Review: Samsung Galaxy S4 (GT-I9500)

The Galaxy S4 is flying off the shelves all around the world. We’ve had the device for a while now thanks to Samsung Mobile UK, and it’s about time we shared some of our thoughts and opinions about the device. We’ll go over some of the key features offered by the Galaxy S4, and discuss how useful we think they are and where this device sits in the current market. Of course, this is just our opinion, so make sure you let us know what you think in the comments!

For a full tech specs, check out our compare section and select the model relevant to your country.

The Box – What’s Inside


It’s pretty silly to include a “box” in a review for a phone. Ultimately this is just a container which the Galaxy S4 arrives in. However, the ritual of unpacking and unboxing has become so much a part of receiving a new device that it’s hard avoid.


Fortunately for the Galaxy S4, it comes in fairly interesting box (as far as boxes go!). Everything is made of 100% recycled and recyclable paper and cardboard apart from a couple of bits of plastic that contain the headphones protect the device. Furthermore, the ink which is printed on the box is made out of full biodegradable “Soy ink” which is certainly a nice touch!


For versions of the Galaxy S4 outside of Korea, you will get the basic device, headphones (with different sized earbuds), Wall plug with detachable USB cable and a quick start guide/warranty information.

Within Korea, unfortunately for the rest of the world, you are treated to an extra spare battery, cases and the official Samsung charging dock accessory. I’m not sure how aware the rest of the world is that the Korean market gets so much extra for a comparable price – but personally I think we should make a sing and dance about it so that the rest of us get more free goodies!

Design – On the Outside


For all intents and purposes, the Galaxy S4’s design is a smaller Galaxy Note 2 with a little more refinement around the outside. It certainly is a natural evolution in the design line following on from the Galaxy Nexus –> Galaxy S3 –> Galaxy Note 2 and I have to say I much prefer it to the Galaxy S3 which was a bit too bottom-bulged and bug-eyed for my liking. Having said that, on offering the Galaxy S4 up for inspection by friends and family, even some of the more technologically-and-mobile-interested among them found it difficult to tell that this was a new phone, or any different from its previous iterations. I suppose if you are spending a lot of money on something new and fancy like a Galaxy S4, you might want it to stand out a be a bit different and. Although it’s nice looking, it’s not very different looking which might be a problem for those who take pleasure in superficiality.

If you ignore the confusing and conflicting messages offered by Samsung’s design team, it’s hard to fault the device on looks and functionality and although we’re sure the sales figures will agree with us, the design seems to be a popular ranting point for more vocal internetarians.

Currently the Galaxy S4 comes in black and white. Or, if you are so inclined: “Black Mist” and “White Frost”. Hmmmmm….. anyway… while both devices have a carbon-fibresque dotted finish to them it’s not very apparent on the white model: it’s much more visible on the black. More colours such as arctic blue will be announced and available in the months to come.

Of course, in true Samsung fashion, the entire device is ‘polycarbonate plastic. This seems to anger the more outspoken people on the internet who go nuts for words like “brushed aluminium” and “unibody”.

OK – sure – considering how much you are paying for a device it would be nice to see something that looks like it costs a bit more, but it would also be nice to get better and faster GPS locks which is what you get with a plastic outer body. Also, and let’s be honest here, the first thing you do with an expensive device like a Galaxy S4 is to buy a (probably cheap and plastic) case to ‘protect’ it… so it’s not like you’re going to be looking at it that brushed aluminium all day anyway!

Samsung have gone some way to appease the brushed-aluminium fanboys, by including a what-looks-like-brushed-aluminium-but-is-actually-plastic “band” round the outside of the device. This does actually look really nice, and more importantly gives a much better grip in the hand compared to its more rounded and more slippery predecessors.


The Galaxy S4 is a behemoth of a device when it comes to hardware. Packing either a 1.9Ghz Quad Core or 1.6Ghz Octa-Core processor (depending on which version you get) and 2GB of RAM it currently outbenchmarks almost all of the competition in terms of pure grunt. The 2GB of RAM ensures that you will be able to multi-task and switch between apps with ease.

I could go on for some time about all the different benchmark scores, but ultimately that isn’t really significant. Let’s ask a few questions:

  • Can the Galaxy S4 play games really well without lag? Yes.
  • Can the Galaxy S4 do lots of multitasking without the device slowing down? Yes.
  • Is there really anything that the Galaxy S4 can run that the Galaxy S3, Note 2 or even the S2 cannot? No… but it can do them faster!
  • Will everyone buy the Galaxy S4 because we like newer and more shiny things? Yes!!!

