Security for Informatics

Apple's tagline for the iPhone 6S is 'the only thing that's changed is everything', highlighting that the brand knows this is a phone that looks an awful lot like 2014's model.

It makes sense that Apple would try its hardest to show that, despite the 



handset looking identical to the iPhone 6, there have been loads of changes under the hood that make this an attractive phone in its own right.

The chassis is stronger, the camera sharper – with a new Harry Potter-esque way of capturing your snaps – and there's even a completely new way of interacting with the screen. On paper, it's an impressive upgrade.

See the iPhone 6S in action in our video review:

But when it looks identical to the iPhone 6, people will be desperate to know if the iPhone 6S is enough of an upgrade to justify the price. While the upgrades seem great, is it worth going all the way up to the iPhone 6S, or would the 6 do?

In terms of raw price, we're in a weird situation now. Samsung and the rest of the Android crew have been slowly ratcheting up the price of their high-end phones to the point where they're actually eclipsing the iPhone 6S at launch.

While Apple put its phone into a market where the Galaxy S6 was significantly cheaper there are new boys on the block in the for of the Galaxy S7, LG G5 andHTC 10. Either way, the iPhone 6S has a lot to live up to.

In the UK you'll likely have to part with between £50 and £100 upfront to get the phone for £36-£38 per month (if you want a decent slug of data and minutes) with the 6S starting at £539 (US$649, AU$1,079) for the 16GB model, £619 (US$749, AU$1,229) for the 64GB model and £699 (US$849, AU$1,379) for 128GB.

It starts at $649 if you're looking to pick it up off contract in the US, with the new $32.45 monthly cost if you're thinking of getting locked into Apple's yearly upgrade plan.

In reality though, the question of who this phone is aimed at isn't that hard to answer: for most people stuck on the iPhone 5S it's clearly the upgrade they're considering, although the recent arrival of the iPhone SE will surely tempt some of those users who want to stick with the smaller form factor.

Beyond that there's the disgruntled Android owner who's tired of looking at the slicker app experience Apple offers and seeing their own handset looking sketchy in comparison.

(Of course, there are a few people that tried Windows Phones as experiments, but they'd probably be happy with just about any other phone if they're still using a Nokia Lumia 930).

The issue Apple is trying to solve with the iPhone 6S (and the 6S Plus) is how it can convince users, especially in a market saturated with really rather brilliant smartphones, that the 'S' variant of the impressive iPhone 6 is a worthy phone to upgrade to in its own right.

When something is so visually similar, the onus is on the brand to show that the upgrades are really worth the extra cash.

Even if Apple keeps users within its own ecosystem there's every chance they'll look at the iPhone 6, which is now much cheaper – so it needs to make sure things like a stronger chassis, animated photos and a new pressable screen are worth the extra outlay when both phones will still work perfectly well in a couple of years' time.

You've probably already heard, but the iPhone 6S is almost identical to the 6 in every way when it comes to the chassis. There are some very subtle differences, such as a slightly thicker frame and a little more heft, but it's so slight that I kept getting the two mixed up when doing side by side comparisons.

All cases fit both phones just fine too so, apart from a small S logo on the back of the phone, nobody is going to notice you've got the latest iPhone.

But there will be lots of you upgrading from the iPhone 5S, and in that case you'll need to be ready for a really big design change. The metallic chassis feels really nice in the hand, with a ceramic-like feeling on the outside (although if it's anything like the 6 then this can scuff over time if you keep it in a pocket with keys, so you'll need to think about the kind of case you'll want to keep it safe).

If you're not ready to take the leap to the new, bigger form factor, Apple has the new iPhone SE to satisfy your 4-inch cravings.

One of the things that Apple is touting is the fact the iPhone 6S is made of 7000 series aluminum, which is the strongest thing it's ever used in iPhone construction. The obvious connection people will make is with 'Bendgate', when some users claimed their new phone had developed a slight curve in their pocket without much pressure.

The common belief was that these phones began to twist when placed in a rear pocket and sat upon. While it was proven that other metal phones actually were worse when it came to bending Apple didn't come out of the controversy well.

So it's no surprise that, while the company won't admit the real reason, the new iPhone is strong and never going to bend with such pressure. However, I feel like that we shouldn't feel happy our phones no longer bend – this seems like one of the minimum expectations I'd have of a smartphone, not a compelling reason to buy it.

The front of the phone is now covered in a new level of strength, with a glass that's far less prone to shattering when dropped on the floor – now that's something I can get behind. We've not drop tested it - we'll leave that to some other, braver reviewer - if the screen is stronger the responsiveness hasn't dropped.

In the hand, the iPhone 6S still feels like a dream. Even with the extra 14g over the iPhone it feels lightweight, easy to manipulate and really warrants the price. Samsung's new Galaxy S6 Edge invokes the same kind of feeling, and with it you don't mind spending the extra money over a more budget phone.

