Moving past the design the next point of interest is going to be the display which is one of the major elements of any smartphone, and pretty much the first thing you’re going to notice when you power on the phone. It’s easy to look at a display and provide some fluff about how the colors pop and how the high contrast leads to dark, inky blacks, but to rely solely on subjective observation really fails to capture the full extent of what a display is really like. If you put two displays side by side, you can tell that one is more visible outdoors, but there’s no way of distinguishing whether this is the case because of differences in display reflectance or display luminance. Other factors like gamut and gamma can also affect perceived visibility which is the basis for technologies like Apical’s Assertive Display system.

In order to try and separate out these various effects and reduce the need for relative testing we can use testing equipment that allows for absolute values which allow us to draw various conclusions about the ability of a display to perform to a certain specification. While in some cases more is generally speaking better, there are some cases where this isn’t necessarily true. An example of this is gamut and gamma. Although from an engineering perspective the ability to display extremely wide color gamuts is a good thing, we’re faced with the issue of standards compliance. For the most part we aren’t creating content that is solely for our own consumption, so a display needs to accurately reproduce content as the content creator intended. On the content creation side, it’s hard to know how to edit a photo to be shared if you don’t know how it will actually look on other people’s hardware. This can lead to monetary costs as well if you print photos from your phone that look nothing like the on-device preview.

To test all relevant aspects of a mobile display, our current workflow uses X-Rite’s i1Display Pro for cases where contrast and luminance accuracy is important, and the i1Pro2 spectrophotometer for cases where color accuracy is the main metric of interest. In order to put this hardware to use we use SpectraCal/Portrait Display’s CalMAN 5 Ultimate for its highly customizable UI and powerful workflow.

Before we get into the results though I want to discuss a few choice aspects of the Galaxy Note7’s display. At a high level this is a 5.7 inch 1440p Super AMOLED display that is made by Samsung with a PenTile subpixel matrix that uses two subpixels per logical pixel in a diamond arrangement. The display driver supports panel self-refresh as a MIPI DSI command panel rather than a video panel. In the Snapdragon 820 variant of this device it looks like there isn’t a dynamic FPS system and a two lane system is used so the display is rendered in halves. The panel identifies itself as S6E3HA5_AMB567MK01 which I’ve never actually seen anywhere else, but if we take the leap of guessing that the first half is the DDIC this uses a slightly newer revision of DDIC than the S6E3HA3 used in the Galaxy S7. I’m guessing this allows for the HDR mode that Samsung is advertising, but the panel is likely to be fairly comparable to the Galaxy Note5 given that the Galaxy S7 panel is fairly comparable to what we saw in the Galaxy S6.

Display - Max Brightness

Display - Max Brightness (Boost)

Looking at the brightness of the display, it’s pretty evident that the Galaxy Note7 is a bright panel, especially when compared to things like the HTC 10 and LG G5. The G5 does reach “800 nits” with its auto brightness boost, but the true steady state is nowhere near that point while the Galaxy Note7’s display can actually stay at its boost brightness for a reasonable amount of time and I’ve never really noticed a case where the boost brightness couldn’t be sustained if the environment dictated it.

Before we get into the calibration of the display it’s probably also worth discussing the viewing angles. As you might have guessed, the nature of PenTile and AMOLED have noticeable effects on viewing angles, but in different ways. As AMOLED places light emitters closer to the surface of the glass and doesn’t have a liquid crystal array to affect light emission, contrast and luminance are maintained significantly better than a traditional LCD. However, due to the use of PenTile it is still very obvious that there is a lot of color shifting as viewing angles vary. There are still some interference effects when you vary viewing angles as well. In this regard, LCDs seen in phones like the iPhone 6s are still better here. You could argue that one is more important than the other so I’d call this a wash, but AMOLED could stand to improve here.

SpectraCal CalMAN

Display - White Point

Display - Grayscale Accuracy

Moving on to grayscale and other parts of the display calibration testing it’s worth mentioning that all of these tests are done in Basic mode which is something I would suggest using in these AMOLED devices in order to improve both calibration accuracy and battery life as brightness is generally controlled by PWM while hue is controlled by voltage, so constraining the gamut actually reduces power draw of the display. Putting this comment aside, the grayscale calibration is really absurdly good here. Samsung could afford to slightly increase the target gamma from 2.1 to 2.2 but the difference is basically indistinguishable even if you had a perfectly calibrated monitor to compare to the Note7 we were sampled. Color temperature here is also neutral with none of the green push that often plagues Samsung AMOLEDs. There’s basically no room to discuss for improvement here because the calibration is going to be almost impossible to distinguish from perfect.

SpectraCal CalMAN

Display - Saturation Accuracy

In the saturations test again Samsung has basically nailed the sRGB gamut here to the extent that it’s going to be basically impossible to distinguish it from a reference monitor. I really have nothing else to say here because Samsung has no room to improve here. Of course, saturation sweeps are just one part of the whole story, so we can look at the GMB ColorChecker to see how well the Note7’s display can reproduce common hues.

