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iPhone 6S vs iPhone 6: What's new?


iPhone 6S vs 6 7

iPhone 6S vs iPhone 6: Is it worth upgrading to Apple's latest, and greatest, iPhone?

The iPhone 6S looks like a minor upgrade from the iPhone 6. But, that's actually far from the truth. In fact, it's the biggest jump we've seen from an 'S' labelled device.

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It has the same curvey build, same slightly ugly antenna lines on the back and same 4.7-inch, 720p display. But with a beefed up camera boasting 4K recording, 3D Touch and a quicker CPU.

But, if you've already picked up an iPhone 6 should you be getting your wallet ready for that tempting upgrade? Let's have a look at all the differences.

Read also: iPhone 7

WATCH: What's new in iOS 10?

iPhone 6S vs iPhone 6: Design

iPhone 6S: 7.1mm thick, 143g, series 7000 anodised aluminium back, Space Grey/Silver/Gold/Rose Gold

iPhone 6: 6.9mm thick, 129g, series 6300 anodised aluminium back, Space Grey/Silver/Gold

While it's still a great-looking phone, the iPhone 6 was probably the least visually appealing iOS device to date. A combination of plastic antenna bands, overly curved sides and a protruding camera lens combined to create something that lacked that typical Apple sheen.

Unfortunately, there hasn't been a dramatic change for the iPhone 6S. In fact, if anything the iPhone 6S design is marginally worse, thanks to its being 2mm thicker and 14g heavier. There's a worthwhile reason for that, though.

Related: iPhone 6S vs Galaxy S7

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One improvement is the upgraded build material – series 7000 aluminium as opposed to the 6300 series used in the iPhone 6.

This gives the phone a bit more rigidity and should ensure there's no repeat of the "bend-gate" scandal that took the gloss off the iPhone 6 Plus launch.

Compared to the iPhone 6S Plus, it's significantly easier to manage in one hand and remains one of the most durable, well built phones available.

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iPhone 6S vs iPhone 6: Screen

iPhone 6S: 4.7-inch, 1334 x 750 IPS LCD, 326 ppi, 504 nits brightness, 3D Touch

iPhone 6: 4.7-inch, 1334 x 750 IPS LCD, 326 ppi, 504 nits brightness

The iPhone 6S screen is identical to that of the iPhone 6 before it, which means it's a decent 4.7-inch 750p IPS LCD display. It's not the best screen on the market - that honour belongs to the Samsung Galaxy S6 - but it's generally a bright, vibrant, and crisp effort.

While the iPhone 6S's screen is nothing new, the biggest addition to the phone relates to the way you use it.

Similar to the Force Touch feature found on on the Apple Watch and latest MacBook, the newly named 3D Touch has found its most sophisticated application yet on the iPhone 6S.

Related: What can 3D Touch do on the iPhone 6S and 6S Plus?

iPhone 6S vs 6 17

3D Touch detects how hard you press on the screen, and Apple has used that to promising effect. Pressing hard on an Apple app icon will bring up short cut options, rather like right-clicking on a desktop.

You can also use it to preview links, emails, and photos. It'll take third party developers to really make 3D Touch part of the furniture, but even at this early stage it's easy to see what a transformational technology this will prove to be.

3D Touch is the reason why the iPhone 6S is a little thicker, while its new Taptic Engine (a sophisticated vibration motor) is the main culprit for it being heavier. It's well worth the weight.

Buy Now: iPhone 6 on EE (2GB) – £0 upfront, £22.99/month

iPhone 6S vs iPhone 6: Performance

iPhone 6S: Apple A9 64-bit dual-core 1.84GHz, PowerVR GT7600 GPU, 2GB RAM

iPhone 6: Apple A8 64-bit dual-core 1.4GHz, PowerVR GX6450 GPU, 1GB RAM

No iPhone yet has shipped with more than 1GB of RAM - until the arrival of the iPhone 6S. The benefits are obvious to anyone who has used iPhones in the past.

Jump back to a web page or app through the new-look multitasking menu - which can be activated with a 3D Touch input on the left of the screen - and they will still be in memory, ready to go. In the iPhone 6, they often have to load up anew.

Related: Live Photos explained - How do they work?

iPhone 6S vs 6 11

The next big upgrade is the processor, with the outgoing A8 chip replaced by the more powerful A9 version. This is a yearly upgrade that we expect from Apple, but the general performance of the phone is noticeably snappier.

CPU power receives a nice 70 percent boost, while GPU performance has increased by a whopping 90 percent. Given that no game on the App Store really stretches the iPhone 6, we'll have to wait a while to see the fruits of such GPU gains - though we're sure that slick 4K video capture performance is one beneficiary.

Related: How much RAM does a phone need?

iPhone 6S vs iPhone 6: Camera

iPhone 6S: 12-megapixel, phase detection, dual LED 'True Tone' flash, 4K video, 5-megapixel front camera

iPhone 6: 8-megapixel, phase detection, dual LED 'True Tone' flash, 1080p video, 1.2-megapixel front camera

If there's one thing you can bank on with a new iPhone, it's a new and improved iSight camera.

