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  1. Table of Contents
  2. Intro
  3. Design
    1. Stand
    2. Back
    3. Borders
    4. Thickness
    5. Temperature
    6. Build Quality
  4. Picture Quality
    1. Contrast
    2. Local Dimming
    3. SDR Peak Brightness
    4. HDR Peak Brightness
    5. Gray Uniformity
    6. Viewing Angle
    7. Black Uniformity
    8. Gradient
    9. Pre Calibration
    10. Post Calibration
    11. 480p Input
    12. 720p Input
    13. 1080p Input
    14. 4k Input
    15. Color Gamut
    16. Color Volume
    17. Image Retention
    18. Reflections
    19. 3D
    20. Pixels
  5. Motion
    1. Motion Blur
    2. Image Flicker
    3. 24p Playback
    4. Motion Interpolation
  6. Inputs
    1. Input Lag
    2. Supported Resolutions
    3. Side Inputs
    4. Rear Inputs
    5. Total Inputs
    6. Inputs Specifications
  7. Sound Quality
    1. Frequency Response
    2. Distortion
  8. Smart Features
    1. Interface
    2. Ads
    3. Apps and Features
    4. Remote
    5. Remote App
    6. TV Controls
    7. In The Box
    8. Misc
  9. Sizes and Variants
  10. Compared
  11. Conclusion
  12. Q&A
Reviewed on Jun 09, 2017 , Ian Cumming, Mehdi Azzabi, Eric Bousquet, Martin Leduc

Vizio M Series XLED 2017
TV REVIEW

Usage Ratings - Version 1.1
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Test Benches:

  • 1.1: Summer 2017
  • 1.0: Winter 2015
  • 0.9: Winter 2014
  • 0.8: Winter 2013
7.6 Mixed Usage
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What it is General purpose. The TV will be used for a variety of content and usages. Movies at night, TV shows during the day, video games from time to time, etc.
Score components:
Recommended if under (USD)
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What it is: Maximum price to be a better value than its competitors.
How to use it: This product is the best choice in its range if you can find it below this price.
Automatically calculated every hour based on the scores and prices of all other products we've tested.
: $1,080
Value for price beaten by
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What it is: Product with the best value in this price range
Other best choice in a cheaper price range
Other best choice in a pricier price range
Automatically updated every hour based on the scores and prices of all other products we've tested.
: Sony X850E
7.8 Movies
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What it is Movies in the dark. The TV will be used for watching movies in a controlled environment, directly in front, in a home theater way. Mostly only high quality content, like Blu-rays, UHD Blu-rays, streaming and a little bit of HDR.
Score components:
7.4 TV Shows
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What it is TV Shows in a bright living room. The TV will be used in to watch TV shows, in a bright room during the day, from multiple viewing positions at different angles. The content watched has an average quality: cable, streaming, SD channels, etc.
Score components:
7.4 Sports
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What it is Sports in a living room. The TV will be used to watch sports during the day, like football or hockey. Usually watched with a group, so from multiple viewing position.
Score components:
8.1 Video Games
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What it is Video games. The TV will be used to play video games, directly in front, in a controlled light environment. Usually fast games, like online FPS, where motion blur and input lag is important.
7.7 HDR Movies
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What it is HDR Movies and TV shows. The TV will be used to watch 4k UHD HDR content, with a wide color gamut and a high peak brightness. Either via UHD Blu-rays or HDR streaming.
7.9 HDR Gaming
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What it is HDR Gaming. The TV will be used to play HDR video games using consoles that support it or on current generation gaming PCs. Xbox One S, PS4 Pro, GTX 10 series and AMD RX series graphics cards.
7.3 PC Monitor
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What it is PC Monitor. The TV will be used as a PC monitor, from 2-3 feet away, either for productivity purposes or gaming. Sharp text is important, as well as a high resolution.
Type : LED
Resolution : 4k
Refresh Rate : 60 Hz

The Vizio M Series 2017 is a good 4k UHD LED TV that works best in a dark room. It produces deep and uniform blacks, and its great handling of motion and good input lag are a boon for gaming. Its local dimming feature isn't the best, but it still enhances the depth of the picture a good amount. Unfortunately, it isn't the best at handling reflections, and its viewing angle is quite narrow, making it less suitable for bright, wide living rooms.

Test Results
Design 7.5
Picture Quality 7.6
Motion 7.3
Inputs 7.7
Sound Quality 6.4
Smart Features 6.8
Pros
  • Great blacks
  • Low motion blur
  • Better than average local dimming
Cons
  • Image quality deteriorates at an angle
  • Handling of reflections is below average
  • Lacks a TV tuner
Update 8/10/2017: Converted to Test Bench 1.1. Learn more about our new versioned test bench system here.

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7.5

Design

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Score components: Subjectively assigned
Vizio M Series 2017 Design Picture
Curved : No

The design of the 2017 Vizio M Series is almost identical to the 2016 model. It has the same wide stand which looks quite good but may be difficult to fit on some tables. The borders are a bit thicker than average, but it still looks good overall and is a step up in design from the E Series 2017.  

Stand
Vizio M Series 2017 Stand Picture

The stand is identical to the 2016 model and almost as wide as the TV. It supports the TV well but isn't quite as stable as some other TVs which use stronger or thicker materials.

Footprint of the 65" TV stand: 10.9" x 51.7"

Back
Vizio M Series 2017 Back Picture
Wall Mount : Vesa 400x400

The rear of the TV is quite basic but all of the inputs are accessible if placed close to a wall.

Borders
Vizio M Series 2017 Borders Picture
Borders : 0.71" (1.8 cm)

The borders are a bit thicker than average, but still look quite good with the metal side. The rest of the border is plastic.

Thickness
Vizio M Series 2017 Thickness Picture
Max Thickness : 2.56" (6.5 cm)

The thickness is exactly the same as the M Series 2016. It is a bit thicker than average, so will stick out somewhat if mounted on a wall.

Temperature
Vizio M Series 2017 Temperature picture
Maximum Temperature
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What it is: The peak temperature found on the TV.
When it matters: If the TV is placed in an enclosed space.
Good value: <35°C
Noticeable difference: 5°C
:
37 °C
Average Temperature
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What it is: The average temperature measured on the TV.
When it matters: If the TV is placed in an enclosed space.
Good value: <35°C
Noticeable difference: 5°C
:
34 °C

The TV runs fairly cool, never getting more than slightly warm to the touch. The whole bottom edge is a big vent and there are multiple vents along the back. The heat is fairly even across the screen due to its full array backlight.

7.0 Build Quality
Vizio M Series 2017 Build quality picture

The build quality is a step up from the slightly lower end E Series 2017. The TV is still almost completely made of plastic, but the metal edges on the border is a nice touch.

7.6

Picture Quality

 The Vizio M Series 2017 LED TV has a good picture quality. Both the excellent contrast ratio and black uniformity make this TV a great choice for a dark room since it can display deep blacks without issues. In a brighter room, it will still perform okay with reflections, but if you have a very bright lamp or a sunny window straight on, it may have some difficulty fighting the glare. The gray uniformity is average but the dirty screen effect is not too problematic, so it is a good TV for watching sports like hockey or football. The only downside is that if you watch sports with a lot of friends, those sitting off center will have a worse picture quality since this TV has a poor viewing angle. Lastly, HDR on the M Series 2017 looks great. It has a good combination of wide color gamut, local dimming, and high HDR pick brightness, making HDR movies and games look very good and the difference between SDR and HDR is easily noticeable. 

9.0 Contrast
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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:
Vizio M Series 2017 Checkerboard Picture
Native Contrast
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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
:
5606 : 1
Contrast with local dimming
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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
:
5861 : 1

The contrast ratio is excellent on the 2017 M Series, even better than last year's M Series 2016. This high contrast ratio can provide excellent dark scenes performance with deep blacks, especially when the TV is set in a dark room.

When the local dimming is turned on, the contrast ratio goes up a little bit, but not by that much. This is a sign that the local dimming feature on the 2017 M Series is not as good as seen on other higher end LED TV, like the Sony X900E.

5.5 Local Dimming
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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
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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.
:
Yes
Backlight
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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 TVs have more uniform blacks than some full-array TVs.
:
Full-Array

The local dimming feature on the 2017 M Series is not as efficient as that on the M Series 2016 since it has less dimming zones, but it still procures some benefit, as seen on our contrast ratio test and also looking at our black uniformity picture. While turned on, the local dimming helps to produce deeper blacks, especially if the TV is set in a dark room.

