The Samsung Galaxy S8 is no longer the South Korean firm’s best handset – in fact its been eclipsed twice: first by the Samsung Galaxy Note 8 and then by the Samsung Galaxy S9. Despite this, it’s still a very respectable pick to buy in 2018 for one very good reason: while its stablemates are still eye-wateringly expensive, the Samsung Galaxy S8 has enjoyed a number of price cuts and can now be had for as little as £440 outright or £23 per month on contract. 

And the big secret is that it’s not that much worse than either of the newer Samsung phones, which are both incremental improvements. Yes, the cameras are slightly worse, and the phone is a little slower (than the S9 – it’s roughly the same as the Note 8), but the bottom line is that this is a phone that still goes toe to toe with the best of them, over a year after its initial release.

Samsung Galaxy S8 review: What you need to know

The Samsung Galaxy S8 is a 5.8in flagship smartphone, which has a stunning design, blistering Snapdragon 835 processor, an incredible display with an 18.5:9 aspect ratio and an impressive camera that combined make it the best Android phone to date.

It is, however, let down by its battery life, which is a tad lower than its predecessor, the Galaxy S7. Still, if you’re looking for the best Android phone on the market, the Samsung Galaxy S8 is the one to get.

Samsung Galaxy S8 review: Price and competition

At launch, the Samsung Galaxy S8 was an eye-watering £610. Since, the flagship phone has dropped in price, and can now be found for £440. 

There’s also the very impressive Google Pixel 2 XL, now at around £629, the LG G6, which costs around £330, and the iPhone 7 Plus at around £649. If you’re willing to take a drop in screen size, the regular iPhone 7 costs £549.

Is it worth it? If you want the very best smartphone on the market, then yes. It has waterproofing and a camera that’s very good. It’s better looking than most of its competitors, such as the Google Pixel 2 XL, has a microSD card slot so you can expand the storage, and there’s more storage as standard as well. It’s better than the LG G6 and the iPhone 7, too, in almost every respect.

Even then you might say the price is tad high, and I hear you on that front. However, the Samsung is not alone in raising UK prices to this level, as you can see by the prices of its rivals. In fact, it’s part of a general trend that has going on for some time now. You might not like it, but this the reality right now; in a year paying £700 or thereabouts for a top-end smartphone will seem normal.

Samsung Galaxy S8 review: Design

There will be no Samsung Galaxy S8 Edge this year. Why? Because the Samsung Galaxy S8 is the device the S8 Edge would have been. Samsung’s new flagship is a phone with curved edges, and there’s no alternative.

This is a phone that feels great in your hand. It’s slim, smooth and light. However, it’s also slightly over-engineered. It’s a tall phone, which causes some problems during use. Hold the phone in your hand as if you want to unlock it using the rear fingerprint sensor and you’ll struggle to reach the home button without readjusting your grip. Grasp the device so you can reach the home button, however, and icons at the top of the screen become unreachable.

There is, at least, a 3.5mm headphone jack here, which is refreshing to see in the light of many rivals removing it. To take advantage of this, Samsung is also including a rather nice pair of AKG earphones in the box. These are certainly a cut above the no-brand earphones normally included with your average smartphone, delivering music with a clean, balanced sound that’s very pleasing to the ear.

They’re comfortable, don’t leak sound unduly at high volumes and, depending on how much you care about sound quality, could be all the headphones you need. Although it’s a small thing, it’s good to see such attention to detail from Samsung.  

Samsung Galaxy S8 review: Display

The screen on the S8 looks great, as you’d expect of a Samsung Super AMOLED unit. Colours are bright and vivid, and it’s readable in all conditions. In normal use in the browser, I recorded an impressive peak brightness of 569cd/m2 on a fully white screen with auto-brightness enabled, and 415cd/m2 with auto brightness disengaged; sRGB coverage is an impressive 99.9%; and contrast, since it’s an AMOLED panel, is perfect.