The iPhone 6 came with a fantastic 8-megapixel sensor, packed with larger pixels to allow more light into your shots. The results were impressive, but they were arguably bettered in certain areas by a smattering of Android devices, such as the Galaxy S6.

The iPhone 6S attempts to see off those challengers with an improved 12-megapixel version, which of course adds more detail to your images. That increase in detail is carried through to video, which is now full 4K.

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In fact, let's not skirt over this - the iPhone 6S shoots some of the smoothest, nicest 4K video we've ever seen from a smartphone.

On the front, the selfie FaceTime camera has been upped from a meagre 1.2-megapixel sensor to a more reasonable 5-megapixel version. You'll even be able to use the screen as a front-facing dual-tone flash, which makes for vastly improved selfies.

Meanwhile, the iPhone 6S also sees the debut of a feature called Live Photos. When taking a picture, the camera will automatically shoot a brief three second video snippet, capturing the moment more fully.

If it sounds like a bit of a gimmick, well, that's because it is. In fact, it feels like more of a tech demo for 3D Touch - pressing hard on a photo will 'play' it as a Live Photo (if available).

Buy Now: iPhone 6S on O2 (3GB) – £5 upfront, £29/month

iPhone 6S vs iPhone 6: Battery

iPhone 6S: 1715 mAh non-removable battery

iPhone 6: 1810 mAh non-removable battery

Sadly, making room for the new Taptic Engine that helps power 3D Touch means a small, 5 percent reduction in battery capacity from 1,810mAh to 1,715mAh.

Apple says that improved power efficiencies in iOS 9 and the new Low Power Mode ensure the iPhone 6S's battery life is similar to the iPhone 6, and it's largely right.

Apple 3D Touch

We haven't noticed any great disparity between the battery performance of the two phones, and that Low Power Mode enables you to extend the lifespan of both phones well beyond what a non-Plus iPhone could manage in the past.

Related: Best iPhone 6S deals

iPhone 6S vs iPhone 6: Fingerprint scanners

iPhone 6S: Touch ID

iPhone 6: Touch ID

Once again, Touch ID is present, enabling you to unlock your phone with your digit. Apple has upped its speed this time, though, making it twice as fast. It also seems to be more consistently accurate.

This added speed and accuracy really is noticeable in day to day usage, which is a massive plus when you consider how often you use Touch ID to unlock your phone - not to mention the growing support for Apple Pay.

Touch ID

It's got to the point with the iPhone 6S where it's actually quite tricky to hit the home button to see the time without unlocking the phone, so efficient is the new and improved Touch ID at doing its job.

A number of Android rivals had caught up with Apple's trailblazing biometric identification system in the two years since it made its debut in the iPhone 5S. The iPhone 6 didn't really improve things at all, so it's good to see that Apple isn't resting on its laurels here.

Touch ID on the iPhone 6S jumps straight back to the front of the pack.

iPhone 6S vs iPhone 6: Storage

iPhone 6S: 16GB / 64GB / 128GB internal storage, non-expandable

iPhone 6: 16GB / 64GB / 128GB internal storage, non-expandable

The storage options on these two iPhones are identical, but the presence of a 16GB entry model is less excusable with every passing iteration.

16GB simply isn't enough for a modern high-end smartphone - particularly given that the iPhone 6S now takes and stores considerably larger photos and videos than before.

iPhone 6S vs 6 13

Apple needs to ditch the 16GB model and pick up the 32GB model it dropped a while back as the new entry point. Preferably starting with the iPhone 7.

Related: Best iPhone 6 deals


Apple says of the iPhone 6S that "the only thing that's changed is everything."

One look at the apparent doppelgänger will have you scoffing at that assertion, but there's more truth in it than you might imagine.

The iPhone 6S is built of a completely different, tougher material than the iPhone 6. Meanwhile its screen, while identical to look at, contains a new input system that will have a pronounced influence on phone design over the coming years.

3D Touch is a great new feature that's easy and fun to use, and which speeds up pretty much every basic smartphone activity.

Talking of speed, it's almost alarming how snappy the iPhone 6S feels. The iPhone 6 was no slouch, but the doubling up of RAM, significantly faster processor, and markedly improved Touch ID system makes its successor feel tangibly faster.

The iPhone 6S is flat out better than the iPhone 6 in several ways that matter, with only a slightly tubbier construction going against it. If you're in the market for a new iPhone, it really is worth the extra money if you can afford it.

Share your thoughts on the iPhone 6s vs iPhone 6 in the comments below.


September 27, 2015, 5:51 pm

"the iPhone 6 was probably the least visually appealing iOS device to date"
That's a strong opinion. In my opinion the 6 was the most visually appealing iphone to date, I think the metal design sleek and simplified.