For the majority of users, this added processing power is actually somewhat redundant. Of course, there are the power users among us who like to ogle over tech-specs or whatever but all you really need to know is that with the current state of apps offered on the Android platform, the Galaxy S4 offers a very future-proof hardware solution that will undoubtedly be able to run even more hardware-demanding applications released in the years to come.

Interface and Operating System

The Galaxy S4 runs on Android version 4.2.2 with Samsung’s own “TouchWiz Nature UX” overlayed on top. Google’s Android is the most widely used operating system and highly revered for its high levels of customisation and personalisation. With access to hundreds of thousands of applications, games, books, magazines and movies through Google’s own “Google Play”, with many other third-party vendors like Samsung’s own services: if you want an App to do something then it almost certainly already exists. If you want a book, movie, TV show or anything else, then you can get that to. If you can’t get it, or the App you want doesn’t seem to exist… then you might be in a good position to make a bit of money!

Samsung’s TouchWiz interface brings a lot of added benefits to users, and, whether you like it from past experiences or not, it’s hard to deny that Samsung have contributed a lot of very tempting features and Samsung’s own software which, for me at least, have been keeping me away from the custom ROM scene for quite a while.

Samsung have included some of their own software which, for the most part, is very well executed:

  • S-Health assists you in calorie counting, exercise and comfort levels,
  • S-Translate offers some cool babelfish-like translation services
  • Watch On uses the Infrared Blaster on the Galaxy S4 to control external devices
  • Story Album allows your to organise media in a scrap-book style
  • Samsung Link (formerly “All Share Play”) and Group Play lets you share media over your home network
  • Alternate service and content vending system through Samsung’s media hubs and “Samsung Apps“.

The Galaxy S4 is also packed full of very cool unique-to-Samsung features such as “Multi Window” (below) which allows split-screen multi-tasking and a whole host of added “smart” functions.

Smart Functions

Samsung have always been fans of gestural control of in their smartphones – which has now evolved into something much more biometric such as eye and head-orientation tracking. The Galaxy S4 now incorporates “Air View” which we first saw integrated with the Galaxy Note 2′s S-Pen which allows users to interact with the Galaxy S4 without even touching it!

Between you and me, Samsung’s “Smart” or “S” features are probably the first things I switch off in order to preserve battery life, but there is no denying that these features are about as cool and impressive as they come.

Clever Eye Tracking Features

The Galaxy S4 uses its front facing camera to track your eyes. This might sound a little bit creepy… that your phone is “watching you”, but you can’t deny that some of these features might be pretty useful. Smart Stay makes sure that the screen stays on as long as you keep looking at it, Smart Rotation adjusts the screen’s orientation depending on which way you are (pretty useful if you are reading in bed, for example), Smart Pause will automatically pause a video when you look away from the screen! Smart Scroll automatically scrolls content (such as web or emails) according to the angle your eyes are to the device.


AirView allows added functionality and interaction to the device without even touching it. This technology was first introduced with the Galaxy Note 2, but was dependent on the device’s SPen. No detecting the electromagnetic field in your finger… As far as we are concerned, this might as well be magic! As well as being magic, it’s also very useful, allowing you to hover over items to get more information and you get some cool effects like this lens flare lock-screen.

All of these features are extremely impressive, but I’m not convinced how useful they actually are in a real life situation. They may seem very enticing when coming from the mouth of a salesperson and, OK – they’re fun to show off to friends … but as far as I’m concerned, these are features which add more value to the salesperson than they do to us as a consumer: what’s wrong with holding your thumb on the device to stop it locking, or just tapping on the screen to pause a video?! Between you and me – these gestural controls and smart features are amongst the first things I turn off to save battery life.


Take a deep breath. The Galaxy S4 has a 441ppi 1080p Full HD super AMOLED RGBG Diamond PenTile display. If you want to know exactly what all that means, then check out our article about the screen technology in the Galaxy S4.



Source: DisplayMate

As the first device with a 1080p AMOLED display, the Galaxy S4’s screen is quite spectacular to look at. Compared to AMOLED displays on previous flagship Galaxy devices it’s maybe a little bit less bright over all but good enough in sunlight. The quality of the picture is great – up there with the best we’ve seen. However, for my eyes – someone with normal vision – I can only really see a difference between the Galaxy S4 screen and the Note II/S3 screens if I really look for it: Although a full HD screen is impressive technology, I am still not convinced that smartphones need to have such extreme pixel density and resolution. I suppose the market[ing] demands it as ‘higher numbers are always better’ but I have to question where all this stops!