On the downside, like both the M Series and P Series 2016, the local dimming darkens the moving highlight too much. This is more visible when the highlight moves to a different dimming zone, and since the zones are even bigger than on the 2016 M Series, this is even more obvious.

7.5 SDR Peak Brightness
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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 Peak Brightness
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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.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
316 cd/m2
SDR Peak 2% Window
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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 TV 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
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
178 cd/m2
SDR Peak 10% Window
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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 TV 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
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
272 cd/m2
SDR Peak 25% Window
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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 TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
269 cd/m2
SDR Peak 50% Window
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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 TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
302 cd/m2
SDR Peak 100% Window
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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 TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
321 cd/m2
SDR Sustained 2% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright highlights, persistent during a scene.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
178 cd/m2
SDR Sustained 10% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright objects, persistent during a scene.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
270 cd/m2
SDR Sustained 25% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
268 cd/m2
SDR Sustained 50% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
301 cd/m2
SDR Sustained 100% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
320 cd/m2
SDR ABL
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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
Good value: <0.07
Noticeable difference: 0.01
:
0.035

Good SDR peak brightness. The TV's local dimming dims highlights in dark scenes, as shown by our smaller window tests, which is not a good thing. This is the opposite of its HDR behavior, which brightens the small windows. The real scene brightness is close to the best case, but even it isn't very bright. This local dimming behavior is similar to the M Series 2016, but is a little better because the small windows aren't dimmed as much. A plot of brightness over time is shown here.

7.1 HDR Peak Brightness
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What it is: How bright the screen can get. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright living rooms; bright objects; HDR content.
HDR Real Scene Peak Brightness
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What it is: The maximum luminosity the TV can obtain while playing a movie or while watching a TV show. This scene was selected to represent a more realistic movie condition. All measurement are made with the TV set to be as bright as possible, but with a 6500k white. Measured with local dimming, max backlight and over HDR signal. Scene: here.
When it matters: When watching movies or watching TV show in HDR.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
407 cd/m2
HDR Peak 2% Window
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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 TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright highlights, present on screen for a short time; especially for HDR content.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
628 cd/m2
HDR Peak 10% Window
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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 TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright objects, present on screen for a short time; especially for HDR content.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
793 cd/m2
HDR Peak 25% Window
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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 TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms; bright objects in HDR video.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
774 cd/m2
HDR Peak 50% Window
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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 TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
431 cd/m2
HDR Peak 100% Window
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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 TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
353 cd/m2
HDR Sustained 2% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright highlights, persistent throughout a scene; especially for HDR content.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
615 cd/m2
HDR Sustained 10% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright objects, persistent throughout a scene; especially for HDR content.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
774 cd/m2
HDR Sustained 25% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms; bright objects in HDR video.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
760 cd/m2
HDR Sustained 50% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
425 cd/m2
HDR Sustained 100% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
350 cd/m2
HDR ABL
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What it is: The standard deviation of the HDR sustained brightness, after linearizing for noticeable differences in luminosity
When it matters: HDR content with large bright areas, such as HDR gaming
Good value: <0.07
Noticeable difference: 0.01
:
0.05

Decent HDR peak brightness, though not as bright as high end TVs. The TV's local dimming effectively brightens highlights in dark scenes, as shown by our smaller window tests, yet its worst case brightness is still fairly bright. A plot of brightness over time is shown here. This brightness is a massive improvement over the M Series 2016, and though it is similar overall to the P Series 2016 the local dimming behavior is very different; the P Series dimmed the smaller windows rather than brightening them.

If you find HDR content too dim you can lower the TV's 'Gamma' setting. This doesn't affect bright white but will brighten everything else.

7.2 Gray Uniformity
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What it is: Evenness of colors onscreen (not just gray).
When it matters: Solid colors. Sports, panning shots.
Score components:
Vizio M Series 2017 50% Uniformity Picture
50% Std. Dev.
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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%
:
4.099 %
50% DSE
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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%
:
0.184 %
Vizio M Series 2017 5% Uniformity Picture
5% Std. Dev.
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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%
:
0.938 %
5% DSE
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What it is: High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Dark scenes.
Good value: < 0.116%
:
0.109 %

The gray uniformity is above average for this Vizio TV and is in the same ballpark as the 2016 M Series. Most of the issues come from the standard deviation being quite high and this is caused mostly from the sides and corners of the TV being darker than the rest of the screen. The 50% dirty screen effect test results is a bit higher than our good value number (0.165%), but dirty screen effect is minimal and is not too distracting.

When it comes to the 5% gray uniformity test, not many uniformity issues can be noticed besides a bit of a brighter edge at the bottom, but this is really not a problem at all since it is not noticeable while watching normal content.

4.2 Viewing Angle
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What it is: Color accuracy when viewed from the side.
When it matters: Large living rooms with multiple viewing positions.
Score components:
LCD Type
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What it is: Type of LCD technology used by the TV.
When it matters: Different technologies have different viewing angle properties.
Good value: IPS maintains good color accuracy at an angle, but has a poor contrast ratio from in front. VA has great picture quality in front, but loses saturation at an angle.
:
VA
Vizio M Series 2017 Color Shift Picture
Color Shift
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What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters: Large living rooms with multiple viewing positions.
Good value: > 50°
Noticeable difference: 10°
:
18 °
Vizio M Series 2017 Brightness Picture
Brightness
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What it is: Angle where the brightness drops to 50% of the brightness directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters: Large living rooms with multiple viewing positions.
Good value: > 50°
Noticeable difference: 10°
:
30 °
Vizio M Series 2017 Black Level Picture
Black Level
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What it is: Angle where the black level drops to 50% of the black level directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters: Large living rooms with multiple viewing positions.
Good value: > 50°
Noticeable difference: 10°
:
18 °

Bad viewing angle. Blacks turn grey and colors shift when the TV is viewed from even a small angle, while the brightness decreases at a more moderate angle. This is fairly typical of a VA panel, and is very similar to the M Series 2016.

8.7 Black Uniformity
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What it is: Evenness of blacks.
When it matters: Dark scenes viewed in a dark room.
Score components:
Vizio M Series 2017 Native Black Uniformity Picture
Native Std. Dev.
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What it is: Average of the squared difference of the blacks.
When it matters: Dark scenes viewed in a dark room.
Good value: < 1%
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.
:
0.625 %
Vizio M Series 2017 Black Uniformity Picture with Local Dimming
Std. Dev. w/ L.D.
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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: < 1%
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.
:
0.928 %

The black uniformity of the 2017 M Series is excellent and it is an upgrade when compared to the 2016 models. Besides a bit of clouding in the bottom right and the top left corners, the rest of the screen is very even, which is great especially for dark scenes in movies.

With local dimming turned on, the uniformity is a bit worse since there is blooming around the middle white cross while the rest of the screen is mostly black. Note that in this test, we don't measure the black level of the screen, but rather the whole uniformity of the black. So even if the overall picture taken for the black uniformity with local dimming seems to have deeper black, the central blooming affects the final result.

7.7 Gradient
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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
Vizio M Series 2017 Gradient Picture
Color Depth
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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 UHD Blu-ray players. Won't matter for cable TV, regular Blu-ray movies, video game consoles or content displayed from a Windows PC. Those are limited to 8-bit color.
Good value: 10-bit.
Noticeable difference: 1 bit.
:
10 Bit

The Vizio M Series 2017 performs similarly as the 2016 version with the exception that we did not notice any banding normally seen on 8-bit panel. Comparing to other 10-bit TVs tested before, there are more issues is the shades, even in the lighter color, which usually are free of banding. Luckily, we did not notice too many issues while watching normal content during the review process.

8.4 Pre Calibration
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What it is: TV's color accuracy before a full calibration. Only the picture mode, color temperature, and backlight level were changed.
When it matters: All video on an uncalibrated TV. This represents most people's use cases.
Score components:
Vizio M Series 2017 Pre Calibration Picture Vizio M Series 2017 Pre Gamma Curve Picture Vizio M Series 2017 Pre Color Picture
White Balance dE
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What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all video.
Good value: < 3
Noticeable difference: 1
:
2.14
Color dE
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What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
2.02
Gamma
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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
:
2.2

Out of the box, the Vizio M Series 2017 has a great accuracy. The white balance dE is under 3, which very good since most people would not even notice it. The gamma is on our 2.2 target, but the overall gamma curve has some imperfections, but once again this would not be very problematic.

