Display

With the advent of the modern smartphone, the display became one of the most important aspects of the entire experience as it was the only method of interacting with the device. To this end, Samsung has equipped the Galaxy Note 4 with their latest generation AMOLED panel, which has a higher resolution 1440p display, although this is achieved with a PenTile subpixel layout that makes total subpixel density lower than a conventional RGB stripe, so true subpixel density increases around 20% when compared to an RGB stripe 1080p panel. For reference, going from an RGB stripe 1080p panel to a 1440p panel of the same subpixel stripe would have a density increase closer to 80%.

In practice, the visible resolution varies somewhere between the “worst case” where the eye can see the true subpixel density and the best case where the display appears to be an RGB stripe 1440p display. If I look closely it’s still possible to see a fringing patterns in certain cases. Other than these minor cases, the Galaxy Note 4’s display has more than enough resolution for a smartphone use case. This is noticeably better than what I see with the iPhone 6 Plus, although in casual use it’s unlikely that these resolution differences will actually matter in most cases. I definitely think that there will be a visible difference for VR, although even the Galaxy Note 4’s display lacks sufficient resolution to have a “perfect” display in that scenario.

However, resolution is a relatively simple metric to look at. In order to better test the display we must look at other key metrics. In order to do this, we turn to SpectraCal’s CalMAN 5, along with a spectrophotometer for accurate color measurements.

Display - Max Brightness

While relatively simple, brightness and contrast are quite important as a display that’s dim or low in contrast will appear to be quite poor. In terms of brightness, we see that Samsung continues to maintain relatively high peak luminance, and a massive improvement when compared to previous generation AMOLED displays. While the normal peak brightness is a bit on the low side, as long as one uses auto-brightness the display’s “boost mode” will be able to activate and reach around 450 nits so in practice sunlight visibility should be more than acceptable. Contrast remains as incredible as it always is with AMOLED displays of this generation, although there still seems to be visible RC delay of some sort as there can be a purple trail effect when pixels transition from an unlit to lit state. I suspect this is mostly unavoidable, and is generally only visible at low brightness.

Display - White Point

Display - Grayscale Accuracy

The next test we’ll look at is grayscale, which can suggest issues with overall tints in the display and issues with gamma. In this area, we see that the display is definitely quite good in overall gamma but unfortunately there’s a bit of a green tint here which causes a regression when compared to the Galaxy S5 LTE-A Broadband. This is really only visible on some certain percentages of gray but it would be an area where some improvement is needed.

Display - Saturation Accuracy

While grayscale is one aspect of the display, it’s also important to look at color overall. One of the first tests for color is the saturation sweep, where the Note 4’s display performs admirably. At this point, there’s really not much to point out for improvement as the dE2000 average is low enough that one won’t notice any issues with color accuracy in Basic mode.

Display - GMB Accuracy

Similarly, the display does a fantastic job in the Gretag Macbeth ColorChecker. It should be possible to get a good idea of what a photo will look like on other displays and other similarly color-sensitive work on the Note 4. Samsung has also included other modes for those that want more vivid or otherwise more saturated color, which is of great benefit for those interested in such a color profile. The one potential issue here is that there is color shifting when altering viewing angles. In comparison to the Note 3, the Note 4 has a far better display. As-is, the state of AMOLED seems to be in a dead heat with LCD now as both seem to have their own trade-offs. However, we may soon see a shift as Samsung’s AMOLED becomes indisputably better than even the best LCDs.

Battery Life and Charge Time Camera: Still Image Performance
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  • KuyaMarkEduard - Tuesday, October 21, 2014 - link

    WOW! great decision Beck2050... hopefully I can also have my own Note 4 in the near future...
  • KuyaMarkEduard - Saturday, October 18, 2014 - link

    want to see the fairest and most unbiased review of both? go here:
    http://www.gsmarena.com/samsung_galaxy_note_4-revi...
    and
    here http://www.gsmarena.com/apple_iphone_6_plus-review...
  • KuyaMarkEduard - Saturday, October 18, 2014 - link

    Now, guess what, instead of making the truest, the fairest and the most unbiased reviews posible, you know what?, there webmaster is now getting busy of blocking my comments! Well if you do that, I shall keep on signing-up new account for each and every comment I'm going to post... Would you like that?
  • cj100570 - Monday, October 20, 2014 - link

