The iPhone 6 Review
by Joshua Ho, Brandon Chester, Chris Heinonen & Ryan Smith on September 30, 2014 8:01 AM EST- Posted in
- Smartphones
- Apple
- Mobile
- iPhone 6
Display
As the primary mode of interaction with the phone, the display is one of the most important areas of evaluation. Of course, the methods of evaluation can be hotly debated. There is a great deal of subjectivity in this area in terms of what someone prefers. However, for the sake of color calibration our tests follow world-wide standards instead of personal preference one way or another. This means that we use the sRGB gamut and 2.2 gamma, which most content is adapted to. While AdobeRGB and other gamuts exist, these are for limited use cases and only applicable to operating systems that are aware of multiple gamuts and can dynamically switch between them depending upon the metadata of the content. In order to accurately test for how well a display conforms to these standards, we use SpectraCal’s CalMAN 5 along with a spectrophotometer for accurate color readings.
For those that are unfamiliar with the display of the iPhone 6 and Apple’s key marketing points on this new model, the improvements are mostly centered on higher resolution, contrast, and better viewing angles. In terms of higher resolution the iPhone 6 moves from the 1136x640 pixels of the iPhone 5/5s generation to 1334x750 pixels. However, this doesn’t improve the pixel density, which remains at 326 pixels per inch.
In practice, I definitely continue to notice the difference in resolution when using the iPhone 6 as opposed to the higher pixel density iPhone 6 Plus and the various Android smartphones with 450+ PPI displays. I definitely don’t find the resolution to be a problem though, as these issues only become significant to me below 300 PPI. I do think that around 450 to 500 PPI is the right place to be when balancing pixel density and power, but Apple’s choice should pay off in the form of better power consumption especially because LED backlights rapidly lose efficiency near the highest current region.
The other issue at hand is that of viewing angles. While Apple is one of the first to really talk about dual domain pixels, this technique is rather commonly used to improve viewing angles. The result is that a pair of pixels will appear to be a chevron, and overall the pixels appear to be squiggly in nature. While this doesn’t really change the readability of the display at extreme angles, colors like white no longer have noticeable red/yellow/blue shifts depending upon the angle that the display is shifted at.
This is definitely noticeable in everyday use, as the iPhone 5s could only avoid color shifting at certain angles instead of every angle. As I predicted in the launch article though, the one caveat seems to be that black has a noticeable shift towards purple in certain angles. There's also a noticeable hatching on close examination, but this doesn't affect image quality. This is definitely better than what I see on AMOLED though, as while AMOLED has much better brightness stability the color shifting is far more obvious and significant.
Now that we’ve covered the other two, we can talk about contrast. For this test, we measure brightness of 100% white and black at maximum display brightness, and look at the ratio. While we’re looking into getting patterns that can’t be defeated by dynamic contrast/backlight this should give an idea of best case contrast. In this case, peak brightness is on the high side at 560 nits, with relatively low black brightness at about a third of a nit. The result is one of the best contrast ratios I’ve ever seen. While the HTC One (M7) has a 1743:1 contrast ratio in our tests, some testing I’ve done indicates that the true contrast ratio is realistically around that of the One (M8). I’m not quite sure how this was done, but Apple stated that a new deposition process was used for the liquid crystals. This, along with changes to the liquid crystals themselves, could be responsible for the improved contrast.
The next part to talk about is grayscale, which is an area where Apple seemed to prefer bluer color balances. I don’t really have much to pick at here, because the level of calibration here is incredible. While there is a noticeable trend of overshooting red at the low end and undershooting red at the high end, this is nitpicking at best. At any rate, this is essentially perfect.
Our next test is the saturation sweep, which tests each primary and secondary color for accuracy in hue and luminance. While it’s true that humans can be relatively insensitive to differences in saturation, it is all too common to see OEMs artificially compress saturations to have vivid colors and be able to claim that they have an accurate display because it matches the sRGB gamut. In this test, the iPhone 6 sets a new record. I really don’t have any objections here because a dE2000 value of 1.19 is a deviation that is almost impossible to notice.