When it comes to the color accuracy, once again, the color dE is under 3, which is very good and most people could use the TV as-is and would not notice the little imperfections. Most of the issues here are because of the white points being a bit off and as a result of this, the overall dE of all the other colors are affected.

9.6 Post Calibration
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What it is: TV's color accuracy after a full calibration with a spectrophotometer.
When it matters: All video on a TV that has been professionally calibrated. This isn't that useful, because most TVs can achieve a pretty good calibration if you spend enough time on them.
Score components:
Vizio M Series 2017 Post Calibration Picture Vizio M Series 2017 Post Gamma Curve Picture Vizio M Series 2017 Post Color Picture
White Balance dE
Show Help
What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all videos.
Good value: < 3
Noticeable difference: 1
:
0.13
Color dE
Show Help
What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
1.08
Gamma
Show Help
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
:
2.2

The calibration of the Vizio M Series 2017 was very easy to do and the whole process did not take very long. The 2 and 10 points white balance calibration is fairly responsive. The use of the smartcast remote app is a big plus when it comes to the calibration and it makes the whole process much faster.

After calibration the white balance dE is only of 0.13, which is almost perfect. With the color space management system provided by this Vizio TV, the color dE was cut in half, which is a really good result. The blue imperfections are very minimal and will not affect normal content.

Looking at the gamma, the curve was flattened to track more closely our target, which in the end is excellent.

Note: At the beginning of the calibration process, we encountered a bug that makes the 10 point white balance calibration inaccessible. A firmware update occurred during the review process and seems to have taken care of this bug and as a result, we could finalize the calibration process without any problems.

You can see our calibration settings here

7.0 480p Input
Show Help
What it is: Quality of a 480p input.
When it matters: Standard definition TV, DVDs.
Score components: Subjectively assigned
Vizio M Series 2017 480p Picture

Low-quality content such as DVDs look a bit worse than most other TVs. Some straight lines appear choppy.

7.0 720p Input
Show Help
What it is: Quality of a 720p input.
When it matters: HD channels, some streaming videos.
Score components: Subjectively assigned
Vizio M Series 2017 720p Picture

Upscaling of 720p content such as cable is a bit softer than most other TVs.

9.0 1080p Input
Show Help
What it is: Quality of a 1080p input.
When it matters: Blu-rays, streaming video, video files, video games.
Score components: Subjectively assigned
Vizio M Series 2017 1080p Picture

Upscaling of 1080p content such as Blu-rays is good. Details remain clear and the image is sharp.

10 4k Input
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What it is: Quality of a 4k UHD input.
When it matters: Streaming video, UHD Blu-rays, some PCs.
Score components: Subjectively assigned
Vizio M Series 2017 4k Picture

No issues can be seen with native 4k content.

7.6 Color Gamut
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What it is: How many colors the TV can display.
When it matters: HDR content. Includes some streaming videos and UHD Blu-rays.
Score components:
Wide Color Gamut
Show Help
What it is: Whether the TV has an option to enable wide color gamuts.
When it matters: HDR content. Includes some streaming videos and UHD Blu-rays.
:
Yes
Vizio M Series 2017 Color Gamut DCI-P3 Picture
DCI P3 xy
Show Help
What it is: Coverage of the DCI P3 colorspace on CIE 1931 xy.
When it matters: DCI P3 content. Includes HDR, UHD Blu-rays.
Good value: > 90%
Noticeable difference: 5%
:
81.93 %
DCI P3 uv
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What it is: Coverage of the DCI P3 colorspace on CIE 1976 u' v'.
When it matters: DCI P3 content. Includes HDR, UHD Blu-rays.
Good value: > 90%
Noticeable difference: 5%
:
88.86 %
Vizio M Series 2017 Color Gamut Rec.2020 Picture
Rec 2020 xy
Show Help
What it is: Coverage of the Rec.2020 colorspace on CIE 1931 xy.
When it matters: Rec.2020 content. Includes HDR, UHD Blu-rays.
Good value: > 90%
Noticeable difference: 5%
:
61.41 %
Rec 2020 uv
Show Help
What it is: Coverage of the Rec.2020 colorspace on CIE 1976 u' v'.
When it matters: Rec.2020 content. Includes HDR, UHD Blu-rays.
Good value: > 90%
Noticeable difference: 5%
:
70.01 %
Vizio M Series 2017 EOTF

Wide color gamut, much wider than the M Series 2016 and very similar to the P Series 2016, but not as wide as many other high end TVs. Saturated red, blue and green all fall short of their targets, with green being the worst which is typical for modern TVs. The accuracy of the colors the TV can produce is not very good, as it severely undersaturates the lighter shades.

The TV's HDR EOTF most closely follows the PQ curve when the 'Gamma' setting is 2.4. This isn't actually gamma 2.4 as gamma is meaningless in HDR, but the 'Gamma' setting in HDR does raise and lower the EOTF. At the default 'Gamma' of 2.2 everything is brightened too much, as seen in this plot. However because HDR content is mastered for a dark room, you should lower the gamma (making the picture brighter) to suit the brightness of your room. The above two EOTFs were measured in the accurate 'Calibrated Dark' picture mode; the EOTF for the Computer picture mode with 'Gamma' 2.4 is here, and is identical to that of 'Calibrated Dark.

6.0 Color Volume
Show Help
What it is: How many colors a TV can display at different luminosity levels.
When it matters: HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
Vizio M Series 2017 P3 Color Volume ITP Picture
Normalized DCI P3 Coverage ITP
Show Help
What it is: How much of the DCI-P3 colorspace a TV can display at different luminosity levels
When it matters: HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
Good value: 80%
Noticeable difference: 5%
:
77.9 %
10,000 cd/m² DCI P3 Coverage ITP
Show Help
What it is: How much of the DCI-P3 colorspace a TV can display at different luminosity levels when compared to an ideal 10,000 nit TV
When it matters: HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
:
40.7 %
Vizio M Series 2017 2020 Color Volume ITP Picture
Normalized Rec 2020 Coverage ITP
Show Help
What it is: How much of the Rec. 2020 colorspace a TV can display at different luminosity levels
When it matters: HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
Good value: 80 %
Noticeable difference: 5 %
:
43.1 %
10,000 cd/m² Rec 2020 Coverage ITP
Show Help
What it is: How much of the Rec 2020 colorspace a TV can display at different luminosity levels when compared to an ideal 10,000 nit TV
When it matters: HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
:
22.6 %

Mediocre color volume. The P3 volume is good, only really limited by the TV's color gamut and black level. The test was done with local dimming enabled, but still the black level never reached true black on our black-with-white-border slide. The P3 volume is fairly similar to that of the P Series 2016.

Looking at the Rec 2020 volume, fully saturated blues and reds are nowhere near as bright as they should be, blues especially. The E Series 2017 has a similar problem with saturated blue, but not red, and the M Series 2016 had no such issue.

10 Image Retention
Show Help
What it is: How much a static image is retained on a TV screen after a certain amount of time.
When it matters: When watching TV show, playing video games or when using your TV as a PC monitor.
Vizio M Series 2017 Image Retention Picture
IR after 0 min recovery
Show Help
What it is: Image retention measured right after the static image exposure, without recovery time.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0 %
IR after 2 min recovery
Show Help
What it is: Image retention measured after a recovery time of 2 minutes.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect
Noticeable difference: 0.015%
:
0 %
IR after 4 min recovery
Show Help
What it is: Image retention measured after a recovery time of 4 minutes.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0 %
IR after 6 min recovery
Show Help
What it is: Image retention measured after a recovery time of 6 minutes.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0 %
IR after 8 min recovery
Show Help
What it is: Image retention measured after a recovery time of 8 minutes.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0 %
IR after 10 min recovery
Show Help
What it is: Image retention measured after a recovery time of 10 minutes.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0 %

The Vizio M Series 2017 does not have any image retention. Looking at our test picture taken right after the 10 minutes burn-in scene, no retention could be seen with the naked eye and detected by the computer analysis. This is a perfect result and it is in line with other VA panel TVs.

