The Sony X810C 4k LED TV has excellent picture quality, but it lacks more advanced features. The only major downside of this TV is the degradation of the colors when you view it from the side.
The Sony X810C 4k LED TV feels cheaper than other Sony X* TVs. The build quality isn't as good, the borders are thicker, and the TV is bulkier.
The raw picture quality of this 4k TV is pretty great, making it a good choice for watching movies. The blacks are good and the colors not too far off by default.
It doesn't have any fancy features (local dimming, extended color gamut, 3D), but unless you plan to be an early adopter of HDR content, it doesn't really matter. The peak brightness is quite low and reflections are average so can't combat glare on the screen. When viewed from the side the picture quality deteriorates.
As with most Sony TVs, the native contrast is great. It doesn't get better than this for an LED TV. Note: This only applies to the 55". The 65" has an IPS panel, so worse blacks.
The corners are noticeably darker than the rest of the screen, but at least it has less dirty screen effect than most LED TVs.
As with all VA LED TVs, it loses color saturation and contrast when you view it off-axis. Note: This only applies to the 55". The 65" has an IPS panel, so a better viewing angle.
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.
The uniformity of the blacks isn't the best. Our unit has a little bit of clouding/flashlighting in the corners, but nothing too distracting.
It has a standard semi-gloss screen finish. You can see some rainbows around direct reflections, but nothing outrageous.
The maximum luminosity of this TV is average, so it isn't ideal if you have a lot of windows.
It is a great choice for content with lots of motion. It doesn't have much motion blur which is great. It can play movies from all sources smoothly. It is also able to interpolate motion up to the panels native refresh rate of 120Hz.
The response time is great on nearly all transitions, so you won't notice a long trail following fast-moving objects. By default, this TV doesn't use PWM, so it is flicker-free. You can add one, if you prefer, by enabling 'Motionflow' - 'Clearness'. Check our Q&A section of our X930C review to see what all the values of that setting does.
You can control the movement of the picture exactly how you want. You can have judder free 24p for movies even over 60p if you set 'Motionflow' to 'TrueCinema' and 'Film Mode' to 'High'. You can also use motion interpolation to enhance the frame rate.
If you plan on connecting it to a PC, the Sony X810C accepts pretty much any signal you can throw at it. It has fairly low input lag which should be good for most people. It accepts a wide range of inputs.
While the 35 ms input lag isn't the best, very few gamers will notice it. Some people might even want to play with motion interpolation turned on (Motionflow) because the input lag when using this feature isn't that high.
Just like with last year's Sony TVs, 1080p @ 120Hz produces little artifacts (lines), but this shouldn't be too bothersome while gaming.
To be able to display 4:4:4, simply set the mode to game or computer. For 4k @ 60Hz @ 4:4:4, you will also need to turn on 'HDMI Enhance', under 'Home' - 'Settings' - 'External Inputs'.
The sound isn't that accurate, and that only gets worse with louder volumes. You also won't get great bass from this TV.
Note: Sound Quality test for TVs reviewed before 2017 was performed at 75dB, 85dB, and Max SPL. Starting 2017, the target SPL levels have been changed to 70dB, 80dB, and Max dB SPL.
Poor frequency response, especially at higher volumes where pumping and compression may be present. The TV doesn't produce a lot of bass either, but it does get loud.
Good distortion numbers at low volumes, however, like the other Sony TVs we've tested, distortion increases noticeably as the volume approaches the speakers' limit. There's also noticeable aliasing under heavy load.
This is a smart TV, and it features the Android OS. It is still a little bit rough around the edges, but it is improving quite fast.
The remote included is very basic, not something as fancy as some LG's or Samsung's remotes.