobing feature, commonly known as black frame insertion. The backlight always flickers at 480Hz unless it's at its max.

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

There's no motion interpolation feature.

8.2
Motion
Stutter
Frame Hold Time @ 24 fps
23.2 ms
Frame Hold Time @ 60 fps
0.0 ms

Due to the slow response time, there isn't much stutter with lower-frame rate content.

7.8
Motion
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 M65Q6 can remove judder from native 24p sources like Blu-rays or native apps. This helps with the appearance of motion in movies.

7.3
Motion
Variable Refresh Rate
Native Refresh Rate
60 Hz
Variable Refresh Rate
Yes
HDMI Forum VRR
Unknown
FreeSync
Yes
G-SYNC Compatible
No
4k VRR Maximum
60 Hz
4k VRR Minimum
40 Hz
1080p VRR Maximum
60 Hz
1080p VRR Minimum
40 Hz
1440p VRR Maximum
60 Hz
1440p VRR Minimum
40 Hz
VRR Supported Connectors
HDMI

Like the Vizio M7 Series Quantum 2021, the Vizio MQ6 features support for FreeSync variable refresh rate technology. As the Xbox Series X supports both HDMI Forum VRR and FreeSync, there's no way to tell which one is active and if the TV supports HDMI Forum VRR.

Inputs
9.6
Inputs
Input Lag
1080p @ 60Hz
12.3 ms
1080p @ 60Hz Outside Game Mode
69.5 ms
1440p @ 60Hz
11.7 ms
4k @ 60Hz
12.2 ms
4k @ 60Hz + 10-Bit HDR
12.2 ms
4k @ 60Hz @ 4:4:4
12.2 ms
4k @ 60Hz Outside Game Mode
69.2 ms
4k @ 60Hz With Interpolation
N/A
8k @ 60Hz
N/A
1080p @ 120Hz
N/A
1440p @ 120Hz
N/A
4k @ 120Hz
N/A
1080p with Variable Refresh Rate
11.9 ms
1440p with VRR
11.9 ms
4k with VRR
12.2 ms
8k with VRR
N/A

The Vizio M65Q6-J09 has incredible low input lag as long as you enable Game Low Latency. The input lag doesn't change with VRR enabled or when gaming with 4k or 1080p content, which is great.

8.3
Inputs
Supported Resolutions
1080p @ 60Hz @ 4:4:4
Yes
1080p @ 120Hz
No
1440p @ 60Hz
Yes (forced resolution required)
1440p @ 120Hz
No
4k @ 60Hz
Yes
4k @ 60Hz @ 4:4:4
Yes
4k @ 120Hz
No
8k @ 30Hz or 24Hz
No
8k @ 60Hz
No

This TV supports all common resolutions at 60Hz, like 1080p, 1440p, and 4k. It also displays chroma 4:4:4 with all of its supported resolutions, which helps with text clarity when using it as a PC monitor. You need to create a custom resolution from your PC for 1440p signals, but that doesn't affect the picture quality. As with some other HDMI 2.0 TVs, it accepts 1080p and 1440p signals at 120Hz, but it skips frames.

Inputs
Advanced Console Compatibility
Auto Low Latency Mode (ALLM)
Yes
PS5, 4k @ 120Hz + HDR
No
PS5, 4k @ 120Hz
No
PS5, 4k @ 60Hz + HDR
Yes
PS5, 1440p @ 120Hz
No
PS5, 1080p @ 120Hz
No
PS5, Variable Refresh Rate
PS5 can't do VRR yet
Xbox Series X, 4k @ 120Hz + HDR
No
Xbox Series X, 4k @ 120Hz
No
Xbox Series X, 4k @ 60Hz + HDR
Yes
Xbox Series X, 1440p @ 120Hz
No
Xbox Series X, 1080p @ 120Hz
No
Xbox Series X, Variable Refresh Rate
Yes

As it's limited to a 60Hz panel, it doesn't support any 120Hz signals from the PS5 or Xbox Series X. There's an Auto Low Latency Mode that switches the TV into Game Mode when you launch a game from a compatible device.

Inputs
Inputs Specifications
HDR10
Yes
HDR10+
Yes
Dolby Vision
Yes
HLG
Yes
HDMI 2.0 Full Bandwidth
Yes (HDMI 1,2,3)
HDMI 2.1 Class Bandwidth
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)

Vizio advertises the TV as having three HDMI 2.1 inputs, but it doesn't support any signal above the HDMI 2.0 bandwidth, like 4k @ 60Hz with chroma 4:4:4 and 10-bit color depth.