8.0 Reflections
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What it is: How much light is reflected by the TV.
When it matters: Bright rooms.
Score components: Subjectively assigned
Vizio M Series 2017 Reflections Picture Vizio M Series 2017 Bright Room Picture
Reflection
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What it is: Ratio of ambient light reflected by the TV.
When it matters: Ambient light in the room.
Good value: < 1%
Noticeable difference: 0.5%
:
2.0 %
Screen Finish
Show Help
What it is: Type of coating on the screen.
When it matters: Bright objects in the direct reflection path (for example, opposite the TV).
Good value: Glossy is good for ambient light, but not for direct reflections.
:
Semi-gloss

The M Series 2017 is good at handling reflections. The semi-gloss finish diffuses reflections across the screen, reducing their intensity. This is very similar to the 2016 Vizio M Series and should be fine for an average room. In a bright room, reflections may be distracting though.

0 3D
Show Help
What it is: Optional 3D video capability on TV.
When it matters: 3D movies and videos.
Score components: Subjectively assigned
3D
Show Help
What it is: If it can display a picture in 3D.
When it matters: 3D movies & videos.
:
No
3D Type
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What it is: The 3D technology used by the TV.
When it matters: 3D movies & videos.
Good value: Active have better resolution, but flickers. Passive is more comfortable, but loses half the vertical resolution.
:
No
2D to 3D
Show Help
What it is: Feature that converts 2D content to 3D.
When it matters: If you want to watch 2D content in 3D. Note that the quality is not as good as that of native 3D.
:
No

The Vizio M Series 2017 is not compatible with 3D.

Pixels
7.3

Motion

The motion handling of the M Series 2017 is average. It has a good response time, resulting in only a short trail of blur following fast moving objects. It is possible to clear this up significantly by flickering the backlight with the 'Clear Action' setting but this does produce visible flicker. Like the 2016 model, it can play movies from a Blu-ray player smoothly but some judder is present when watching movies from a HTPC or cable. Most people won't notice this though. Unlike the larger sizes of the 2016 model, this TV doesn't have any motion interpolation options. 

7.8 Motion Blur
Show Help
What it is: Amount of blur on fast movement.
When it matters: Sports, video games.
Score components:
Vizio M Series 2017 Motion Blur Picture Vizio M Series 2017 Response Time Chart
80% Response Time
Show Help
What it is: How quickly pixels can reach 80% of a full transition from one color to another.
When it matters: Fast movement.
Good value: < 8 ms
Noticeable difference: 4 ms
:
6.6 ms
100% Response Time
Show Help
What it is: How quickly pixels can fully transition from one color to another.
When it matters: Fast movement.
Good value: < 20 ms
Noticeable difference: 10 ms
:
18.3 ms

The response time of the M Series 2017 is good, which results in great motion blur performance. Only a short trail can be seen following moving objects.

9.2 Image Flicker
Show Help
What it is: Luminosity pattern when displaying images
When it matters: Sports, video games, when TV is used as a PC monitor
Score components:
Vizio M Series 2017 Backlight Picture
PWM Dimming Frequency
Show Help
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.
:
480 Hz
Black Frame Insertion (BFI)
Show Help
What it is: Option to turn screen black between frames
When it matters: Reduces eye tracking blur in sports or video games
Good value: Yes
:
Yes
Vizio M Series 2017 BFI Picture Vizio M Series 2017 BFI Frequency Picture
BFI Frequency
Show Help
What it is: Lowest possible frequency of flickering pattern
When it matters: Reduces eye tracking blur in sports or video games
Good value: 60 Hz
:
60 Hz
BFI In Game Mode
Show Help
What it is: Option to insert black frames when in the best settings for gaming
When it matters: Reducing eye tracking blur for video games
Good value: Yes
:
Yes

The M Series 2017 uses PWM at 480Hz to dim the backlight, starting at 99/100 backlight setting, but at that frequency it isn't really noticeable. Lowering the setting shortens the duty cycle, while amplitude remains constant until very low backlight settings. It is possible to enable 'Clear Action' to reduce the PWM frequency to 60Hz, and this helps to clear-up eye tracking persistence blur significantly, but produces a visible flicker. Note that the BFI option isn't available for HDR content as it reduces the brightness of the screen significantly.

7.1 24p Playback
Show Help
What it is: Whether 24p content can play without any judder.
When it matters: Only 24p content (mostly just movies).
Judder-free 24p
Show Help
What it is: Judder-free movies over 24p signal.
When it matters: Blu-ray and DVD movies; 24 hz PC signal.
:
Yes
Judder-free 24p via 60p
Show Help
What it is: Judder-free movies over 60p signal.
When it matters: Movies from streaming devices (Apple TV, Fire TV, etc.); 60 hz PC signal.
:
No
Judder-free 24p via 60i
Show Help
What it is: Judder-free movies over 60i signal.
When it matters: Movies from cable/satellite boxes.
:
No

Similar to the 2016 M Series, only 24p movies playing from 24p sources like DVD and Blu-ray players are judder free on the M series 2017. Judder is present in 24p movies playing via 60p/60i sources like cable/satellite boxes.

To remove judder from 24p movies playing from 24p sources, simply turn on the 'Pure Cinema' option from the picture setting menu.

0 Motion Interpolation
Show Help
What it is: Also known as 'Soap Opera Effect'. It is an optional feature that increases the frame rate of the video, smoothing movement.
When it matters: If you like the look of smoothed video. Not everyone does.
Motion Interpolation (30 fps)
Show Help
What it is: Whether the TV can take a 30 fps input and heighten the frame rate to at least 60 fps.
When it matters: 30 fps or lower videos. Includes movies, TV shows, some video games.
:
No
Motion Interpolation (60 fps)
Show Help
What it is: Whether the TV can take a 60 fps input and heighten the frame rate to at least 100 fps.
When it matters: 60 fps videos. Includes some video games, some sports channels.
:
No

This TV has a 60Hz panel and is unable to interpolate lower frame rate content. Fans of the soap opera effect may be disappointed. During testing, the option did appear in the 'Smartcast' app but is not selectable, the presence of this option is likely a bug as it doesn't appear on the on-screen menu.

7.7

Inputs

Show Help
Score components:

 The Vizio M 2017 supports nearly all input signals, including HDR. It has low input lag which should be good enough for most people, but competitive gamers may be disappointed. 

7.7 Input Lag
Show Help
What it is: Delay between input and onscreen reaction.
When it matters: Video games; when TV is used as PC monitor.
4k @ 60Hz
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz.
When it matters: Video games and also when TV is used as PC monitor.
Good value: < 40 ms
Noticeable difference: 15 ms
:
38.4 ms
1080p @ 60Hz
Show Help
What it is: Lowest input lag possible on TV with a 1080p @ 60Hz input.
When it matters: Video games and also when TV is used as PC monitor.
Good value: < 40 ms
Noticeable difference: 15 ms
:
40.4 ms
4k @ 60Hz + HDR
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz with HDR.
When it matters: HDR Video games.
Good value: < 40 ms
Noticeable difference: 15 ms
:
38.7 ms
1080p @ 60Hz + HDR
Show Help
What it is: Lowest input lag possible on the TV when displaying 1080p @ 60Hz with HDR.
When it matters: HDR video games from a console outputting a 1080p signal.
Good value: < 40 ms
Noticeable difference: 15 ms
:
40.5 ms
4k @ 60Hz Outside Game Mode
Show Help
What it is: Lowest input lag possible on the TV when displaying 4k @ 60Hz in a fully featured picture mode.
When it matters: For playing video games while retaining access to all features of the TV.
Good value: < 40 ms
Noticeable difference: 15 ms
:
55.0 ms
1080p @ 60Hz Outside Game Mode
Show Help
What it is: Lowest input lag possible on the TV when displaying 1080p @ 60Hz in a fully featured picture mode.
When it matters: For playing video games while retaining access to all features of the TV.
Good value: < 40 ms
Noticeable difference: 15 ms
:
57.1 ms
4k @ 60Hz @ 4:4:4
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz @ 4:4:4.
When it matters: PC Monitor
Good value: < 40 ms
Noticeable difference: 15 ms
:
38.6 ms
1080p @ 60Hz @ 4:4:4
Show Help
What it is: Lowest input lag possible on TV when displaying 1080p @ 60Hz @ 4:4:4
When it matters: PC monitor.
Good value: < 40 ms
Noticeable difference: 15 ms
:
45.8 ms
4k @ 60Hz @ 4:4:4 + 8 bit HDR
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz @ 4:4:4 with HDR enabled at 8 bit
When it matters: PC Monitor with an HDR capable graphic card
Good value: < 40 ms
Noticeable difference: 15 ms
:
38.6 ms
1080p @ 60Hz @ 4:4:4 + HDR
Show Help
What it is: Lowest input lag possible on TV when displaying 1080p @ 60Hz @ 4:4:4 with HDR
When it matters: PC monitor with an HDR capable graphics card
Good value: < 40 ms
Noticeable difference: 15 ms
:
46.0 ms
4k With Interpolation
Show Help
What it is: Lowest input lag for 4k content when the motion interpolation feature is turned on.
When it matters: When you want to play video games with the Soap Opera Effect enabled.
Good value: < 40 ms
Noticeable difference: 15 ms
:
N/A
1080p With Interpolation
Show Help
What it is: Lowest input lag for 1080p content when the motion interpolation feature is turned on.
When it matters: When you want to play video games with the Soap Opera Effect enabled.
Good value: < 40 ms
Noticeable difference: 15 ms
:
N/A
1080p @ 120 Hz
Show Help
What it is: Lowest input lag possible on TV with a 1080p @ 120Hz input.
When it matters: When the TV is used as PC monitor.
Good value: < 40 ms
Noticeable difference: 15 ms
:
N/A

