Samsung UN70KU6300 vs Vizio M70-D3 Review : Which’s better choice?





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Samsung UN70KU6300 and Vizio M70-D3 are cheap big screen 4K TVs that offer great picture quality. The highlight, both of them also already support HDR, whereUN70KU6300 supports HDR 10 while M70-D3 even supports both HDR formats HDR 10 and Dolby Visions. In addition to stunning picture quality for their class, both of them also offers attractive Smart TV platform. In the market, both of them are sold in price range \$1000-\$2000 where Vizio M70-D3 is sold about \$400 more expensive than Samsung UN70KU6300. So, what features that offered by each and which is a better choice between them? Let’s start o discuss one by one about the features that offered by each.

At a glance about Samsung UN70KU6300

Samsung UN70KU6300 is part of KU6300, the low end Samsung’s 2016 UHD TV lineup Series 6 that comes with flat panel. As 2016 series, it already supports HDR (High Dynamic Range) where as the HDR processor, there is HDR Premium Engine. In addition to its great HDR engine, UN70KU6300 is also powered by the number of Samsung advanced technologies that makes its performance greatly. For improving back level and contrast, there is UHD Dimming technology behind them. Additionally, there is also PurColor technology that delivered wide color gamut so the color of the picture that displayed looks accurate and natural. Samsung UN70KU6300 also equipped with great performance UHD Up-scaling engine that up-scale lower resolution to 4K quality clearly and sharply. For handling motion blur, it is powered by Motion Rate 120 based on native 60 Hz refresh rate panel. And like other Samsung’s 2016 Smart TV lineup, UN70KU6300 features excellent Tizen OS as their smart TV platform which offers attractive smart entertainment.

>> Please click here to see today’s price <<

At a Glance about Vizio M70-D3

 Vizio M70-D3 is part of Vizio M Series 2016, a mid class of Vizio 2016 4K TV lineup. Like UN60KU6300, it also already supports HDR, even not only one format but it already supports both HDR 10 and Dolby Vision formats. Like P Series, Full Array LED Backlighting with local dimming called Active LED Zones is that mainstay technology behind it. But unlike P series that have 128 dimming zones, M70-D3 comes with 64 dimming zones only. As its picture engine, M70-D3 is powered by VM 50 UHD engine and powered by the number of Vizio advanced technologies like Active Pixel Tuning, Pure Cinema Engine, and others. Additionally, for handling motion blur and 24p movies greatly, M70-D3 is powered by Clear Action Rate 720 based on effective 240 Hz or native 120 Hz refresh rate panel. Although not as good as the competitor, it UHD Up-scaling engine can be said great when up-scaling lower resolution contents. M70-D3 is also equipped with smart TV where it features Vizio Smart Cast apps as their platform. Unlike other smart TV platform which provided complete apps, it platform only serve as a screen mirroring of videos you have casted from casting apps on your smart phone.

Samsung UN70KU6300 vs Vizio M70-D3 Key Specs

Specs and Features Samsung UN70KU6300 Vizio M70-D3
Resolution 4K (216×3840) 4K (216×3840)
Size 70 Inch 70 Inch
Type of Panel VA Panel VA Panel
Backlight Direct LED Full Array LED
Dimming Technology UHD Dimming Local Dimming with 64 dimming zones
Picture Engine HDR Premium VM50 UHD Engine
Support HDR Yes (HDR10) Yes (HDR10 and Dolby Vision)
Other advanced technologies Ultra Clear Panel, PurColor Active Pixel Tuning, Pure Cinema Engine
Depth of Color 10 bit 8 bit
Motion Technology Motion Rate 120 Clear Action 720
Refresh rate 60 Hz (native) 120 Hz (native), 240 Hz (Effective)
UHD Up-scaling Yes Yes
3D technology No No
Smart TV Platform Tizen OS Vizio Smart Cast
Processor Quad Core Processor V8 Processor (quad core CPU and quad Core GPU)
Controller Samsung Smart Remote 8 Inch Tablet (Included in the box)
HDMI 3 5
USB 2 2
Component In 1 1
Composite In 1 0
Digital Audio Out (Optical) 1 1
Ethernet Yes Yes
Built In Wi-Fi Yes Yes
Built In Tuner Yes No
Audio Channel 2 2
Power Speaker 20 watts 20 watts
Price See today’s Price See today’s price

Vizio M70-D3 vs Samsung UN70KU6300 Performance

Picture Quality

The picture produced by both of Vizio M70-D3 and Samsung UN70KU6300 looks greatly for their price range. Both of them have the same deep black level and pretty good contrast ratio. The deepest black level reached by UN70KU6300 is 0.018 nits with about 5400:1 of native contrast ratio while M70-D3 reaches about 0.21 nits of black levels with about 4800:1 of native contrast ratio. This value is not far behind what reached by top model HDR TV that available in the market even much deeper than most of TVs that available in the market. With deep black level that reached by them, this should makes dark scenes of the picture that displayed on each of their screen looks sharp and rich in details. Moreover both of them already support HDR 10 where to display fully HDR 10 contents, it requires 0.05 nits or lower of black level. What reached by both of them in term of black level is quite enough to exploit details of dark scenes of the picture so looks more clearly.