Perhaps more significant is that it’s the only mobile phone screen currently that’s been certified by the UHD Alliance to the Mobile HDR Premium standard. That means, like a high-end TV, it’s capable of playing back HDR (high dynamic range) video content, meaning brighter highlights – up to 1,000cd/m2, according to DisplayMate – for an ultra-realistic image.

As I’ve already mentioned, the screen is curved along both long edges on the Galaxy S8 and the Galaxy S8+ phones this year and this brings into play similar screen functions to previous Samsung Edge phones. Swipe a finger in from the right and you can access shortcuts to your favourite apps and contacts, plus various other Edge screen apps, including a compass and news feed. 

More significant is how the curved edges result in a wider display on a thinner phone. Edge apps are gimmicky; a display without bezel is genuine innovation.

Samsung Galaxy S8 review: Camera

Scroll up and look at those specs again. Notice anything unusual about this year’s camera? Yep, it’s exactly the same as the S7 – at least the specifications are. In an odd move, Samsung has stuck to the same 12-megapixel rear snapper complete with f/1.7 aperture, dual-pixel phase-detect autofocus and optical image stabilisation. The ‘if it ain’t broke, don’t fix it’ mantra rings true here.

There’s one teensy difference that sets it slightly ahead of its predecessor, though. Chipset improvements have seen an interesting new feature brought to light, in the form of multi-shot image processing. Every time you press the shutter button, the camera captures three frames, merging them together to form the sharpest image possible.

In terms of quality, there is a difference. In good light outdoors, noise handling sees as a slight improvement, there’s a tiny bit of extra contrast at the pixel level resulting in crisper-looking shots, and a refinement in colour reproduction. You have to look pretty hard to see the differences, though.

^ The Samsung Galaxy S8’s shot is on the left here, and shows better control over noise and better detail capture than the S7’s on the right (click through to view full screen)

The triple-frame capture makes more of a difference in low-light photography, where there’s significantly less smearing and far more contrast and detail than with the S7’s camera. It still isn’t as good as the results we’ve seen from the Google Pixel, but you definitely won’t be disappointed by the results.

^ In low light, the S8’s triple-capture technique dredges up more detail while keeping a lid on ugly image noise. However, there’s still plenty of softening and smearing due to noise reduction (click through to view full screen)

Samsung Galaxy S8 review: Security

There are six secure ways to unlock the S8:

Only one of these is new – the facial-recognition part – although Samsung has also repositioned its fingerprint reader due to lack of space on the front of the phone, and it also says that it’s improved the accuracy of its iris-recognition system this year as well.

To be frank, none of the Samsung’s biometric unlocking schemes is particularly convenient. Technically, they work well, including the facial recognition (most of the time). The problem is that you have to manipulate yourself to fit their requirements, which is more effort than it should be.

For example, when the S8 is sat on a table facing upwards, none of these options are available to you. You need to hold the device up and bring it to eye level for the iris scanner to kick in, or lift the phone and point the selfie camera towards your face. (Note, you can’t use both the iris scanner and new face recognition interchangeably; you have to choose one or the other.)

The fingerprint sensor is located at the rear of the phone, so you have to pick up the device to use that and, to make matters worse, the fingerprint sensor is located on one side of the camera, which makes it easy to smear the lens with your finger while fumbling around trying to find it. This is a misstep, make no mistake about it.

Samsung Galaxy S8 review: Battery and fast charging 

We all know the trouble Samsung has had with batteries of late, so maybe that goes some way to explaining why the battery performance of the S8 has gone backwards (compared with the S7 and S7 Edge).

The new battery is less effective than the S7, but not by much. In our battery test – playing a looped video with the screen set to 170cd/m2 brightness in flight mode – it lasted 16hrs 45mins. While that’s still impressive, it’s nearly an hour worse than the Samsung Galaxy S7 (17hrs 48mins) and two hours short of the S7 Edge (18hrs 42mins).

