The Samsung JS9500 SUHD TV is a great 4k LED TV. The picture quality and its backlight are impressive, but it isn't without flaws. It has poor gray uniformity and a limited viewing angle.
The Samsung JS9500 SUHD TV is a great TV overall. It has a wider color gamut and a good full array local dimming backlight. It is very good for video games, due to its low response time and input lag. Unfortunately, the colors lose saturation at an angle and the gray uniformity is sub-par.
Turning on the local dimming didn't change our contrast ratio measurement at all (we measure it on a checkboard pattern). The native contrast on this TV is only average.
The local dimming is quite responsive, but there is some noticeable blooming around bright objects.
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Given the same HDR footage, the difference between how well two TVs display HDR content is based on how wide of a dynamic contrast range they can display. To test this, we display a 2% white window and put the backlight and local dimming to the max. We then measure how bright that rectangle is.
We measured 726.7 cd/m2 on the Samsung UN65JS9500, which is quite bright. You can see a big blooming area around it though, but at least the edges of the screen are completely turned off.
Of course, this test is far from perfect. When the HDR format gets standardized in a few months, we will update the review with a more meaningful test.
Like all VA panels, the colors are not the same when you sit at an angle. You will need to watch in front to appreciate this TV's picture quality.
Update 01/06/2017: We have changed the methodology of testing. Since this is an old TV which we don't have anymore, we extrapolated the results from 2016 TVs.
Note that to get the full benefit of 4k, you'll need to watch genuine 4k material, and also sit close enough to the TV to see the extra detail. We talk about this in more detail here.
The glossy screen does a great job at reducing reflected ambient light. However, direct lights are more defined, and also have a rainbow glare around them.
It can get very bright. It is great for a bright room - unless you have a window right in front of the TV. The reflection will be quite defined, which is distracting.
Watching movies over a Blu-ray player in 24p has no judder, but you might see some when watching movies over a 60p or 60i source, because it can't always do the reverse 3:2 pulldown (sometimes it works, but not always). 'Auto Motion Plus' gets rid of this, but it comes with the soap opera effect.
In game mode, the input lag is very low. PC mode has a higher input lag of 56.6 ms, which is a bit unfortunate if you want chroma 4:4:4.
It doesn't support 1080p @ 120fps, which is a bit of a shame, considering this is Samsung's best TV. To get 4k @ 60Hz @ 4:4:4, you must enable both PC mode and UHD Color.
Major Apps Available
Samsung's smart platform is really good, and the included remote is likewise pretty great. It includes voice and motion controls, so navigation is pretty simple.
Unique to Samsung's and Sony's smart offerings is the 'Playstation Now' game streaming feature. If you connect a DualShock 4 controller to this TV, you'll be able to subscribe to a game streaming service that offers old PlayStation games, playable directly from your TV.