Low input lag, which should be good enough for most people but competitive gamers may be disappointed. Unlike the 2016 M series this TV doesn't have a low latency port, so all ports measured the same for input lag. The picture mode doesn't matter for input lag, only the 'Game Low Latency' toggle matters, which can be activated in any picture mode. This input lag is nearly identical to that of the E Series 2017.

Aside: We measure input lag using the industry standard Leo Bodnar tool, connected to an HDFury Linker and Integral to change the resolution of the signal for the different tests. However when we tested using the Leo Bodnar tool alone, we measured ~29 ms, which is much lower than was measured using the HDFury chain. This is the only TV we've measured where the input lag from the tool was different than the input lag from the whole chain, because the Linker and Integral add less than 0.1 ms of lag each. To confirm our results we tested the input lag several times using the two screen method and TVs whose input lag was already known. All these tests measured an input lag between 40 and 43 ms, confirming our previous result of ~40 ms. This shows that our input lag results are valid for typical sources like game consoles and PCs.

8.0 Supported Resolutions
Show Help
What it is: Different resolutions supported by TV.
When it matters: PC monitor usage.
Score components:
  • 20% 1080p @ 60Hz @ 4:4:4
  • 20% 1080p @ 120Hz
  • 20% 4k @ 30Hz @ 4:4:4
  • 20% 4k @ 60Hz
  • 20% 4k @ 60Hz @ 4:4:4
1080p @ 60Hz @ 4:4:4
Show Help
What it is: Crisp text on 1060p @ 60 hz signal.
When it matters: PC productivity and 60 fps gaming.
:
Yes
1080p @ 120Hz
Show Help
What it is: 120 fps 1080p signal supported.
When it matters: PC gaming.
:
No
4k @ 30Hz @ 4:4:4
Show Help
What it is: Crisp text on 4k @ 30 hz signal.
When it matters: PC productivity and gaming.
:
Yes
4k @ 60Hz
Show Help
What it is: 60 fps 4k signal supported.
When it matters: PC productivity and gaming.
:
Yes
4k @ 60Hz @ 4:4:4
Show Help
What it is: Crisp text on 4k @ 60 hz signal.
When it matters: Productivity and 60 fps gaming in 4k.
:
Yes

Most of the common resolutions are supported, except 120 Hz because this is a 60 Hz panel. 4:4:4 color is only displayed properly in the Computer picture mode. Only HDMI port 1 supports 4k @ 60 Hz @ 4:2:2 or 4:4:4 color, and only when 'Full UHD Color' is enabled for that port.

Side Inputs
Rear Inputs
Total Inputs
HDMI : 4
USB : 2
Digital Optical Audio Out : 1
Analog Audio Out 3.5mm : 0
Analog Audio Out RCA : 1
Component In : 1
Composite In : 0
Tuner (Cable/Ant) : 0
Ethernet : 1
DisplayPort : 0
IR In : 0
SD/SDHC : 0

Like the 2016 model, the Vizio M Series 2017 doesn't have a TV tuner.

Inputs Specifications
HDR10
Show Help
What it is: Standard HDR format.
When it matters: Most common format. All UHD Blu-ray discs are required to have it.
:
Yes
Dolby Vision
Show Help
What it is: Better format, due to its dynamic nature.
When it matters: Dolby Vision mastered content. Current available from streaming services (Netflix, Amazon Video), some Blu-Ray players, the Apple TV 4k and ChromeCast Ultra.
:
Yes
5.1 Passthrough ARC Dolby Digital
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What it is: TV can receive and pass Dolby Digital 5.1 signal to receiver via HDMI ARC.
When it matters: 5.1 audio on DVDs and Blu-rays.
:
Yes
5.1 Passthrough ARC DTS
Show Help
What it is: TV can receive and pass DTS 5.1 signal to receiver via HDMI ARC.
When it matters: 5.1 audio on DVDs and Blu-rays.
:
Yes
5.1 Passthrough Optical Dolby Digital
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What it is: TV can receive and pass Dolby Digital signal to receiver via digital optical.
When it matters: 5.1 audio on DVDs and Blu-rays.
:
Yes
5.1 Passthrough Optical DTS
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What it is: TV can receive and pass DTS signal to receiver via digital optical.
When it matters: 5.1 audio on DVDs and Blu-rays.
:
Yes
HDMI 2.0 Full Bandwith : Yes (HDMI 1)
ARC : Yes (HDMI 1)
USB 3 : No
HDCP 2.2 : Yes (HDMI 1,2,3,4)
CEC : Yes
MHL : No
Variable Analog Audio Out : Yes

Update 07/14/2017: Variable analog audio out is supported, there was an error in the review.

6.4

Sound Quality

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What it is: How well and accurately the audio is reproduced.
When it matters: When a good and accurate sound reproduction is needed.
Score components:

The Vizio M doesn't sound great, so it greatly benefits from being paired with a set of speakers or a sound bar. It's not completely unusable, but it definitely doesn't deliver a very compelling audio experience.

6.3 Frequency Response
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What it is: How accurately the sound level of each frequency is being produced.
When it matters: For a balanced and neutral sound.
Vizio M Series 2017 Frequency Response
Low-Frequency Extension
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What it is: The lowest frequency at which the frequency response reaches -3dB of the target response.
When it matters: Movies, Gaming. Shows how extended the bass is.
Good value: < 60Hz
Noticeable difference: 10Hz
:
142.54 Hz
Std. Dev. @ 70
Show Help
What it is: The amount of deviation (weighted standard deviation) in frequency response measured at 70dB SPL, as compared to a target response that would sound perfectly balanced to most people.
When it matters: Shows the TV's frequency response at quiet listening levels
Good value: < 4 dB
Noticeable difference: 0.5 dB
:
3.49 dB
Std. Dev. @ 80
Show Help
What it is: The amount of deviation (weighted standard deviation) in frequency response measured at 80dB SPL, as compared to a target response that would sound perfectly balanced to most people.
When it matters: Shows the TV's frequency response at moderate listening levels
Good value: < 4 dB
Noticeable difference: 0.5 dB
:
3.6 dB
Std. Dev. @ Max
Show Help
What it is: The amount of deviation (weighted standard deviation) in frequency response measured with the TV at maximum volume, as compared to a target response that would sound perfectly balanced to most people.
When it matters: Shows the TV's frequency response at under maximum load
Good value: < 4 dB
Noticeable difference: 2 dB
:
5.44 dB
Max
Show Help
What it is: Maximum volume reached by the TV at their optimum viewing distance (size dependent)
When it matters: For listening to loud audio.
Good value: > 88 dB
Noticeable difference: 2 dB
:
89.4 dB SPL
Dynamic Range Compression
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What it is: The amount of difference between the TVs frequency response performance at 70dB SPL and Max dB SPL. Too much compression will result in pumping in the sound.
When it matters: When an accurate and free-of-pumping performance is required at higher volumes
Good value: < 3dB
Noticeable difference: 0.5
:
3.75 dB

Below average frequency response. The M Series has a strong emphasis on lower frequencies that causes it to sound muddy and dark. Furthermore, its low-end cut-off is bad, causing the TV to sound very thin.