September 29, 2015, 12:30 am

4K video? It's been going in sony xperia since last year.


October 26, 2015, 2:55 pm

Overly curved sides? How does one even overly curve a side? Make it a circle?

Bulk Flash Drives

November 1, 2015, 12:14 am

7.1mm minus 6.9mm equals 2mm? Author has major math problems

Moatasim Hisham

November 14, 2015, 2:40 pm

dude, what u smoking?

Bulk Flash Drives

November 14, 2015, 5:46 pm

well, your major problem is your brain degradation because of smoking. I m not a monkey to inhale smoke. Your reply also states that you have a major math problems, since you did not even see the mistake after i pointed it out.

John Bedner

November 14, 2015, 10:39 pm

Wow, you seem like such a great human being. Remind me never to buy one of your Flash drive products!

Bulk Flash Drives

November 14, 2015, 10:44 pm

Couldn't care less if you buy ONE of that or not. That company is B2B wholesale.

Bulk Flash Drives

November 14, 2015, 10:47 pm

And at least I am smart dude, I do not want to face questions like "dude what u smokin". None of you even noticed that big mistake in this article. There is a huge difference between 2mm and 0.2mm. Authour obviously has no clue. And now you bite me... for what? For stupid guy leaving a stupid reply to my comment? I am sorry, I don't have to show him love.


December 6, 2015, 6:45 pm

i think the 16GB is perfectly fine............ i'm a regular phone user as well, let alone a student... just back up your photos on a computer


December 18, 2015, 7:59 am

Haha, american(t)s and the metric system.

Christopher P. Singleton

December 19, 2015, 7:55 am

And now it's finally on a device that people actually want to buy.

Raffaele Pacci

December 27, 2015, 11:40 am

it is madness to sell (and to buy) a phone that can make shooting in 4K still with storage of 16 gb! Apple please,stop with the 16 giga please!!!!Entry level phone?Noooo...unusable Phone...

Ben Coxon

January 16, 2016, 9:23 am

Who gives a shit, I've had a new iPhone for every year of release because their service is second to none!
I've had Samsung and Nokias, sent them off for repair direct to the manufacture and been without the phone for weeks.
Took the iPhone to their store, the lady looked at it and said she'll replace it with a new phone as its under 6 months, helped me back up to iCloud on their wifi, reset my phone to factory then gave me a brand new phone and help me reload everything, took 2 hrs and job was done.
No waiting 2-3 weeks with a bill at the end!


February 4, 2016, 12:34 pm

You can be smart but why are you wasting your time initiating a conversation online about a decimal error? Everybody reading the article understands what the author means.

Aleksas Siknius

February 5, 2016, 5:25 pm

Math problems from the author 0,2mm thicker not 2mm:)

BJ Van Gundy

February 12, 2016, 5:58 pm

What do you keep doing to your phones? During 8 years of Samsung phone owning I've never had to get one serviced and I upgrade every year as well has have my wife on Samsung.

Just pointing out that having to get service as often as you are suggesting is highly unusual.... for ANY phone brand.

Ben Coxon

February 12, 2016, 6:36 pm


I have at no point said that I've been for regular service, simply stated the one perfect occasion that I have had with Apple and then compared that with the many occasions where I owned other makes and had to send them off.

Just because I have a new phone every year does not mean there is anything wrong with the old one.

BJ Van Gundy

February 12, 2016, 7:35 pm

I didn't mean anything by it Ben... Sorry if I came across that way... Just sounded like you were having significant bad luck on a regular basis... I agree that Apple makes it convenient with their stores.... I'm just an Android guy (daughters have iPhones) that never has to get my phones serviced at all... gladly because of the 2 week thing. Cheers!

Murat Atmaca

March 5, 2016, 11:17 am

Are you working at Samsung BJ? I do not know anyone who could have used a samsung device more than 3 or 4 years. Even if we are speaking about the Samsung phones, that seems unbelievable.

Murat Atmaca

March 5, 2016, 11:21 am

Have you noticed that there is no 32GB option for newer iphones? They already knew it. The 16GB versions are for corporate clients and contract sales. I allways purchase 64gb version.

Giancarlo Chicco

March 23, 2016, 12:07 am

asswipe has spoken

Giancarlo Chicco

March 23, 2016, 11:41 am

impressive intellect

Blackberry King

March 24, 2016, 12:08 am

Blackberry fan here, checking in to see what up in the world. Back to the cave.


April 2, 2016, 5:01 pm

I had same problem with Samsung "support". BT sucked on new Note 5. Went through all trouble shooting on phone and they said send it back and we will fix it as soon as we can. Received it back in 10 days...BT better but still not what you would expect from a $700 phone. Same process as above 2 more times. Each time BT got better. It seemed like they were waiting for me to give up and accept crappy BT. I called AT&T and they replaced it with a refurb that now works great, just like the first one should have. Support was a joke at Samsung. No more Samsung for me.

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