But in other hand, both of Samsung UN70KU6300 and Vizio M70-D3 are not including bright TVs. On all % of window, peak brightness that achieved by UN70KU6300 is similar that is about 425 nits of peak brightness.   While peak brightness that reached by M70-D3 is about 415 nits on 25% window. On 100% window, peak brightness of M70-D3 even is even dimmer at about 240 nits of peak brightness. What reached by them even is lower than peak brightness which reached by most of LG IPS TVs. For displaying SDR contents in dark room, it might be more than enough, but for displaying SDR contents in bright room, this is still less than what is needed, much less for displaying HDR contents, peak brightness that reached by them certainly is still far from what required. As we know, to display HDR 10 video fully, it need at least 1000nits of peak brightness, even Dolby Vision needs much brighter peak brightness. This course makes the details of the picture on highlighted areas of lights cannot be displayed pretty well.  So, if you decide to buy one of these TVs, you should not use this TVs in a bright room or avoid panel from direct light beam.

Moving on color performance, range of color that can be covered by each of them is also not much different. Color delivered by Samsung UN70KU6300 can covers about 83% of DCI P3 color space while color produced by Vizio M70-D3 can cover about 81% of DCI P3 color space. It is good enough to display SDR content which needs Rec.709 color space. But for displaying HDR contents, it is certainly far from what required. As we know, for displaying HDR 10 fully, it requires at least 90% of DCI P3 color space with 10 bit depth of color while Dolby Vision even need much wider color gamut that is Rec.2020 color space with 12 bit depth of color. In term of depth of color, UN60KU6300 supports 10 bit depth of color while M70-D3 supports 8 bit depth of color. You need to know, 10 bit panel can deliver about 1.07 billion shades of color while 8 bit depth of color can deliver about 16 million shades of color. As the result, color gradient of the picture that displayed on the screen of UN70KU6300 looks smoother than what produced by M70-D3.

Additionally both of these Vizio M70-D3 and Samsung UN70KU6300 use VA Panel. As long as you watch TVs from front and center, the picture will look stunningly. But once your viewing angle is wider than 20 degrees off center and front, contrast and color will looks deteriorate. The wider of your viewing angle, the image will be seen deteriorating.

From display specs that offered by Samsung UN70KU6300 and Vizio M70-D3, both of these TVs can have deep black level and pretty good contrast ratio that makes the picture that displayed on each of their screen looks stunningly, especially in a dark room. But both of them are not a bright TV, so quality of the picture will looks less than maximal when they are used in bright room. As well as when they are playing HDR contents, their peak brightness and color gamut are far behind what required for displaying HDR contents fully. But if you don’t care about full HDR performance, what offered by Vizio M70-D3 and Samsung UN70KU6300 is quite enough to satisfy you in enjoying HDR entertainment in your home.

Winner : M70-D3 is slight superior caused the use of local dimming on its panel

Motion Handling

As we have mentioned above, Samsung UN7KU6300 is powered by Motion Rate 120 based on native 60 Hz refresh rate panel while Vizio M70-D3 is powered by Clear Action Rate 720 based on native 120 Hz refresh rate panel. The result, pixel response time of M70-D3 is quicker than UN70KU6300. The impact is when they are playing fast moving images like sports program or fast movies. They are good performers in handling motion bur, but in certain scenes, motion blur blur will be more visible on the screen of UN70KU6300 than M70-D3. A better performance is also offered by M70-D3 when they are playing 24p movies like Blu Ray Player. M70-D3 offers judder-free while the screen of UN70KU6300, there is still a little judder. But when they are play 24p sources via 60i like from Satellite TV and 60p signals like from Streaming media, their performance is less than maximum. The judder is still noticeable on each of their screen.  Although with certain setting, judder can be eliminated, this will add soap opera effect.

Winner : M70-D3

UHD Up-scaling

Performance of their up-scaling engine is great but for this time, Samsung UN70KU6300 is superior to Vizio M70-D3, especially for 720p and 480p sources. When the source is 1080p like Blu-Ray Movies, 4K picture that resulted looks very sharp and details on both of their screen. But when the source is 720p, small details of 4K picture that produced by M70-D3 look a bit loss while on the screen of UN70KU6300, the 4K picture that produced looks better. As well as when the source is 480p likes DVDs movies or other SD contents, it is up-scaled well without any problem on the screen of UN70KU6300 while the screen of M70-D3, picture up-scaled loss more small details, even the straight line on image will looks choppy.

