What is the Samsung UE55H6400?
The most obvious thing missing when comparing the H6400 to the H8000 is, of course, the curved screen but some will see that as a plus. Under the hood, the H8000 boasts a more advanced dimming system, better speakers and enhanced ‘Clear Motion Rate’ processing but otherwise there’s little to separate them, on paper at least. Considering the wide disparity in price between the two, the flat UE55H6400 might just prove more desirable to many. Let’s see if it delivers.
Design & Connections
There’s no skimping in terms of the connections either. We get 4 HDMI ports, two of which are positioned at the side but since there’s around 22cm between them and the edge of the bezel, the cables should stay well hidden. Elsewhere are legacy Scart, Component & Composite inputs, audio outputs for a set of headphones and an amp/soundbar plus a wired LAN port. The H6400 does have WiFi built-in should you not have the TV near your router and there’s also a terminal for the Freeview HD capable aerial antennae. Also at the back is a jack for the bundled IR extender that will allow you to use the new smart remote as a controller for your set-top-box.
There’s not much to say about the conventional controller. It’s a stock Samsung design of rectangular form and a little smaller than most. Despite that, the buttons are still easy to find and are sensibly placed with most of the key controls placed in the middle two-thirds of the surface. There’s an indent at the back for your index finger so it rests comfortably in the hand and that’s about all we have to say on the matter.
In the out-of-the-box Movie settings there was a slight, but unmistakable, green tinge to the greyscale which resulted in white (and shades near white) having a mildly sickly look to them. Delta Errors averaged between 7 and 8 so we’ve definitely seen better unadjusted performance from a Samsung TV but, as expected, colours were generally very good at full saturation levels, especially in terms of the most important element - luminance.
Given that Samsung provides an excellent array of calibration controls, there’s usually no excuse for not obtaining perfection, or close to, from their displays. In actual fact, we only needed the slightest tickle on the 10-point White Balance controls to complement the work done with the two point. Although we could have left it ‘as is’ following the two point calibration. Delta Errors were maxing out at 0.9, where below 3 is considered perfectly acceptable, but we couldn’t resist improving gamma tracking near black.
Contrast, Black Levels and Screen Uniformity
This is a department where Samsung LED TVs usually score highly, against a lot of the competition, and the H6400 is no exception. We took multiple reads from a chequerboard pattern and ended up with an averaged black level of 0.042 cd/m2 against an average peak white of around 110 cd/m2. That gives us an ANSI contrast of 2637:1, which is more than serviceable and several orders of magnitude better than competing TVs equipped with IPS panels.
As is the norm for a high-ish end Samsung TV, the UE55H6400 was excellent with the critical video processing elements. It proved very accomplished at deinterlacing and scaling of standard definition signals was clean and precise.. The H6400 had no issues detecting both 3:2 and 2:2 cadences correctly, either, and so long as the Auto2 Film Mode was selected, scrolling video text over film was also delivered perfectly. The quality of the video deinterlacing at 1080i50 was just as good as it was for standard definition and there were no apparent issues with 24p content.
The H6400 isn’t the slickest gaming display we’ve tested recently, Sony are showing the others the way when it comes to having effective Game picture modes at the moment. On that topic, we’re slightly dismayed that Samsung continues to hide theirs in an illogical place that takes far too much seeking out for the novice user. For readers unversed in the ways of the Korean’s, you’ll find the Game mode under the Systems Menu, squirrelled in to the General submenu. We guess we should be thankful that there’s no need to rename one of the HDMI inputs to PC, in this case, to get the lowest latency results. As it was, the H64000 has a lag to controller input of 40.6 milliseconds, which will be a fraction high for demanding online competitive gamers but will be fine for the average single player title.
The following measurements were taken with a full screen 50% white pattern:
Out-of-the-Box – Standard Mode: 81.8W
Calibrated – Movie Mode: 75.5W
Calibrated - 3D Mode: 121.8W
Samsung UE55H6400 Picture Quality - 2D
Of course, the F6400 was dazzling with high definition content where the relatively large screen size really shows its worth but you might be surprised at how well it handles lower definition content. We certainly don’t make a habit out of seeking out Standard Def to watch but on those now rare occasions when you’re forced in to it, the scaling of the 6 Series Samsung’s is so good that you won’t fell as though you’re missing out too much.
We also have some tentatively proffered good news regarding a processing issue that’s been noticeable with the Samsung LED’s in the past. We have previously noted those TVs equipped with CMR (Clear Motion Rate) processing were prone to have the odd stutter and splutter when movement on-screen changed pace – particularly noticeable with sports where action replay sequences are used – but that seems to be a thing of the past now. If we do have a bone to pick it’s with a tendency of the panel array to sometimes show up on panning shots, although thankfully, it’s not something we have to report seeing a lot of during the review process.
The short story is that the Samsung UE55H6400 is an excellent example of LED/LCD television technology done right that would be sure to please all but the most demanding of videophiles.
Samsung UE55H6400 Video Review
Samsung UE55H6400 Picture Quality - 3D
- Great blacks
- Punchy contrast performance
- Accurate Colours
- Super video processing
- Incredible Smart TV features
- Some array banding on panning shots
- Still don't like that stand
Samsung UE55H6400 (H6400) 3D LED LCD TV Review
There are all the connectivity options you could want, including 4 HDMI ports, 3 USB, wired and wireless LAN plus the usual array of legacy video inputs and audio outputs. You can scroll through the menus using a conventional remote control or use the redesigned smart controller for a more refined experience. The new controller works really well and offers voice, gesture and touch controls.
Samsung's menu systems have remained relatively untouched and contain a very comprehensive set of calibration controls. The Smart TV platform has also been slightly re-jigged with the most notable new feature being a shortcut bar which appears every time you fire the TV up. As usual, the scope of Samsung's Smart TV platform is enormous so a dedicated review will follow in due course.
Out-of-the-box, the H6400 had a reasonably accurate picture in the default Movie mode but we were able to improve on it significantly with the excellent calibration controls. Following tweakage, the Samsung had perfect greyscale and gamma tracking and near-perfect colours which married with some top-notch video processing and punchy native contrast performance to produce images that were, at times, sublime.
There was a little bit of panel banding sometimes evident on panning shots but, other than that, general screen uniformity was good and the 3D output of the H6400 wasn't too far off matching that of the 2D, although we'd probably seek out some of Samsung's after market 3D eyewear, rather than use the included as they let in too much light for our liking.
All in all, the Samsung H6400 is a television that's not really lacking in any department and it's one we're more than happy to recommend for a demo.
Contrast/Dynamic Range/Black Level
3D Picture Quality
Ease Of Use
Value for Money
Our Review Ethos
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