In terms of design, if you've seen the iPhone 6 then you've seen the 6S. The volume buttons, the power key, the silencer switch and the speaker are all in the same place as its predecessor, with the grille at the bottom very easy to cover when you're watching videos or playing games in landscape.

If you're using the 5S, this is leagues ahead. The construction is good, the materials solid and there's no wiggle in the buttons at all. While you probably never bent your 5S, the idea that the iPhone 6S is stronger will probably please you, however unnecessary the claim is.

Apple's not done anything great with the design of the iPhone 6S, but the iPhone 6 was such a well-created phone that using the same chassis isn't going to harm its chances of success.

However, combined with the higher price and the continued presence of the iPhone 6, I wish we were at least seeing some retooling of the phone to make it seem more attractive.

The screen on the iPhone 6S seems to be identical to the iPhone 6's: we're talking a 4.7-inch affair with 750p resolution, which keeps it firmly in the 'Retina' range that the firm debuted all the way back with the iPhone 4.

It's hard to rate the display, as while it fails on resolution (quite spectacularly actually - phones a seventh the cost of the iPhone 6S offer 1080p screens, Samsung's cheaper phone has four times the resolution of the 6S and Sony has, inexplicably, launched a 4K phone) it doesn't drop too badly on performance.

The iPhone 6S display is clear, bright, laminated to the glass and insanely colorful. The first time I saw it on the iPhone 6 I thought it was a fake picture stuck on top of a dummy unit, such was the clarity on offer.

So to use the same thing on the iPhone 6S makes sense - after all, the lower pixel count means it can be thinner and the battery can last longer, thanks to having fewer pixels to drive.

But there are some things missing: for instance, the contrast ratio (the difference between the brightest and darkest parts of the screen) is still poor, with the black areas looking a little grey. Samsung's Galaxy range predominantly uses OLED technology, which offers 'true' blacks and high brightness and packs a much better visual punch, and would have suited the iPhone down to the ground.

The sharpness in side by side tests is clearly lower too - the 326 pixels per inch is very low even compared the 401ppi of the iPhone 6S Plus - and most other models are over 500ppi to bring really, really clear displays.

Given OLED technology is used in the Apple Watch - and admittedly it looks brilliant - it's a shame the same thing couldn't have been done with the iPhone 6S.

It's important not to get too hung up on screen resolution in a phone - after all, if it's not serving a purpose (hey, Sony?) then it's just wasting battery. But the industry has moved on, and the higher pixel densities on offer are starting to really bring something to the table, with apps and general use looking pin sharp.

After the massive, and much needed, change in design direction Samsung took with the Galaxy S6 and Galaxy S6 Edge in 2015, all rumours pointed to things staying pretty much the same for the Galaxy S7.

Well, it’s not like Apple, HTC or Sony make drastic changes to their industrial design every year.

And that’s exactly the case here. Place the Galaxy S7 next to the S6 and you’d be hard pushed to instantly pick which one is which. Frankly, this doesn’t bother me in the slightest. The S6 was already one of the best-looking Both the front and back are covered in Gorilla Glass 4, while a metal rim snakes in between. Two volume buttons sit on one side, with a lock/standby switch on the other. It’s a clean look, with the back free from any markings aside from a Samsung logo.

The camera lens now sits just about flush with the glass body too. This might seem a small change, but it makes a big difference. I can now tap out an email with the phone flat on my desk without it jumping and rocking from side to sidephones around, and the Galaxy S7 There is one notable design change on the back – the sides now curve ever so slightly, just like they did on the larger Galaxy Note 5, and it makes a huge change to how the Galaxy S7 feels. While the S6 felt harsh and rigid, the Galaxy S7 slips softly into my palm. It’s so much more ergonomic and makes picking it up off a flat surface much easier.

And the way the sides almost melt into the glass just looks damn cool. Good job, Samsung.

It’s an absolute fingerprint magnet, though. After a few minutes of use, the entire back becomes a grubby mess that needs wiping down with a microfibre cloth.

Along the top is the Nano SIM tray, which now holds a microSD slot, plus a microphone. The bottom houses the headphone socket, another microphone, a speaker and a micro USB port for charging.

That speaker is one of the few missteps on this phone. It’s downward-facing, gets easily blocked by my hands when playing a game and it sounds tinny and distorted at high volume. I guess front-facing speakers weren’t included so the screen surround could be kept minimal, but it’s still a disappointment when a speaker sounds this bad.

It had been suggested that Samsung would make a big switch to the new, reversible USB-C connector that’s already being used on the Nexus 6P, OnePlus 2 and LG G5, but it hasn’t.

To be honest, USB–C is more of a hindrance than a help at the minute. You can’t use any of the cables you’ve picked up over the years and it doesn’t necessarily mean faster charging. It does mean the S7 isn’t quite so future proof, though.