6.6 Distortion
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What it is: Deformation of an output signal compared to its input, usually clipping, harmonic distortion, or inter-modulation distortion caused by non-linear behavior of the sound system.
When it matters: When a clean, pure and transparent reproduction is desired.
Score components:
Vizio M Series 2017 Total Harmonic Distortion
Weighted THD @ 80
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What it is: The overall amount of harmonic distortion measured at 80dB SPL. To make the score more perceptually relevant, more weight is given to the higher frequencies.
When it matters: How pure the sound is at moderate listening levels.
Good value: < 0.100
Noticeable difference: 0.100
:
0.131
Weighted THD @ Max
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What it is: The overall amount of harmonic distortion measured at the TV's maximum SPL. To make the score more perceptually relevant, more weight is given to the higher frequencies.
When it matters: How pure the sound is at moderate listening levels.
Good value: < 0.100
Noticeable difference: 0.100
:
10.517
IMD @ 80
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What it is: The average amount of inter-modulation distortion produced by the TV under maximum load. The percentage shown here is the average result of 3 separate test signals/standards: SMPTE, DIN, & CCIF
When it matters: When a clean and free of aliasing reproduction is desired
Good value: < 5%
Noticeable difference: 2
:
1.41 %
IMD @ Max
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What it is: The average amount of inter-modulation distortion produced by the TV under maximum load. The percentage shown here is the average result of 3 separate test signals/standards: SMPTE, DIN, & CCIF
When it matters: When a clean and free of aliasing reproduction is desired
Good value: < 5%
Noticeable difference: 2
:
6.67 %

Poor distortion performance. THD is high at all levels, and it very noticeable levels at higher volumes.

6.8

Smart Features

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Score components:
  • 42% Interface
  • 2% Ads
  • 37% Apps and Features
  • 16% Remote
  • 3% Remote App
Vizio M Series 2017 Smart TV Picture
Smart OS : SmartCast
Version : 3.3

The Vizio M 2017 runs Vizio SmartCast, which has a great phone and tablet app with full control over the TV's settings, and has great casting app support, but still nascent built-in app support. The highlight of the platform is the SmartCast app, which can change any of the TV's settings, enter text and act as the remote. The TV can play content cast from most apps on a smartphone or tablet, much like a Google Chromecast. An update recently added built-in app support, but currently few apps are supported and the app's interfaces are really choppy. The update also added proper USB drive support, so files can be browsed and played, but HDR is still not played properly. The TV lacks a built in tuner, so antenna and cable channels can't be played without using an external tuner like this one. However despite these limitations the TV is still quite usable as a smart TV, especially when used with a phone or tablet.

7.0 Interface
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What it is: The usability, features and performance of the main interface of the TV, not including the interfaces of the apps themselves.
When it matters: Anytime when using the TV, but especially when changing settings and using apps.
Score components: Subjectively assigned
Ease of Use
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What it is: How easy the interface is to navigate, affected by the organization of its layout, placing frequently accessed elements in areas that are faster to access, etc.
When it matters: When using the smart features.
:
Easy
Smoothness
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What it is: How smooth the interface is to navigate, affected by lag and frame drops.
When it matters: When using the smart features.
:
Not Smooth
Time Taken to Select YouTube
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What it is: How long it takes to select YouTube for launch, starting from HDMI 1 input, when YouTube is placed first on the list of apps or added as a shortcut. This does not include app launch time, and does not use a fixed YouTube button on a remote. This serves as an indication of the time needed to select any app.
When it matters: When launching any app.
:
15 s
Time Taken to Change Backlight
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What it is: The time it takes to navigate to the 'Backlight' setting ('Brightness' on Sony TVs). This serves as an indication of how long it takes to navigate to basic TV settings.
When it matters: When changing TV settings.
:
4 s
Advanced Options
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What it is: Whether advanced options and settings are available, such as color calibration.
When it matters: When customizing the TV and using the smart features.
:
Many

There is a side menu that can be accessed in any input, which contains all the TV's settings. There is also an apps screen, listed as 'SmartCast' under inputs, which is currently only one page and has really choppy animations. Because the app screen is listed as an input and has no button on the remote, it can take a while to click through the inputs to reach it.

10 Ads
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What it is: Whether or not ads can be found on the TV's smart platform.
When it matters: When using the smart features.
Score components:
Ads
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What it is: Whether the TV's main interface has ads. This does take into account ads in third-party apps.
When it matters: When using the smart features.
:
No
Opt-out
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What it is: Whether you can opt out of the ad services or not. A TV only passes this test if it allows you to remove them completely, not only disable the personalized advertising.
When it matters: When using the smart features.
:
N/A
Suggested Content in Home
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What it is: Whether suggested content appears in the TV's home menu or main menu. Suggested content can include recommended movies, TV shows, YouTube videos etc.
:
Yes
Opt-out of Suggested Content
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What it is: Whether the suggested content feed in the home menu can be removed or hidden
:
No

There are no ads in the TV's interface or the SmartCast app.

6.5 Apps and Features
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What it is: The usability, features and performance of apps and other smart features.
When it matters: Only when using smart features such as apps, casting and USB playback.
Score components: Subjectively assigned
Vizio M Series 2017 Apps Picture
App Selection
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What it is: The number and variety of apps available to download for the smart platform.
When it matters: When downloading new apps.
:
Many
App Smoothness
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What it is: How smooth it feels to navigate the interfaces of apps, affected by lag and frame drops.
When it matters: When using apps.
:
Not Smooth
Cast Capable
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What it is: Whether apps on a phone or tablet can cast content to the TV.
:
Yes
USB Drive Playback
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What it is: Whether the TV can play content from a drive connected to one of the TV's USB ports.
:
Yes
USB Drive HDR Playback
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What it is: Whether HDR files played from a USB drive can be displayed properly.
:
No
HDR in Netflix
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What it is: Whether HDR content on Netflix can be played back in HDR using the native Netflix app.
:
Yes
HDR in Amazon Video
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What it is: Whether HDR content on Amazon Video can be played in HDR using the native Amazon Video app.
:
No
HDR in YouTube
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What it is: Whether HDR content on YouTube can be played in HDR using the native YouTube app.
:
No

The TV can play content cast from most phone and tablet apps. It also has a few built-in apps, but currently only Netflix, Amazon Video, Hulu, Crackle, iHeartRadio, Xumo, Vudu and Pluto TV are available (not YouTube). Animations in the built in apps are really choppy, but there isn't much lag to actions.

6.0 Remote
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What it is: The usability and features of the TV's physical remote.
Score components: Subjectively assigned
Vizio M Series 2017 Remote Picture
Size
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What it is: How big the remote is
:
Medium
Voice Control
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What it is: The capabilities of the TV's voice control feature
:
No
CEC Menu Control
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What it is: Whether the remote can act as a universal remote for HDMI CEC enabled devices. This was tested on our Samsung UBD-K8500 4K Blu-ray player, and may not be valid for other CEC devices as implementations vary by manufacturer.
:
Yes
Other Smart Features
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What it is: Whether the remote has any other smart features, such as a pointer, universal remote support for non HDMI CEC devices, etc.
:
No

The Vizio M 2017's remote is a considerable improvement over the very basic remotes from last year, but the TV does not come with an included tablet like the 2016 M Series. The remote is still fairly basic and lacks smart features like a microphone or a pointer, like the smart remotes of other platforms.

8.0 Remote App
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What it is: The features of the official phone and tablet app for the TV.
Score components: Subjectively assigned
Vizio M Series 2017 Remote App Picture
Acts as the Remote
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What it is: Whether the remote app can emulate all the buttons of the physical remote.
:
Yes
Launches Apps and Inputs
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What it is: Whether the remote app can launch the TV's apps and change between its inputs.
:
Inputs Only
Inputs Text in YouTube
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What it is: Whether the remote app can enter text for YouTube searches.
:
N/A
Inputs Text in Netflix
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What it is: Whether the remote app can enter text for Netflix searches.
:
Yes
Streams Device Files
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What it is: Whether the remote app can stream files from the phone or tablet to the TV, files such as pictures, music and video.
:
No
Controls TV Settings
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What it is: Whether the app can change all or some of the settings on the TV, such as the backlight.
:
All
Voice Control
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What it is: Whether the remote can send voice commands to the TV.
:
No

The SmartCast app has more features than most other TV apps. Its highlight is its full control over the TV's settings, providing a much better experience than clicking through menus on the TV.

TV Controls
Vizio M Series 2017 Controls Picture

There are only four physical buttons: power, input, volume up and volume down.

