Apple iPhone 6s Plus: the specs review

Ahh, nothing like a new iPhone reveal to get everybody all worked up! At a glance, the iPhone 6s Plus has all it takes to grab additional percentages of market share from both the "phablets that aren't Apple's" and the "tablets, including the iPad" sector. Not all hope is lost, though, for Android large-screen smartphones look and feel better than ever, while the Cupertino masters have done what they felt was due to invigorate the slow-moving iPad.

Anyway, we'll be doing an initial review of the new iPhone 6s Plus' spec sheet, mostly taking a look at the improvements made in the smartphone's display, processor and camera components. These are the areas that Apple doubled down on, and for all we know, the iPhone 6s Plus is every bit of an improvement over its very successful predecessor. Come on in, let's have a look!


Not much has changed on the surface since the iPhone 6 Plus first introduced an enlarged variant of the iPhone 6's look, which boasted a laminated screen and comfortably round corners. This time around, though, Apple is beating its chest for incorporating Series 7000 aluminum instead of the anodized aluminum it's been traditionally using. Anodizing increases the material's resistance to corrosion and wear by adding an oxide layer outside of it. Combined with dye, the process is also used for coloring metal.

7000 Series aluminum, however, is a different alloy that combines aluminum, zink, and magnesium for a significantly tougher, but harder to work with material. Apple altered the recipe in unspecified ways, creating a material 60% stronger than most aluminum at one-third the density of stainless steel. The stuff is also used in the Apple Watch Sport and the iPhone 6s. Hopefully, it's going to make the hablet less prone to damage such as, you know, bending and such.

At 5.44 x 2.64 x 0.27 inches (138.1 x 67 x 6.9 mm), the iPhone 6s matches the size of its predecessor. It's certainly one of the most reasonably sized smartphones around, even if the screen to body ratio of 66% isn't exactly an example of efficiency.


Save from the addition of pressure sensitivity, which we will refer to in a minute, the screen on the iPhone 6s Plus is virtually unchanged from what the one before it. This is a 5.5-inch panel with the ubiquitious 1080x1920 resolution, which accounts for a sufficient pixel density of 401 pixels per inch. It's a fine example of an IPS LCD screen, even if its properties don't have the sheer impressiveness of Samsung and LG's Quad-HD displays, not to mention the Sony Xperia Z5 Premium's outlandish 4K screen. While we don't the have exact display measurements, we expect what has become typical of Apple screens — a tolerably cool color temperature, nicely evened out color balance, near perfect gamma response, and fantastic viewing angles. It is these characteristics, and not obscenely high pixel counts or super wide color gamuts that make for a high quality display, though we don't have anything much against the latter!

Now, about that Force Touch thing we mentioned. Borrowed from the new MacBook's trackpad and the Apple Watch before it, the technology relies on tiny electrodes surrounding the display that let users deliberately choose between a light tap, a press, and a "deeper" press, triggering a range of specific controls. In the Apple Watch, we saw how pressing firmly on its screen brings up additional controls in apps and allows for additional interaction. Right now, the technology is merely being toyed with and emulated by other manufacturers, such as Huawei, but as a the first new frontier in interactive surfaces since multi-touch, its potential could expand to building fingerprint sensors and other interactive elements inside screens. It could potentially let Apple get rid of the home button one day, although removing such a long-standing element would have to make for quite the decision.

Processor and Memory

The iPhone 6s Plus introduces a major hardware upgrade in the form of the new A9 chipset and an increase to 2GB of RAM memory. The A9, which is fabricated by Samsung and TSMC's foundries, has not been properly documented yet. However, we know that the chip is produced on a 14nm or 16nm process, rather than the A8/A8X's 20nm process. Thanks to that, the A9 packs more transistors on the same surface area as the A8, theoretically boasting better performance and power efficiency characteristics.

Some early benchmarks that originate from a Chinese source suggest that the A9 enjoys an around 19% jump over the A8, and a 6% improvement over the A8X in single-core performance, in addition to a 69% multi-core improvement over the A8 (8% from the A8X). That sounds like a steady growth in processing power, certainly in the ballpark of what could be expected of Apple. Moreover, we've heard that the A9 relies on a quad-core setup, with two cores pushed to 1.7GHz and two cores at around 1.2GHz. The A8X before it uses a triple core design, so this leap is certainly within the realm of possibility.