Winner : UN70KU6300

Smart TV

As we see on comparison table above, Samsung UN70KU6300 features Tizen OS as its smart TV platform and powered by a quad core processor while Vizio M70-D3 features Vizio Smart Cast Apps and powered by V8 processor, a combination of quad core CPU and quad core GPU. Tizen OS provides complete and a lot of apps like Web Browser, VoD Services, Games, Contents Store, and many more while Vizio Smart Cast is more focused what needed viewers from app of Smart TV, that is for streaming Video. Even apps of Smart Cast are not installed on TV but they are installed on Smart Phone or Tablet that support Smart Cast while a TV only serves as the big screen to display video casted from casting services. For this time, there are a lot of apps already supports Casting Services like Netflix, Spotify, and many more.  This is similar to Google Cast on Google Android TV or Screen mirroring on Samsung TVs. As the controller, Samsung UN70KU6300 is equipped with Smart Remote that can serve as universal remote while Vizio M70-D3 is equipped with 8” Tablet and standard remote.

Vizio SmartCast Apps

Tizen OS

Winner : UN70KU6300


As their major connectivity, Samsung UN70KU6300 is equipped with 3 HDMI Ports while Vizio M70-D3 is equipped with 5 HDMI Ports. All of these ports already support HDCP 2.2. Input lag both of them is the same low at both 1080p and 4K resolution, but for M7-D3, the lowest input lag is only at HDMI 5, while on HDMI 1 to 4, their input lag is not as low as HDMI 5 or HDMI ports of UN70KU6300. Of course, they are great for 1080p or 4K fast pace competitive gaming. But for HDR signals, input lag of Vizio M70-D3 is too higher for HDR gaming while input lag of UN70KU6300 is low and it is great for HDR gaming. In addition to HDMI Ports, both of them are equally equipped with 2 USB Ports. The other connections, there are Digital Audi Out (optical), Component In (AV), Component In, Ethernet, RF In on the panel of UN70KU6300 while on the panel of M70-D3, there is not Composite In (AV) and RF in that means there is not built-in tuner in M70-D3. To be able to watch terrestrial broadcast, you must buy external tuner separately for M70-D3.

Winner : UN70KU6300

Sound quality

Both of Vizio M70-D3 and Samsung UN70KU6300 are equipped with 2 channels speaker system with 20 watts total power speakers. Both of them are not equipped with built-in woofer. Without built-in woofer, this course makes bass or low frequency of both is poor.  But even so, for middle or high frequency, UN70KU6300 offers better frequency response than M70-D3. Overall, sound quality of UN70KU6300 is average while sound quality of M70-D3 is below average. But even so, the additional external sound bar is still required for them if you want to get much better sound experience.

Winner : UN70KU6300

>> Please click here to see today’s price for the Samsung UN70KU6300 <<


Performance Samsung UN70KU6300 Vizio M70-D3
Design (4.3/5) (3.8/5)
Picture Quality (3.7/5) (3.8/5)
HDR (3.8/5) (4/5)
Motion Handling (3.1/5) (4.4/5)
Inputs (4.1/5) (4.4/5)
Sound Quality (3.3/5) (2.1/5)
Smart TV (4.3/5) (3.5/5)


As we have discussed above, although Vizio M70-D3 and Samsung UN70KU6300 offers similar performance in picture quality, but M70-D3 offers slight better picture quality in the narrower area of the images than UN70KU6300. This is due the use of Full Array LED Backlighting with local dimming on the panel of M70-D3 while UN70KU6300 only use direct LED backlighting without local dimming. The other advantage of M70-D3 than UN70KU6300 is about their ability in playing HDR where M70-D3 already support both HDR 10 and Dolby Vision while UN70KU6300 can play HDR 10 only. When handling Motion blur, Vizio M70-D3 is also superior to Samsung UN70KU6300 due the use higher native frequency of refresh rate panel.

In other hand, Samsung UN70KU6300 is superior in term of UHD Up-scaling performance especially when the source is 480p or 730p contents. Additionally, Tizen OS with complete apps is also more attractive than SmartCast that only focus on streaming video, despite frequently used apps of Smart TV is that has to do with video streaming. In term of connectivity, although UN70KU6300 has less HDMI Ports, but its input lag is lower especially at 4K HDR signals and of course it is better for playing HDR Gaming. Additionally, although sound quality both of them is not so impressive, but UN70KU6300 is offers slight better.

So, which is a better between them? As mentioned, with superiority in picture quality and ability in supporting HDR formats, Vizio M70-D3 is sold about $400 more expensive than Samsung UN70KU6300. This certainly comes back to you according to your need and taste. I just try to describe the superiority and inferiority between them while the decision still comes back to you.

>> Please click here to see today’s price for the Samsung UN70KU6300 <<



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