In The Box
Vizio M Series 2017 In The Box Picture

  • Manual
  • Batteries
  • Remote

Unlike the 2016 model, the M Series 2017 doesn't come with a tablet.

Misc
Power Consumption : 77 W
Power Consumption (Max) : 184 W
Firmware : 3.2.13.3

Differences between Sizes and Variants

The Vizio M Series 2017 that we bought is the 65" with SKU M65-E0. Different sizes have different panel provenances, so it is possible our review doesn't represent exactly all sizes. If someone's Vizio M Series 2017 doesn't correspond to our review, let us know and we will update the review.   

Size Model Effective Refresh Rate Real Refresh Rate Local Dimming Zones
50" M50-E1 120 Hz 60 Hz 32
55" M55-E0 120 Hz 60 Hz 32
65" M65-E0 120 Hz 60 Hz 32
70" M70-E3 120 Hz 60 Hz 32
75" M75-E1 120 Hz 60 Hz 32

Compared to other TVs

Vizio M Series 2017 Group Shot Picture
Top left: Vizio P Series 2016 (P65-C1). Bottom left: Sony X800E (XBR43X800E). Middle: Vizio M Series 2017 (M65-E0). Top right: Vizio E Series 2017 (E65-E1). Bottom right: Samsung MU6300 (UN55MU6300).  Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The M Series 2017 is a good performer at its price, and offers some of the features found on the more expensive Vizio P Series 2016. It is generally a good pick over its direct competition.

Vizio P Series 2016
50" 55" 65" 75"

The P Series is a little brighter than the M Series in SDR and has a significantly lower input lag. Since it has a much better local dimming feature and deals with gradients better than the M Series, it does a bit better for HDR. Overall, if you can afford it, it is a more complete package than the M Series 2017. 

Sony X800E
43" 49" 55"

The Sony X800E is a similarly priced 4k LED TV that features a wider viewing angle. It's about as bright, but it deals with upscaling lower resolution content better than the Vizio, making it a better choice for daytime TV shows. In a dark room though, the Vizio M 2017 does much better, since its blacks are a lot deeper and it has local dimming, which the Sony lacks. The M Series is usually found a bit cheaper, but choosing between the two depends on your use-case. 

Vizio E Series 2017
50" 55" 60" 65" 70" 75" 80"

The E Series 2017 is a cheaper LED TV from Vizio. It lacks a few HDR related features such as wide color gamut, and it doesn't get as bright, but it performs very similarly with SDR movies in a dark room. If this is the bulk of your consumption, it can be worth saving your money and going for the E Series, but it is far less versatile than the M Series 2017.

Samsung MU6300
40" 43" 50" 55" 65" 75"

The MU6300 is Samsung's entry-level 4k LED TV. It doesn't have fancy features such as local dimming or wide color gamut, but it has a lower input lag than the Vizio. While the MU6300 deals with upscaling of lower resolution content a little better than the M Series 2017 and has a more intuitive set of smart features, it's usually slightly more expensive. Overall, the Vizio offers better value for money.

Conclusion
SEE PRICE
B&H

7.6Mixed Usage
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What it is General purpose. The TV will be used for a variety of content and usages. Movies at night, TV shows during the day, video games from time to time, etc.
Score components:
The M Series 2017 is a good TV for a mixed usage. It has good picture quality in a dark room, good handling of motion and features a nice set of HDR related features.
7.8Movies
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What it is Movies in the dark. The TV will be used for watching movies in a controlled environment, directly in front, in a home theater way. Mostly only high quality content, like Blu-rays, UHD Blu-rays, streaming and a little bit of HDR.
Score components:
Great choice for movies in a dark room. The Vizio M produces deep and uniform blacks, and it sports a decent local dimming feature that enhances its contrast further.
7.4TV Shows
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What it is TV Shows in a bright living room. The TV will be used in to watch TV shows, in a bright room during the day, from multiple viewing positions at different angles. The content watched has an average quality: cable, streaming, SD channels, etc.
Score components:
The M Series 2017 does an ordinary job with TV shows. It gets decently bright, but it doesn't do a great job at handling reflections. Unfortunately, its upscaling capability is average as well.
7.4Sports
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What it is Sports in a living room. The TV will be used to watch sports during the day, like football or hockey. Usually watched with a group, so from multiple viewing position.
Score components:
Decent TV for watching live sports. The Vizio M series handles motion well, and it produces a uniform image free of major blotchiness. Unfortunately though, picture quality does degrade at an angle.
8.1Video Games
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What it is Video games. The TV will be used to play video games, directly in front, in a controlled light environment. Usually fast games, like online FPS, where motion blur and input lag is important.
Great TV for video games. The Vizio M 2017 has low input lag and motion blur. Games feel responsive, and its image flicker feature can greatly enhance the clarity of motion.
7.7HDR Movies
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What it is HDR Movies and TV shows. The TV will be used to watch 4k UHD HDR content, with a wide color gamut and a high peak brightness. Either via UHD Blu-rays or HDR streaming.
The Vizio M 2017 handles HDR movies well. It gets decently bright, and it can reproduce a slightly wider range of colors. It's not the best at handling gradients though.
7.9HDR Gaming
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What it is HDR Gaming. The TV will be used to play HDR video games using consoles that support it or on current generation gaming PCs. Xbox One S, PS4 Pro, GTX 10 series and AMD RX series graphics cards.
Very good HDR gaming performance. An HDR input doesn't affect the input lag of the M Series 2017, making it a good choice for HDR consoles.
7.3PC Monitor
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What it is PC Monitor. The TV will be used as a PC monitor, from 2-3 feet away, either for productivity purposes or gaming. Sharp text is important, as well as a high resolution.
The M Series 2017 makes for an average PC monitor. While it supports the necessary resolutions for sharp text, the narrow viewing angle causes edges of the screen to darken from up-close. The input lag, while fine for more casual gaming, can also seem a bit sluggish for use with a mouse.
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Questions & Answers

16 ANSWERED QUESTIONS
34
Is the 2017 M Series an upgrade over the 2016 model?
Depending on your use, it may be. The 2017 model has a wider color gamut and gets brighter than the M Series 2016, resulting in a better HDR experience. For SDR content though it is slightly worse due to the fewer local dimming zones resulting in worse dark scene performance. The 2016 model also has better input lag for SDR only, due to the game low latency port. If you plan to watch a lot of HDR content or play HDR games then go with the 2017 M Series, but otherwise go for whichever is cheaper.

Update 06/30/2017: For HDR gaming we recommend the TCL P607 over both Vizio's, due to its lower HDR input lag.

13
I intend on using multiple 4K HDR devices with this television. For instance, I intend on using my PS4 Pro to benefit from its HDR abilities, and additionally with something like a Roku Ultra to get access to 4k HDR content from streaming services. Is that possible with this display? I see that there is only one HDMI 2.0 port. The others are HDMI 1.4, which I understand don't support 4k HDR at 60hz. Should I be looking for a TV which features multiple HDMI 2.0 ports? Thanks!
The other ports aren't HDMI 1.4 because they support HDR, but they aren't full bandwidth HDMI 2.0 ports either because they only have the bandwidth of an HDMI 1.4 port. Some devices can play HDR on these ports, such as a Blu-ray player than can output 24 Hz, but our Xbox One S and Chromecast Ultra can't play HDR on these ports because they need full bandwidth (the Chromecast Ultra is locked to 60 Hz). The Roku Ultra may not support 24 Hz either. 4k @ 60 Hz @ 4:2:0 @ 8 bit + HDR will play on these ports, but most players will not play HDR if they cannot play at 10 bit.

To be on the safe side it's probably best to buy a different TV, unless you plan on using an HDR capable HDMI splitter. Three ports are full bandwith on the TCL p series, four ports on the Vizio P Series 2016, two on the Sony X850E, and three on the Samsung MU6300: those TVs are the best alternatives to the M Series 2017, in that order, budget and size permitting.