The final test is the Gretag MacBeth ColorChecker, which tests various hues and is usually one of the hardest tests to perform well in. In this regard, the iPhone 6 once again sets a new record for accuracy. This display is effectively calibrated to sRGB, and one would be hard pressed to find a significant deviation when compared to a reference monitor.
Overall, it’s hard to find any criticism for this display. I would normally be incredibly suspicious to see these numbers on a smartphone, but the fact that there’s a hot pixel in the center of the display suggests to me that this was not a cherry-picked unit. The fact that I find this level of calibration to be suspicious speaks volumes about how good this display is. While contrast isn't AMOLED levels of black, there are no purple smearing effects, noticeable uneven luminance near black, or any other idiosyncrasies.
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Oxford Guy - Saturday, October 4, 2014 - link
"With Cyclone Apple hit on a very solid design: use a wide, high-IPC design with great latency in order to reach high performance levels at low clock speeds. By keeping the CPU wide and the clock speed low, Apple was able to hit their performance goals without having to push the envelope on power consumption, as lower clock speeds help keep CPU power use in check. It’s all very Intel Core-like, all things considered."The G4 and G5 processors were wide when Intel was doing its lame NetBurst thing. The "wide and shallow" G4 in particular had low clock speeds. The "wide and deep" G5 bumped them up a bit. The "narrow and deep" NetBurst was the high clock speed awful performance per watt Intel brainchild.
Coup27 - Saturday, October 4, 2014 - link
"Fortunately, based on the USB device information for the phones, both the iPhone 6 and 6 Plus support charging with power adapters like the iPad charging block that can provide up to 2.1 amps at five volts. Using one of these chargers will dramatically reduce charge time on the new iPhones, and it's a very worthwhile investment (assuming you don't already have an iPad) for the iPhone 6 Plus in particular."If this was any other phone manufacturer they would have been lambasted for taking the cheaper route and not providing a charger which charges the battery in the most optimal time. However, with this being Apple and all, it's perfectly acceptable to ship a 1A charger and it's a "worthwhile investment" for the user to buy another charger (if they don't already have one) with a higher current to charge their phone faster.
Simply not acceptable. As much as I love this site, this review is no more than the typical Apple fodder which is trotted out all over the web. The fact that one German publication was recently struck off the media list by Apple for posting a bending video of the 6 Plus vs Note 3 shows what happens when the media dare say something negative and it's quite clear they would rather stay on Apple's good side than be truly honest in their reviews.
There was no mention in this review about half the hardware choices made here. The screen ppi was very lightly glossed over. No mention of the lack of stereo speakers or waterproofing to name but a few. Someone suggested that waterproofing adds a lot of bulk to the phone. On the S5 I would agree, however the Xperia Z3 is only 0.4mm thicker than the iPhone 6 so it can be done whilst still looking stylish.
Apple produced marketing photos where they photo shopped out the camera bump. Yet here it is described as an "interesting design choice". No mention of it wobbling all over the place when placed on a flat surface. Let's look at PDAF. Given virtually no time on the S5 review but a full explanation given here. The S5 review was also 10 pages long written by 2 people, this is 14 pages written by 4 people.
Sometimes you can't move on the home page on this site for articles about Apple, yet there has been nothing so far, not even a pipeline story about the disastrous bugs coming out of iOS 8.
Add to this the badly managed silent departures of Anand and Brian to Apple, I don't think there's much point reading Apple reviews any more.
tralalalalalala40 - Sunday, October 5, 2014 - link
1) Everyone charges overnight, no difference to user experience.2) No proof that german media site was struck off some magical list.
3) ppi does not equal quality. (Unless you believe more MP is better, then please just go buy a lumia)
4) no phone is water proof, it's a range of water resistance.
