What is the Hisense 65N6800?
Connections & Control
Features & Specs
MORE: Best Smart TV Systems
Picture Settings – Out-of-the-Box
Hisense have also helpfully added a Gamma Adjust control, allowing you to select BT.1886, 2.0, 2.2 or 2.4. Otherwise the menu system remains relatively straightforward, with a similar basic layout to last year. We used the Cinema Night picture mode for our testing because it was the most accurate choice out-of-the-box, offering settings that best approximated the industry standards (D65, Rec. 709) and turning the majority of the processing off. You'll need to set the Backlight, Contrast and Brightness controls to suit your environment but otherwise by simply selecting the Cinema Night Picture Mode you'll already have a very accurate picture.
All our measurements were taken with a Klein K-10A colour meter, a Murideo Fresco Six-G pattern generator and CalMAN Ultimate calibration software. For more information on how to correctly set up your TV, take a look at our PicturePerfect Guide.
Picture Settings – Calibrated
You can find our recommended settings for the Hisense H65N6800 here.
Picture Settings – High Dynamic Range
Next we measured the Relative Colour Volume of the Hisense, which takes the display's own peak brightness and measures the colour volume relative to that peak brightness based on the CIE L*a*b* colour graph and 140 data points. The N6800 measured at 135% against Rec. 709, 90% against DCI-P3 and 61% against Rec. 2020 but these measurements aren't taking into account the maximum nits that the content is graded at, which is obviously much higher than the N6800's peak brightness of 434nits.
The Perceptual Colour Volume, which uses the PQ EOTF out to 10,000nits and the Rec. 2020 colour gamut measured using the ICtCp colour graph which takes into account human visual perception. This measurement uses 393 data points and delivers a number expressed in Millions of Distinguishable Colours (MDC). Here the N6800 delivered an MDC number of 236 which is the smallest number we have measured to date, reflecting the lower peak brightness and slightly smaller colour gamut.
Black Levels, Contrast Ratios and Viewing AnglesThe N6800 uses a VA panel and delivered a black level of 0.02 nits, which was achieved without even resorting to the local dimming. The panel could easily hit our standard dynamic range target of 120nits, which resulted in an on/off contrast ratio of 6000:1, whilst the ANSI contrast ratio was a very impressive 4750:1. In a rare case of a manufacturer downplaying the capabilities of their product, Hisense claimed a contrast ratio of 4000:1 in their marketing literature, so even if they were referring to the ANSI contrast ratio they were being modest. The shadow detail was also quite good, although this isn't an area where LCD panels are strong and there could be a slight loss of detail in more challenging material. Although a VA panel can deliver surprisingly good native blacks for LCD technology, there is a trade-off and in this case the optimal viewing angles were rather limited. As a result, if you sat more than 30 degrees off centre you would start to see a drop off in the contrast performance and the same is true when looking at the panel from above or below.
Backlight UniformityWhen it comes to edge-lit LED TVs, backlight uniformity is always something of a lottery but in the case of our review sample the backlight uniformity was reasonably good. There was a small amount of clouding but nothing that was actually visible when watching content during the day or even when watching a dark scene at night. However we did occasionally see some minor clouding with HDR content, especially on darker material when watching at night. At the edges, where the LEDs are located, the screen was slightly brighter, again especially with HDR content, but for an edge-lit LED TV that is to be expected. As always a bit of bias lighting when watching at night can work wonders with any TV but especially those that use LCD panels, so that's worth considering. We were pleased to see that the panel was free of any dirty screen effect and there was also an absence of banding on camera pans, which is good news for football fans.
Local DimmingIf you engaged the local dimming the black level dropped to 0.009nits but we'd recommend not using it, partly because it didn't make that much difference but also because it was fairly obvious in operation, raising or lowering the brightness from one scene to the next. The local dimming on Hisense's M7000 was certainly better and the kind of local dimming that you'll find on a Samsung TV, for example, is vastly superior. It's a nice feature to have but in the case of the N6800 we wouldn't bother using it, although thankfully the excellent native black levels and decent backlight uniformity meant it wasn't really missed.
Motion HandlingThe motion handling on the N6800 was fairly standard for an LCD TV delivering around 300 lines of motion resolution in our benchmark test. If you engage the frame interpolation feature this will improve, although the motion processing wasn't that good, only increasing the resolution to about 600, whilst film content will immediately start to look more like video. How we perceive motion varies from person to person but we wouldn't recommend using the frame interpolation for film-based content, however feel free to experiment with it when watching sports and other content that involves fast motion or was shot on video cameras. You have the choice of Clear, Standard and Smooth, although there didn't appear to be any obvious difference between the three. However if you watch a lot of football you might find the Custom setting useful, which will allow you to set the Judder and Blur Reduction controls to suit your personal tastes.