SpectraCal CalMAN

Display - GretagMacbeth ColorChecker Accuracy

In the Gretag MacBeth ColorChecker test a number of common tones including skin, sky, and foliage are represented as well as other common colors. Again, Samsung is basically perfect here. They might need to push up the saturation of reds slightly higher but it’s basically impossible to tell this apart from a reference monitor. If you want to use your phone for photo editing, online shopping, watching videos, sharing photos, or pretty much anything where images are reproduced on more than one device, the Galaxy Note7 is going to be a great display. It may not be much of a step up from the Galaxy Note5, but at this point the only avenues that Samsung really needs to improve on is the maximum brightness at realistic APLs above 50% and power efficiency. It would also be good to see wider color gamuts in general, but I suspect the value of such things is going to continue to be limited until Google and Microsoft actually make a serious effort at building color management into the OS. It might also make sense to try and improve color stability with changes in viewing angle, but I suspect that AMOLED faces greater constraints here relative to LCD due to the need to improve the aging characteristics of the display. Regardless, it’s truly amazing just how well Samsung can execute when they make something a priority.

Introduction and Design Battery Life and Charge Time
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  • Axiomatic - Wednesday, August 17, 2016 - link

    My cube mate over the wall from me got the Note 7 today. His immediate comment to me was, "well it performs better with Nova Launcher than Touchwiz."
  • trparky - Wednesday, August 17, 2016 - link

    When you have to replace stuff on your phone to get acceptable performance, there's something wrong.
  • silverghozt - Wednesday, August 17, 2016 - link

    Are the photos from the Note 7 worse than the Note 5? Can you please compare. I'm astounded that the HTC 10 is taking better images.
  • BoyBawang - Thursday, August 18, 2016 - link

    Dear Anandtech,
    Please do a battery life test of the lower screen resolution settings. If the result is significant, I'll immediately permanently put it to 1080p without second thoughts the moment I have the device. I don't care if the mutant pretenders say that they can distinguish the difference.
  • lebigamaca - Thursday, August 18, 2016 - link

    It looks like you got the size of the rear camera pixels in reverse. Both are 1/2.6 inch so the 16 megapixel should have smaller pixels than the 12 megapixel.
  • skrewler2 - Thursday, August 18, 2016 - link

    it would have been nice to see a picture of the s7 edge and note7 side by side or stacked on top of each other so we could get an idea of how much bigger the note is
  • aryonoco - Friday, August 19, 2016 - link

    Does the phone ship with the latest Android Security Patch level?

    Has the manufacturer committed to providing security patches on a timely basis?

    Has the manufacturer committed to providing Android upgrades for X number of year?

    Why are such basic questions that affect the usability and viability of a phone ignored by AnandTech? We don't all buy new phones every 6 months. Some of us are holding on to our phones for 24 months or longer. The question "will my phone receive OS updates during its lifetime" is a very valid question that AT pays no attention to.

    Similarly we have paragraphs dedicated to the PMIC and various ICs in the phone, paragraphs dedicated to seeing if the phone drops a frame here or there, but no attention paid to the fact that the phone ships with unpatched remote root vulnerabilities.

    Anandtech's reviews are becoming less and less relevant. Sure, it's cool to know what IC is doing what in the phone, but it's absolutely irrelevant to its day to day use. Knowing if the OEM is going to supply OS updates and security updates in a timely manner very much matters!
  • tamalero - Friday, August 19, 2016 - link

    As someone who changes cell phones once every 3 or so years.. I'm pissed the current trend of copying Apple and their non changeable battery.
    Worse when Samsung no longer seems to produce older batteries to force to upgrade.
    Not exactly a fan to be forced to for 500+ USD for a throwaway phone.
  • tamalero - Friday, August 19, 2016 - link

    errata.. "not exactly a fan of being forced to FORK 500+ USD for a throaway phone every year"
  • name99 - Friday, August 19, 2016 - link

    "Despite all of this, there seems to be a general disappointment with smartphones."
    Come on Joshua, where do you drag up this nonsense?
    There is a tiny fraction of internet whingers, hyperactive fools with the attention-span of 5-year olds and generally the technological to match, that are "disappointed".

    Meanwhile in the real world, people are using their phones more than ever --- have you SEEN what a group of public people waiting around (think airport, restaurant, bus) looks like these days?
    People in the saturated wealthy nations continue (so far, as of the most recent data) to buy phones on the reliable two-year-update cycle --- and why not? This year's phones are faster than those of two years ago, with more RAM, faster flash, better radios,nicer screens.
    Meanwhile people in the non-wealthy world continue to be grateful for the ever falling prices, and enjoy moving on to their first smart phone.

    You are not in the business of click-bait or insane interest advocacy; you are in the business of tech journalism. You don't need to write to such stupid sentences; you;re better than that; and the market you're discussing deserves better.

    And starting with a stupid premise leads to what are factually flat out factually incorrect statements like "People are increasingly finding it hard to justify phones like the HTC 10 or Galaxy S7 with competition from..."
    HOW are people finding it hard to justify phones like the S7? Everyone knows I'm an Apple fan, but I'm also tuned into reality, and the reality is that the S7 has sold pretty damn well, (as far as I can tell perhaps 20% better than the S6).

    Look it's probably true that one day we'll hit enough of a wall in phone tech that the upgrade cycle WILL slide, and consumers WILL be massively over-served by phones. But let's not pretend that that prediction has already arrived.

    Part of the problem is that these reviews operate with a broken context. It makes sense to compare against last years model, but it also makes sense to compare against the model from two years ago because THAT is where the audience for this product is. Complaining that it won't excite the community it isn't TARGETED AT (ie the owners of last-years model) is just stupid.

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