5) no proof that apple photoshopped their own marketing material to change the camera design
6) no one uses their phone with the back flat on the table
7) every OS has bugs, the issue is that apple actually gives out upgrades (que the majority of android users still stuck with a massively susceptible default browser). You won't hear about android L issues because it will take 2+ years to be on 20% of android phones.
8) employees change jobs. everyone knows about it, do you want a NYTs editorial about it?
9) if you want non-scientific reviews go to cnet.
Coup27 - Sunday, October 5, 2014 - link
I can't decide which is worse. The answers in post, or the arrogance.1. Not true. People's lives are all different. To suggest everyone's phone can last until they go to bed is a massive generalisation. The supplied charger should charge the phone in the most optimal time, regardless when the phone is charged.
2. http://blog.gsmarena.com/apple-completely-loses-pl...
3. Why are you talking about two different things? ppi is clearly directly related to quality. You could have the best panel money could buy but if the ppi was 96 on a 5" screen it would look terrible. It is now widely accepted, and even mentioned in this review that ~450 ppi is a perfect balance between resolution and battery life. MP has no relevance in this discussion.
4. There are many IP67 phones which are immersion proof up to 1M for 30 minutes. There are now IP68 phones which are immersion proof beyond 1M for 30 minutes. If they phone can be dunked under water, that's water proof.
5. http://blog.gsmarena.com/apple-iphone-6-features-c...
6. Do you speak for everybody in the world?
7. KitKat and Jelly Bean account for over 75% of Android devices. (Google it if you want the source). Yes, budget phones are often left behind in software, but that's because they are budget phones. People sign up for that experience when they pay a fraction of the cost of an iPhone or Android flagship.
8. Anand moving to Apple should have broke on this site, not every other tech site. Anand has gone on for years about openness and honesty. Where was it then? Brian disappeared completely and despite multiple requests, nobody would say where he had gone. That news was also broken by other tech sites. It was like AT had something to hide. Nobody would have really cared if they had gone to Apple, so why do it in the shadows.
tralalalalalala40 - Wednesday, October 8, 2014 - link
1) If you need a phone to last an inordinate amount of time get the charging cases.2) Hoax, they are invited to the ipad air 2 event: https://twitter.com/CB_Telzerow
3) false, if samsung released a 5000 ppi phone that was slow as hell (like the note 4 is http://appleinsider.com/articles/14/10/04/samsung-... ) how is that high quality? iPhone 6 was proven to have the best color which is more important than pixels you can't see.
4) yep, you can get a case for this if this is your thing. there is more choice with apple here since there are 1000x as many cases to suit your need. (with android you are locked in to what the device maker makes since there aren't that many niche cases)
5) thanks for the proof. no photoshop just choice of angles. go look at the apple website for many angles of the bulge if that is your thing.
6) in this case yes, it's not ergonomic to use the phone that way. it's why droid makers gave up on the kickstand
7) that number is for those that use google play (which accounts for <8% of all android phones, lol)
8) name another news site that had a going away article by one of the employees. especially one going to work for a company that requires employees to not bring attention to themselves (think non-compete)
thanks
gonsolo - Monday, October 6, 2014 - link
I'd like to see a benchmark of app startup times since this is where I have to wait most of the time nowadays.tralalalalalala40 - Wednesday, October 8, 2014 - link
http://www.cultofandroid.com/69538/iphone-6-multit...iphone 6 is blazing fast. note 4 needs 32 cores to compete.
falc0ne - Tuesday, October 7, 2014 - link
"In battery life, once again Apple has managed to successfully maintain good battery life despite a relatively small battery capacity". Seriously? Since when iPhone has a good battery life. You can never go through the day with one. Everyone knows that. Sorry guys but ain't buying that. If this is good, then what does that make Xperia Z3? Good of Thunder in battery? :)falc0ne - Tuesday, October 7, 2014 - link
**God of thunder:) autocorrect dictionary typo . anyway...you get my pointHook Em14 - Tuesday, October 7, 2014 - link
Wow...hardcore Android fanboys have to be some of the most ignorant, illogical, and pathetic people around.