6
First, I'm digging all the reviews and it is giving me a better insight for my next TV which my question. Coming from a plasma everything will be better but I'm specifically looking at the Vizio M65-E0 and Sony 65X850E. Both of which score decent with the Sony being the better overall one. However, while Vizio has full array LED but only 60Hz and includes Dolby Vision (most likely the next standard?), the Sony is side LED (brighter) without Dolby Vision. I'm undecided and ask for your recommendation. Go for Dolby Vision or the better overall picture (and refresh rate). Thank you and keep up the good work!
Thank you for the kind words! Both the Vizio M Series and the Sony X850E offer similar overall performance, but the X850E is better at handling motion while the M Series has better picture quality. If you watch a lot of sports and play video games on the TV, the X850E is a better choice, while the Vizio M Series is better for watching movies. If price is a consideration, the M Series is usually also the less expensive TV. The refresh rate is only important if you like motion interpolation (soap opera effect), which only the Sony X850E is able to display. Also note that content that utilizes Dolby Vision is currently limited. HDR10 is part of the 4k Ultra HD Blu-ray standard, so it is used for much more content.
4
On your Vizio M 2017 Review when it comes to gradient does the Vizio M 2017 do a good job with gradients? Like would you see any banding? I had a tv with bad banding on gradients, and it really bothered me. I just wondered because you gave the Vizio E 2017 a 9.5 for gradient and then the Vizio M 2017 an 8.5. Just wondering if the gradient on the Vizio M 2017 is good. Thanks

The Vizio M Series 2017 banding is a bit worse than on other TVs when it comes to 10 bit content like HDR UHD Blu-rays. We displayed the same scene from The Martian movie (at 00:46:36) that we already did a test on for the comparison between the Sony A1E and the LG C7 and the Vizio M Series 2017 did have more banding in comparison.

Here are the picture of the banding comparing the Vizio M Series 2017 with the LG C7 and the Sony A1E.

Vizio M Series 2017 Vizio M Series 2017 Banding
LG C7 LG C7 Banding
Sony A1E Sony A1E Banding
4
Would you recommend the M70-E3 or P65-C1? Or even M70-D3? All 3 are exactly the same price where I'm looking. Mostly used at night. TV/Movies and gaming all probably equal usage (4k gaming on Xbox One X eventually and PS4 Pro). Wall mounted over the fireplace. Sit about 11 feet back.
Go with the P Series 2016 (P65-C1). At the same price, you will be getting a bit more for your money with the P Series. The local dimming feature is much better than on the M Series 2017 (M70-E3) and you will have the wide color gamut (which is important for HDR) that is not available on the M Series 2016 (M70-D3).
4
Being that the M Series 2017 has a 60 Hz panel, is the M Series 2016 better for sports? They got the same rating, but I would think the 120 Hz on the 2016 model would be beneficial.
120 Hz is only beneficial when motion interpolation is enabled, as neither the 2016 or 2017 M support 120 Hz input. The 2017 model doesn't have motion interpolation at all. When motion interpolation is enabled the 2016 will have smoother motion for sports than the 2017, but if you don't like the soap opera effect on the rest of your content you will have to turn it off again every time, which may be annoying. Motion interpolation also adds artifacts, which are annoying for some.
4
Is there any way to get around using Smartcast on my phone? I have a good internet connection, but I can barely find the Vizio under "my devices" and constantly says "no connection available." Really considering returning the TV due to how rarely I'll be connected to Smartcast.
Instead of using the Smartcast app, you can use the TV like a standard Chromecast and cast to it directly from the app you consume content from on your phone (Youtube, Netflix). Vizio is planning a future system update that should bring an onscreen version of Smartcast that will make it easier to access content without having to use an external device.
3
Can the M series display HDR content from a 4k HDR video file via Kodi?
While you cannot install apps such as KODI on the Vizio M itself, it does support the casting of files through kodi using the "Yatse" remote app. Unfortunately though, the Vizio M doesn't appear to support casting HDR files or files encoded using the H.265 codec, so it will not be compatible with most HDR content.
2
Can the new remote be used on the 2016 models?
We can't confirm if it will work on all the 2016 models, but it worked on the P Series 2016 (and E Series 2017) on the latest firmware. It seems the on screen menus were added to some or all 2016 models even though they don't come with the remote needed to access them.
2
Sizes 65in and larger have 120hz effective with Clear Action 360: www.vizio.com/m65e0.html
Thank you for contacting us. The effective refresh rate is Vizio's terminology to describe their interpolation feature. In cases where the Effective refresh rate is above 60 Hz, the real refresh rate can be found by dividing the number in half (Effective 120 Hz means a 60 Hz real refresh rate). The unit we've purchased and tested is the same 65" variant linked, and it does only have a 60 Hz refresh rate. You can learn more about the various terminology manufacturers use to confuse consumers in our Fake Refresh Rate article which we update every year.
1
I was going to buy a 2016 M65 but knew the 2017 M65's were coming soon so I waited. Now I see this review and the 2017 M's went from 120Hz to 60Hz refresh rates, no motion interpolation option AND their lag input when from a low of 17.1ms 1080@60Hz on the '16 to a not that great 40.4ms 1080@60Hz on the '17. A non-TV expert like myself would say the 2017's are worse than the 2016s?
In some ways it is worse, but it does offer some advantages for HDR. It's significantly brighter, and it sports a wide color gamut, which the previous model lacks. If your usage doesn't really focus on HDR that much, then you might be better off with the 2016 model.
1
If I'm going to be using the HDMI ARC port for all of my connections, hooked up through a higher-end AV receiver, it is worth purchasing the 65" P Series 2016 over the 65" M Series 2017? In other words, how dramatic are the differences in picture quality -- is it worth the extra ~$400 for the features? One of my primary interests in purchasing the P series was the extra HDMI 2.0 ports, but if I'm going to be using ARC for all of my connections, I'm conflicted as to whether the extra $400 is really worth it.
The P Series 2016 is better than the M Series 2017 in nearly every way, especially for local dimming and SDR brightness. However in casual usage the difference while noticeable isn't major, both are good TVs. Whether it's worth the higher cost, or saving the money for a sooner upgrade, is up to you.
1
Difficulty choosing between the M and the P. With the 2017 M's having closed the gap in tech with the P's and the M70 and P65 being comparable in price, do the remaining major differences (60hz vs. 120hz and large disparity in local dimming zones) make the quality of the P or the additional 5" of the M, the more worthwhile?
Unless you use the soap opera effect or use a PC for a 120hz input, the different native refresh rate will not make a difference. The Picture quality of the two TVs is quite similar, but the P's local dimming will have an advantage in most cases. They aren't that far off each other though, so the larger size will probably enhance the experience more than the slightly better picture quality.
0
Why would the input lag be different when the HDFury is added to the chain? Could it perhaps be related to the HDMI/HDCP version being different? Was the increase in lag a consistent +10ms in all your tests?
This is the only TV for which the input lag from the Leo Bodnar tool was different than from the whole chain. The TV processes the signal from the tool differently than how it processes the signal from any other source. The 'Game Low Latency' toggle does nothing, and sharpness is disabled. We don't know what's different about the tool that makes the TV handle it differently, but any game console or PC will not be processed this way. We do know the tool sends an odd HDMI signal, as the HDFury Linker will not accept the signal from the tool if it's not passed through the Integral first. The only tests we can do using the tool alone are 1080p @ 60 Hz in game mode, out of game mode and with interpolation, which were all ~29 ms because the 'Game Low Latency' toggle does nothing and the TV doesn't have interpolation.
0
Does the higher peak brightness make the M Series 2017 a better choice than the P Series 2016 for HDR movies?
The P Series 2016 is definitely better for HDR movies. The P Series has higher HDR real scene brightness, which is the most important test, so the M Series 2017 will only have brighter highlights during really dark scenes. The P Series's local dimming is also far better.
0
Hey guys, love your reviews. I'm getting into HDR gaming and I have a quick question. Between the M Series 2016 and M Series 2017, which do you recommend? I see that the 2016 model has more dimming zones and a higher native refresh rate. Now, between the 2017 and 2016 M series, how would the better of the two stack up against the P Series 2016? I saw one response to a question where you stated that the P series isn't good for HDR gaming - but in your actual review of the item, you gave it high marks. Thanks!
For HDR gaming the 2017 M is definitely better, but the 2016 M has a low latency port for SDR gaming, giving it 20 ms less input lag than the 2017 M in SDR. Both models have ~40 ms of input lag for HDR, which is fine for casual gaming but may be too high for competitive gaming. So it's a tradeoff between low input lag and HDR. What will tip the scales is how much HDR content you watch on the side. The P Series 2016 has both great HDR picture quality and a low latency SDR port, so it's the best of both worlds and more.

Update 06/30/2017: For HDR gaming we recommend the TCL P607 over both Vizio's, due to its lower HDR input lag.

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