    Wow! The comments on this are a hodgepodge of hillbilly hilarity and backwoods stupidity!
  • DIYEyal - Wednesday, October 22, 2014 - link

    Great article, I found a typo:
    page 3:
    "transition to Snapdragon 801 and 805"
    Should have been "transition from 801 to 805"
  • Heartdisease - Wednesday, October 22, 2014 - link

    This is not a review. At least not an honest one. It is more a compare contrast the iPhone 6 + with a lot of facts omitted. Anandtech is becoming very very biased to the point I don't think I can trust the information here. The display is equal to the iPhone 6 + ??. Laughable. It has been measured to be the best mobile display ever made, setting new benchmarks in most categories.http://www.displaymate.com/Galaxy_Note4_ShootOut_1...

    Yeah equal to the iPhone 6 + display sure.

    "the Galaxy Note 4 provides a very accurate calibration to the Adobe RGB standard, which is rarely available in consumers displays, and is very useful for high-end digital photography and other advanced imaging applications."
  • Donkey2008 - Wednesday, October 29, 2014 - link

    **Butt hurt Android fan alert**
  • Fidelator - Thursday, October 23, 2014 - link

    No video playback loop battery test? Hmm I wonder why you wouldn't show us a test where AMOLED would be the one to ace it... Much like LCDs ace the web browsing battery test due to the white backgrounds, that's a really important part of the review lost there, I'll just assume the note crushed most of the competition (6 Plus) in that test and you didn't want to show that.

    And this is coming from someone who usually buys phones with LCDs because of the burn in issues, the battery test was unfair
  • akdj - Saturday, December 6, 2014 - link

    I'm not sure of your reality, but I don't know a whole lot of folks enjoying 'video' all day on their phones. Tablets, sure if you're traveling, hanging out, or 'doing your own thing'. But most folks aren't gonna sit around for 20 hours watching movies
    Plentry of 'props' were given to AMOLED...& not just with the N4 review. Each iteration and improvement to AMOLED has been recognized.
    If all of you folks crying 'bias', and you've found sites that are correct with their measurements, why are you still here? It's ridiculous, this cult following of OEMs or a smartphone OS, it's laughable
    These tests are objective. They (each author doing mobile reviews) continue to prelude their measurements with their dissatisfaction with the testing protocols and options available --- but they're what's available TODAY to objectively measure performance
    A life spent cheerleading for an operating system on a mobile phone is a life wasted. Buy what works for you and get on with it. This 'comment' section is the funny place these days
    Apple's kicking ass right now for a reason. Samsung is building some incredible handsets, as are LG & HTC, Sony and Motorola. Competition is good for everyone and as an owner of a business, I use a Note 4 specifically for business
    I own an iPhone 6+ as my daily driver. Still have a Xoom and the original iPad too. If you don't 'get it' yet, you will. They're ALL incredible devices and a couple hundred points here or there when we're discussing measurements in the tens of thousands --- there's hardly a way to discern the way it's going to work for you, what you do and things you enjoy.
    If you're an idiot like me and can't decide, get both. Anyone in this comment section beating down the iPhone is wrong. Blaming the author as a biased Apple joker is pretty low, especially as extensive as this review is ...and the amount it cost YOU to read it!
    I love my Note 4, owned the first and the third as well. He's right. It's a Big leap forward in design. You guys making up the bullshit battery statistics crack me up too. MOST usage on a phone is done on white or a lightly colored display with dark text for contrast. Text. Call. Surf. Read, edit a photo, video, audio in a DAW...but if BOTH can run movies for ten hours plus, WHO CARES!
    No right minded person would spend that kinda time watching blockbusters on a 5.7" display. Games and emails, magazines and media, social networking and docs, spreadsheets or presentations ...NONE are tests AMOLED is going to 'ace'
  • leonhk1 - Wednesday, October 29, 2014 - link

    Hi,
    I have stock of Brand New Samsung GALAXY Note 4 for sale, sealed in box with warranty.
    Price: $500 per unit
    MOQ: 1 unit
    Bonus : Buy 2 get 1 free.
    Serious Buyers should contact for more details

    E-mail: megas83@yahoo.co.uk

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