The front again has a clean look about it. The elongated home button still sits under the display, and it still juts out ever so slightly, rather than being concave like the iPhone’s. For me, this is a plus – it feels better pressing the Galaxy S7’s home button than the iPhone 6S’s – but a couple of the TrustedReviews team think otherwise. They’re wrong, of course, but it’s interesting how such a small design choice can split people.

Related: Everything you need to know about the Samsung Galaxy Tab S3

Housed inside the home button is a really fast and accurate fingerprint sensor that matches the iPhone 6S’s for speed, but it’s marginally slower than the Nexus 6P’s. That difference is minimal, though, and something you would only notice if you had the two side by side.

It’s clear from the Galaxy S7 that Samsung is listening to customer feedback and bringing back favoured features from the Galaxy back catalogue. MicroSD expansion is one, and IP68 water resistance is another.

The latter is by no means a vital feature, yet it’s impressive that it’s been added without any forced changes to the design. There are no flaps, there’s no added thickness and no extra space between the display and glass.

What does an IP68 rating mean? Well, you’ll be able to dunk the Galaxy S7 into 1m of water for up to 30 minutes without damaging the phone. Or, if you’re like Lil’ Wayne, you can douse it in multiple bottles of champagne. Obviously.

It’s become a cliche that phones get thinner and thinner each year, but that isn’t the case with the S7. It’s marginally thicker than its predecessor and has a nice weight to it. It feels dense and expensive, though not as delicate as you’d expect from a phone with glass on the front and back. I dropped it about four foot onto a hard floor and it survived without any problems.

Samsung has stuck with the same 5.1-inch display, there’s the Galaxy S7 Edge if you want something bigger, and it’s refreshing to have a flagship phone that feels this compact and easy to hold. It’s roughly the same size as the iPhone 6S, which only has a 4.7-inch screen, and much smaller than top-end devices from LG, Huawei and Google.

Coming from using the S7 Edge, I was initially a little underwhelmed by the Galaxy S7. It didn’t quite have that wow factor its curvier sibling does. But after a while it became my favourite phone to use on a daily basis. It feels great, is the perfect size and doesn’t make any sacrifices – aside from maybe the speakers – to get there.

Related: Best Android smartphone 2016

Close to perfection. That’s the best way to describe the display on Samsung’s Galaxy S7.

Not much has really changed from the outgoing S6, but this still holds up as the best screen on a smartphone.

It’s still a 5.1-inch QHD panel with a 2560 x 1440 resolution, and just like every Galaxy flagship so far, it uses Samsung’s Super AMOLED tech, rather than the more common LCD.

AMOLED displays are a lot better at showing off blacks than LCDs. Instead of looking slightly grey and washed out, the blacks here are inky deep. Some say AMOLED screens produce colours that are too oversaturated, so reds will look way brighter than they should, but that isn’t much of an issue here. And if you really prefer things toned down, there’s a picture setting for that.

Having so many pixels jammed into a relatively small space means you can’t really spot one pixel from another, and that sharpness makes everything from gaming to watching YouTube an absolute pleasure. Play a round of Alto’s Adventure or Monument Valley on this display and you’ll instantly be drawn in by the crisp details and vivid colour reproduction.

I wouldn’t normally watch a film on a screen this size, but the panel here is so gorgeous that I can’t help getting lost in it.

The one thing that has changed this time around is the addition of a new ‘Always-on’ display.

Due to the way AMOLED screens work, they don’t need to light up the whole display all of the time. They can select individual pixels and just show them, keeping everything else off. So, when the Galaxy S7 is locked it can still show the time, date and a couple of bits of other information on the screen without eating through too much battery.

It’s a nice touch, and great for quickly checking the time when the phone is resting on your desk or a bedside table. But it’s a good software update or two short of being really useful.

First off, it’ll only show notifications from a few apps – it’s currently limited to Samsung’s own Messages, Email and Phone. If you, like me, regularly use WhatsApp, Gmail and Facebook Messenger, none of these will appear. That’s a shame, and makes the notification side of things a lot less useful.

I’d also like a lot more control over the mode. There’s no setting to alter the brightness, which causes some problems when you’re in a darker room, and aside from choosing whether or not you want a calendar showing, there’s no customisation allowed.

It uses extra battery too. About 1-2% per hour, so 15% or so per day. It’s just about worth it, but it could be so much better.

My only gripe with the display on the Samsung Galaxy S7 is that, in sunny conditions, it can be quite hard to read – certainly more so than the LCD panel on the iPhone 6S. Even with the brightness jacked all the way up, you’ll have to tilt the screen or find some shade to stop yourself squinting at it.

Thankfully, unlike the Galaxy S7 Edge, it has great viewing angles and doesn’t suffer from white backgrounds getting tinged with blue.follows suit.