Inputs
Input Photos
Inputs
Total Inputs
HDMI 3
USB 1
Digital Optical Audio Out 1
Analog Audio Out 3.5mm 0
Analog Audio Out RCA 1
Component In 0
Composite In 1
Tuner (Cable/Ant) 1
Ethernet 1
DisplayPort 0
IR In 0
SD/SDHC 0

The Vizio MQ6 doesn't have an audio analog output like the Vizio M7 Series Quantum 2021, but it has composite inputs which is great if you have a DVD player or old gaming consoles.

Inputs
Audio Passthrough
ARC
Yes (HDMI 1)
eARC support
Yes
Dolby Atmos via TrueHD via eARC
Yes
DTS:X via DTS-HD MA via eARC
Yes
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

The Vizio M6 Series Quantum has eARC support, allowing you to send high-quality audio to a compatible receiver using a single HDMI connection. It's advertised to support DTS:X audio formats via eARC, but we couldn't get it to work with our receiver as it would play the DTS-HD Master Audio format. It seems like this is an issue on our end, so we left the DTS:X as 'Yes', but if you experience the same thing, let us know.

Sound Quality
6.3
Sound Quality
Frequency Response
Low-Frequency Extension
119.87 Hz
Std. Dev. @ 70
3.55 dB
Std. Dev. @ 80
3.47 dB
Std. Dev. @ Max
5.25 dB
Max
86.2 dB SPL
Dynamic Range Compression
4.34 dB

The Vizio M65Q6-J09 has a mediocre frequency response. It has a fairly well-balanced sound profile for dialogue, but it doesn't get very loud. It also doesn't produce much bass, if at all.

6.5
Sound Quality
Distortion
Weighted THD @ 80
0.240
Weighted THD @ Max
0.628
IMD @ 80
3.67%
IMD @ Max
20.80%

The distortion performance is okay. There isn't much distortion at moderate listening levels, but it increases a lot at its max volume. However, not everyone may hear it and it depends on the content.

Smart Features
7.0
Smart Features
Interface
Smart OS SmartCast
Version 1.50
Ease of Use
Easy
Smoothness
Average
Time Taken to Select YouTube
3 s
Time Taken to Change Backlight
3 s
Advanced Options
Many

The Vizio SmartCast is user-friendly, but it's not as advanced as some other smart systems. Menu navigation also feels a bit choppy, and even though we didn't experience any bugs during testing, Vizio TVs are known to be buggy.

0
Smart Features
Ad-Free
Ads
Yes
Opt-out
No
Suggested Content in Home
Yes
Opt-out of Suggested Content
No

There are ads in the home screen, which isn't something we noticed with the Vizio M7 Series Quantum 2021. Sadly, there's no way to disable them.

6.5
Smart Features
Apps and Features
App Selection
Great
App Smoothness
Average
Cast Capable
Yes
USB Drive Playback
Yes
USB Drive HDR Playback
Yes
HDR in Netflix
Yes
HDR in YouTube
Yes

The SmartCast system comes with a great selection of pre-installed, web-based apps, but there's no app store so you can't download any extra apps. You can cast almost anything you want from your phone using the Google Chromecast and Apple AirPlay 2 support.

6.5
Smart Features
Remote
Size
Medium
Voice Control
Search, Some Other Features
CEC Menu Control
Yes
Other Smart Features
No
Remote App Vizio SmartCast Mobile

The Vizio M65Q6-J09 comes with the new Vizio remote that features a basic design with shortcut buttons to popular streaming devices. It also has a mic for voice control, and you can ask it to change inputs and open apps, but it can't search for specific content in apps or change certain settings.

Smart Features
TV Controls

There's a single button on the bottom left side to turn the TV On/Off and change inputs.

Smart Features
In The Box

  • Remote control (with 2x AAA batteries)
  • User guides

Smart Features
Misc
Power Consumption 60 W
Power Consumption (Max) 132 W
Firmware 1.20.18.1-7

Differences Between Sizes And Variants

We tested the 65 Inch Vizio MQ6, and for the most part, we expect our review to be valid for the 43 inch (M43Q6), 50 inch (M50Q6), 55 inch (M55Q6), 70 inch (M70Q6), and 75 inch (M75Q6) variants. The MQ6 is part of the M Series lineup which features the Vizio M7 Series Quantum 2021, but the two TVs are different.