To provide another perspective, the Apple A9 could very well be in the same league as the 2009 iMacs, 2010 MacBook Pros, and 2011 MacBook Airs in terms of raw performance, yet more power-efficient to the point of not requiring external cooling. However, this is mostly speculation we're dealing here, so hold your horses until we're able to throw more reliable information your way!

Memory-wise, the iPhone 6s Plus comes with either 16GB, 64GB, or 128GB variants. It still uses eMMC solid-state technology, so don't expect SSD-like reading and writing speeds.


The iPhone 6 Plus' camera setup was somewhat aged upon the handset's very reveal, so an upgrade in this important category was long due. What do you know, Apple finally delivered — a restrained, but certainly well thought-out 12MP rear camera bump (up from 8MP), and a comparatively generous increase to 5MP for the front cam (from just 1.2MP). Photo quality improvements aside, the most notable new addition is 4K (3840x2160) video recording, which puts the iPhone's camcorder on par with Android flagships.

The 12MP imaging sensors are sourced from Sony, and there's little that we know about them at this point, other than that they incorporate RGBW subpixel technology for better low-light performance. This technology uses an extra white (W) subpixel, arranged alongside the RGB sub-pixels, to compensate for the smaller-sized pixels in the sensor. We've seen a sensor of this type in action with the Huawei P8, and we came off pretty satisfied with the way it handled itself across different scenarios. However, RGBW itself didn't make for stand-out photographic performance in any regard. It will be up to the ones responsible for the camera algorithms at Apple to make the most out of the camera sensor.

A notable difference between the iPhone 6 Plus and its minute compatriot is the addition of an optical image stabilization module in the former. In the large one, it is enabled while taking photos, but video shooting employs software image stabilization. It's probably the same ordeal with the iPhone 6s Plus.

Battery life

The iPhone 6s has a battery at about 2900-3000mAh capacity. Its predecessor managed to rack up a score of 5 hours, 22 minutes, which is far from the Galaxy S6 edge+'s impressive result, but still decent for most people. Unfortunately, the iPhone 6s couldn't catch up to the fast charging developments of Android for some reason. Maybe Apple is being complacent. Maybe integrating fast charging or wireless charging comes at the expense of something else that's more valuable to the typical iPhone user. Only the gang at Cupertino knows, but regardless, fast charging tech is pretty high on our list of iPhone demands, and the same goes for any other up and coming expensive smartphone, actually!


The iPhone 6s Plus goes pretty far for what's considered an incremental upgrade by Apple standards. The increase in hardware and camera power is quite welcome, and the addition of Force Touch makes for a nice usability improvement, not to mention being a classic case of Apple introducing polished (hopefully) new technology for users and app developers to tinker with. For what it is, the iPhone 6s Plus makes for a good, meaningful yearly upgrade over its predecessor.

Related phones

iPhone 6s Plus
  • Display 5.5" 1080 x 1920 pixels
  • Camera 12 MP / 5 MP front
  • Processor Apple A9, Dual-core, 1840 MHz
  • Storage 128 GB
  • Battery 2750 mAh(24h 3G talk time)



1. DirtyDan23

Posts: 280; Member since: Aug 12, 2014


2. JMartin22

Posts: 2414; Member since: Apr 30, 2013

They really need to redesign their iPhone products now. The inefficient design engineering has put them on the back burner and now many Android rivals incorporate the same premium materials, with more aesthetically pleasing designs. That sub-70% screen-to-body ratio isn't cutting it.

6. darkkjedii

Posts: 31760; Member since: Feb 05, 2011

Sales figures say the opposite.

10. Ruturaj

Posts: 1484; Member since: Oct 16, 2014

Sells is not a measure, at least being a customer, iphone needs a redesign as iphone has smaller battery than S6 still fatter, screen to body ratio making 5.5 inch screen sized 6/6S plus larger than phones with 5.7 inch screen. If we go by sales then we don't need 2 gb RAM or multi window as well. I think 6 looks good but 6 plus looks weird to me, don't know why.