The Galaxy S8 does come with a fast charger, which goes some way to compensating for this. It charged the phone from 0% to 37% in 30 mins, which is pretty good, but not earth-shattering. The OnePlus 3T, for example, promises a “day’s worth of power in half an hour”.

It’s also worth noting that these tests were carried out with the phone at mid-resolution (FHD+, or 1,080 x 2,220). If you slide the adjuster in the settings menu all the way up to native resolution – the quoted 1,440 x 2,960 – stamina falls by 17%, and if you go the other way and reduce the resolution to HD+ (720 x 1,440) battery life rises by 3%. 

Back in mid-resolution mode, and using the S8 without any battery-saving modes in play, I found that normal use would see the level dip to around 30% by early evening. Turn on battery-saving mode to “MID” level and this figure rises by about 15%. But this comes at a price: reducing screen brightness by 10%, capping CPU speed, disabling background network use and disabling the handy always-on display.

Samsung Galaxy S8 review: Performance

You’d expect the Samsung flagship to have the fastest, most advanced internal components available – and that’s most definitely the case here. Us Brits and the rest of Europe get the S8 equipped with Samsung’s very own Exynos 8895 processor, while in the US handsets are equipped with the Qualcomm Snapdragon 835.

Both of these are the first ever mobile phone chips to be manufactured on a 10nm process, which promises greater efficiency and potentially faster performance, and both offer the possibility of connecting at up to Gigabit 4G/LTE speeds as and when the networks upgrade.

So how does the Galaxy S8 perform? Well, you won’t be surprised to discover that it feels super-fast to use and that it tops the tables in all the benchmarks as well. In the Geekbench 4 multi-core test, it raced past the LG G6 and iPhone 7, with only the Huawei P10 Plus coming close. 

As for graphics performance, it was a similar story. The S8 is a powerhouse for mobile games:

To be clear, these graphical tests are intense, with cheaper handsets routinely getting single-figure frame per second scores. While most 2017 smartphones will handle the majority of games on the marketplace, it’s pretty clear that the S8 offers far more future-proofing than any other device we’ve seen to date.

Samsung Galaxy S8 review: Bixby

Finally, to Bixby – Samsung’s much-vaunted AI assistant. Think of it as a counterpoint to Samsung’s Alexa, Apple’s Siri and the Google Assistant.

Voice control wasn’t ready to be used from launch, which seemed a mite strange. However, since the launch of the Galaxy Note 8, Samsung made the voice-assistant available to Galaxy S8 and S8 Plus owners.

I did find its photo-recognition to be rather interesting. The idea is that you can take a photo of something, Bixby will recognise it and give you several options such as information from around the web or shopping options.

The accuracy of this varies wildly. Bixby was completely flummoxed by a Nike trainer, but successfully recognised a bottle of Heinz Tomato Ketchup and, oddly, the cloisters of Durham Cathedral. I suspect GPS may have come to its rescue in the latter example.

Swipe left from the homescreen and you’ll be able to access the other thing Bixby offers – a tailored list of cards that summarise what’s happening across different parts of your phone. Here, you’ll get a snapshot of your calendar, the news, your Twitter feed, the weather – it’s a little like HTC’s Blinkfeed, but a long way as yet, from the maturity of Siri, Alexa and Google Assistant.

Samsung Galaxy S8 review: Verdict

In the early years, Samsung dumped the very highest specs and features into its latest Galaxy S device and dealt with the design thereafter.

Since the S6, that’s been changing and the Samsung Galaxy S8 represents the very pinnacle of Samsung’s design transformation. The S8 is all about its 5.8in 1.85:9 curved-edged display and its beautifully sleek finish. And, to give Samsung credit, the phone does look fantastic.

There are some strange things about the device this time around, however. Usability isn’t the best. The battery performance has gone backwards (if only a little), and unlocking the device has become trickier.

So yes, the Samsung Galaxy S8 is the fastest phone around. It’s definitely the sexiest, and the camera is better than it was last year, too. But is it worth the asking price? That’s for you to decide.

Credits | ExpertReviews

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