Size Model Code VESA Mount Size
43" M43Q6-J04 200x100
50" M50Q6-J01 200x200
55" M55Q6-J01 300x200
65" M65Q6-J09 400x200
70" M70Q6-J03  400x200
75" M75Q-J03 400x200

All sizes should have a VA panel, but if someone comes across a different type of panel or if their Vizio MQ6 doesn't correspond to our review, let us know and we'll update the review. Note that some tests, like gray uniformity, may vary between units.

You can see the label for our unit here.

Compared To Other TVs

The Vizio MQ6 is a decent lower-mid-range TV that has more gaming features than other budget-friendly options. However, there isn't anything special about its picture quality as it lacks a local dimming feature and doesn't get bright. There are better options that offer more value, like the Hisense U6G, especially if you don't need the VRR support.

Also see our recommendations for the best budget TVs, the best gaming TVs, and the best 4k TVs.

Vizio M7 Series Quantum 2021
50" 55" 58" 65" 70" 75"

The Vizio M7 Series Quantum 2021 and the Vizio M6 Series Quantum 2021 are both part of the same M Series lineup, but the M7 has a few more features that make it better. The M7 has a local dimming feature, which the M6 doesn't, so it displays deeper blacks. The M7 also gets brighter in SDR, but not by much. The M7 has a backlight strobing feature, which the M6 doesn't have, but this is only beneficial to gamers. Other than these differences, both TVs are very similar.

LG C1 OLED
48" 55" 65" 77" 83"

The LG C1 OLED and the Vizio M6 Series Quantum 2021 are very different TVs. The LG is a high-end TV with an OLED panel with a near-infinite contrast ratio, perfect black uniformity, and wide viewing angles. It has HDMI 2.1 inputs, allowing you to play 4k games up to 120 fps, while the Vizio has HDMI 2.0 inputs, meaning you can play 4k games up to 60 fps, and it's also limited to a 60Hz panel. The Vizio is an entry-level LED model, so the only advantage over the LG is that it doesn't suffer from the risk of permanent like an OLED.

Hisense U6G
50" 55" 65" 75"

The Hisense U6G is much better overall than the Vizio M6 Series Quantum 2021. The Hisense delivers better picture quality because it has a local dimming feature, which the Vizio doesn't have, and it gets significantly brighter in HDR and SDR. The Hisense doesn't show any upscaling artifacts with low-resolution content like the Vizio. The Android TV app store has a massive selection of apps available, and you can't download any extra apps on the Vizio. On the other hand, the Vizio has FreeSync VRR support, which the Hisense doesn't.

Vizio V5 Series 2021
43" 50" 55" 58" 65" 70" 75" 85"

The Vizio M6 Series Quantum 2021 and the Vizio V5 Series 2021 are both okay TVs. The M6 is higher up in the Vizio lineup than the V5, so it has a few more features like a wide color gamut and VRR support. Picture quality is similar as they both have high contrast, lack local dimming, don't get bright, and have good reflection handling. Choosing one over the other comes down to whether or not you need the extra gaming features on the M6.

TCL 5 Series/S535 2020 QLED
50" 55" 65" 75"

The TCL 5 Series/S535 2020 QLED is better overall than the Vizio M6 Series Quantum 2021. The TCL has a local dimming feature to improve the picture quality in dark scenes, which the Vizio doesn't have. The TCL also does a better job at upscaling lower-resolution content, and the built-in Roku has an app store, unlike the Vizio SmartCast system. Motion also looks a lot smoother on the TCL thanks to the quicker response time. One of the few advantages the Vizio has over the TCL is that it supports FreeSync, which the TCL doesn't.

Samsung AU8000
43" 50" 55" 60" 65" 70" 75" 85"

The Samsung AU8000 and the Vizio M6 Series Quantum 2021 are both decent TVs. The Vizio uses quantum dot technology, so it displays a much wider color gamut, and it also has VRR support, which the Samsung doesn't have. The Vizio also has much better contrast, but this can vary between units. The Samsung does a better job at upscaling lower-resolution content, like from cable boxes, and the built-in Tizen OS is a better smart platform than the Vizio SmartCast system.

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