Standard Dynamic Range (SDR)Whilst it's important that people manage their expectations, there's no denying that the N6800 delivered an excellent picture with standard dynamic range content, especially when you consider the price. The excellent greyscale and colour gamut performance provided a solid backbone and the very capable video processing made lower resolution content look as good as possible on the Ultra HD 4K panel. Naturally on a 65-inch screen standard definition content can look poor, especially heavily compressed TV channels but a well encoded DVD could be surprisingly watchable.
When it came to high definition content the results were frequently very impressive and with HD broadcasts the H6800 deinterlaced and scaled the content effectively and all the positive attributes we mentioned for standard definition content equally applied to high definition, with colours looking suitably natural. When we moved on to Blu-ray the performance got even better, with current reference discs like Rogue One and Moana looking lovely. There were no problems with motion handling when it came to 24p content and overall the 65N6800 really impressed at its price point.
High Dynamic Range (HDR)Whilst the SDR performance genuinely impressed, the weak point of the N6800 was with High Dynamic Range content. Although this new model has a higher peak brightness and wider colour gamut than Hisense's 2016 mid-range models, it is still less impactful when compared to much of the competition. Having said that the 65N6800 was capable of delivering a very watchable HDR experience and a reference disc like Planet Earth II could still look fantastic, whilst the larger screen size allowed the Hisense to take full advantage of the increase in resolution of native 4K discs. Despite some issues with the DCI-P3 colour tracking in our tests, with actual content the colours were realistically saturated and natural. The ability of the LCD panel to deliver a brighter overall image with a 100% test pattern also meant that the HDR images never appeared dull, even during the day, but it also meant the peak highlights were less apparent.
That's because the N6800 could only deliver a peak brightness of 434nits, which meant it was unable to produce the same impact as a model that could reach 1,000nits. However a useful side-effect was that the Hisense was less likely to suffer the excessive clouding or bright edges seen on brighter edge-lit HDR TVs. That's not to say that you didn't see some, especially at night, but it was less pronounced. The N6800 tracked the PQ EOTF fairly closely in the HDR Night mode and as a result, the tone mapping handled the 'arriving in Neverland' scene in Pan quite well. However whilst the HDR Day mode did boost the overall brightness, it also clipped peak highlights quite noticeably, so we would recommend sticking with the HDR Night mode. Overall the H6800 managed to deliver an HDR experience that at least gave you a taste of the benefits of higher resolution, greater bit depth, wider colour gamut and higher dynamic range, even if it would struggle to compete with better but more expensive models.
Input Lag & Energy Usage
In terms of the N6800’s energy consumption it proved to be comparable to other 65-inch LED TVs that we have reviewed recently and using a full window 50% white pattern we measured the Standard picture mode at 109W and our calibrated Cinema Night mode at 73W, whilst the HDR mode naturally used more energy with a measurement of 170W.
How future-proof is this TV?
|4K Ultra HD Resolution|
|Colour Space (percentage of Rec.2020 - 100% best)||66%|
|HDMI 2.0a Inputs|
|HDCP 2.2 Support|
|4K Streaming Services|
|Smart TV Platform|
|Picture Accuracy Out-of-the-Box (score out of 10)||8|
|What do these mean?|
- Impressive black levels and contrast ratios
- Excellent greyscale and colour accuracy
- Good video processing
- Low input lag for gaming
- Plenty of features
- Solid build quality
- Competitive price
- Only two HDMI 2.0 inputs
- HDR brightness limited
- Minor clouding on backlight
- Some bright edges with HDR
- Narrow optimal viewing angle
Hisense H65N6800 4K LED TV Review
The 65N6800 struggled more when it came to high dynamic range content due to its limited peak brightness and Hisense need to work on the wide colour gamut accuracy but it was still capable of delivering an enjoyable HDR experience. The backlight uniformity was reasonable but could have been better and the local dimming lacked the sophistication of the competition. However we were especially pleased to see that Hisense have addressed most of the issues we raised in previous reviews, making this TV the latest model in a very positive evolutionary process. Whilst readers need to manage their expectations sensibly, we're certainly not saying the Hisense H65N6800 is perfect, it does deliver an excellent performance considering its price point, especially with SDR content, and as such is worthy of Recommendation.
Contrast/Dynamic Range/Black Level
Picture Quality Out-Of-The-Box
Picture Quality Calibrated
Ease Of Use
Value for Money
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