12. JMartin22

Posts: 2414; Member since: Apr 30, 2013

Sales can only mandate the authenticity of a product so much. There are factors that aren't considered by consumers when they purchase an exceptionally marketed device. They may or may not know better based on certain misconceptions. One thing is for certain, the price you pay is majorly based on the access of services and ecosystem in the form of Apples proprietary operating system. But their hardware components in some respects is deeply lagging and is no longer industry leading. They still utilize some of the best graphics processors in the business though. But the design has become pretty subpar overtime, as it hasn't evolved beyond increasing screen size. I am sure consumers wouldn't mind and would keep buying an iPhone with design improvements.

3. EC112987

Posts: 1216; Member since: Nov 10, 2014

2gbs of ram if thats true ill def preorder it Saturday

5. darkkjedii

Posts: 31760; Member since: Feb 05, 2011

So will I, just gotta confirm it.

9. VZWuser76

Posts: 4974; Member since: Mar 04, 2010

I'll play devils advocate and say that if they had increased the RAM, they would've touted it. Also a later article on PA said they actually put in a smaller battery than last year's model. Now while they're showing the same battery life out of a smaller battery, if they had kept the size the same or increased it, they would've had much better battery life. I wish these manufacturers would stop the race to be the thinnest and try to focus more on battery life. The phones are thin enough to fit into pockets, rather than going thinner, make them run longer.

13. darkkjedii

Posts: 31760; Member since: Feb 05, 2011

But they never announce ram.

14. Guaire

Posts: 897; Member since: Oct 15, 2014

It's thicker.

21. VZWuser76

Posts: 4974; Member since: Mar 04, 2010

The added thickness could be due to force touch for all we know. What we do know is that, in the 6s case at least, is that the battery is smaller than last year's model. Check out post 11 where I've linked to the story right here on PA that talks about it.

22. fyahking

Posts: 1146; Member since: Jan 28, 2015

It's for bendgate!

4. PopeFrancis

Posts: 111; Member since: Aug 05, 2014

I haven't seen anywhere but in Phonearena, the 2 GB confirmation. Could someone please post a link? I would really appreciate it, because to be honest, I suspect the RAM is still 1 GB.

7. DillWeed

Posts: 150; Member since: Mar 14, 2014

The battery isn't 2900. Come on PA

11. VZWuser76

Posts: 4974; Member since: Mar 04, 2010 The new battery is apparently 1715mAh (last years iPhone 6 was 1810mAh). So they went backward in terms of battery size, and PA was way off in stating 2900-3000mAh. Crack reporting there by PA. If you don't know with any certainty, just say so rather than print supposition as fact.

18. VZWuser76

Posts: 4974; Member since: Mar 04, 2010

I should iterate now that I reread my post that I didn't think that the 6s Plus had a 1715mAh battery (that's the regular 6s). What I meant was that since they didn't increase the battery capacity in the 6s and actually decreased it, the same will be true for the Plus.

15. Guaire

Posts: 897; Member since: Oct 15, 2014

2 weeks ago some Chinese source claimed 6s coming with a 1715mAh battery and 6s Plus 2750mAh. Considering turns out they were spot on about 6s' battery capacity, probably they were right about 6s Plus too.

17. VZWuser76

Posts: 4974; Member since: Mar 04, 2010

They were wrong about last years iPhone 6 battery. They said it had 1800mAh when it had 1810mAh.

8. jeroome86

Posts: 2314; Member since: Apr 12, 2012

The ram could be a deal breaker for me. Surely they put 2 gigs in their.

16. j2001m

Posts: 3061; Member since: Apr 28, 2014

If they added 2g. They will have gone on about it like its the best thing going

19. CosmicLion

Posts: 15; Member since: Sep 15, 2014

What is the point of having good specs when iOS cannot do real time multi tasking.

20. T-rex unregistered

"It's certainly one of the most reasonably sized smartphones around, even if the screen to body ratio of 66% isn't exactly an example of efficiency" and "a tolerably cool color temperature..." Here we go again

Latest Stories

This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit for samples and additional information.
FCC OKs Cingular's purchase of AT&T Wireless