Ultimately, this screen is a great upgrade from its predecessors and a huge step forward for AMOLED and PenTile screen technology.

Screen Protection

The Galaxy S4 screen is protected by Gorilla Glass 3, a type of fortified glass manufactured by Corning which offers protection against scratches, scuffs and cracks. Without a screen protector, we’ve had no discernable scratches on the device yet, but it is by no means impervious to a battering or an unfortunate grain of sand in your pocket.


The Galaxy S4 has a 13MP camera with LED Flash. It’s sharp, accurate and up there with the best smartphones around, if not a bit better. The only exception is in low light conditions where, although it performs fairly well, it isn’t as good as other manufacturers. The Camera interface has borrowed quite a lot from the Galaxy Camera but the features have been ramped up to include things like animated photographs, recording sound along with the pictures, photobomb removal, filters, fish-eye, and dual camera mode: allowing you to capture images simultaneously from both cameras. Basically, like the rest of the Galaxy S4, it has more features than you can shake a stick at.



One thing we particularly like is that you can choose what the volume rocker does in the Camera App. By default it’s set to act as a zoom, but you can change the role to take a photograph or start recording video. It’s nice to see Samsung offering this level greater level of customisation on their devices – hopefully something to look forward to more of in the future.




The Galaxy S4 is powered by a 2600mAh battery. With the full HD screen and upgraded hardware, we assumed it to would extremely power hungry but battery performance has been on par with other smartphones lasting well over a day (though considerably less with heavy usage). It’s not as good as the Galaxy Note 2, but it’s certainly worthy of its flagship position. Of course, battery life deteriorates over time, but as the battery is removable, replacement/spare batteries can be fitted for a relatively little cost, increasing the lifetime of the device significantly.


The Galaxy S4 is a worthy upgrade to the Galaxy SIII, though much of this is because of the software. Given that there isn’t anything particularly wrong or outdated with device hardware from this time last year and many of the new software updates will trickle down onto previous Galaxy S devices anyway it’s really down to the better screen, design and better camera that set it aside from previous models.

Overall, the Galaxy S4 is a beautiful, feature rich, behemoth of power and functionality. It can do more things than we could ever get round to knowing how to do, and do them in a quicker and more user-friendly way than any previous Samsung device.


Design – 7.5/10

Performance – 9.9/10

Interface – 8/10

Smart functions – 9/10

Multimedia - 9.9/10

Screen – 9.9/10

Camera – 9/10

Battery – 8/10

Total – 8.9/10

Reviews 49
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Leave a Reply

9 months 13 days ago

a shit mobile phone many mnay problems it lags it becomes hot and battery drains …anyone can help me here plzzz

2 years 10 months ago

yazıklar olsun samsung a ı9505 xxubmf7 ye daha güncelleme çıkmadı kies 4.3 4.4.2 bile yok

3 years 7 months ago

Galaxy S4 as we may have taken the FM radio? When you buy the tapeworm, after an update, it was not more!

3 years 7 months ago

My phone Charging cannect and disconnected problem.

3 years 10 months ago

why disconnect wifi in samsung galaxy s4?
please help me :(

3 years 10 months ago

Hi All, I need help please. I’ve noticed that when playing a hardcore game or browsing for a while with the brightness set to full, the phone gets too hot and the brightness get reduced automatically and come back again to full in a minute or less. it keeps doing this when it’s too hot. i read some articles about this for the Xperia Z, it says that it’s to let you know that the phone is overheating and to preserve the screen and the battery. Is this true and normal for the S4 I9500?
Really waiting for your comments. Thanks.

3 years 8 months ago

I think you need a Sony PSP or Vita – they are designed for gaming, unlike the Samsung MOBILE PHONE.. :)
even the Xperia Z does it, that should tell you something??

Old computers had the same problem with heating, its difficult to fit a big heat-sink on something very small!!!

I thought I heard Samsung were going to try to do their own PSP-type thing, but cannot find it…

you could always get an ice-pack, and rest your phone on it like they did with old ‘mini-pc’ gamers… :P

3 years 10 months ago

A note on the GT-I9500, to put in Samsung’s words “it’s not one of ours”. The GT-I9500 was made in China for telecoms in South Africa, Kuwait…. which is why this unit has problems working with US carriers. Samsung said, if you are uncertain of the model, go to our website and use the search box top right of the page, type in the model number, and if it returns nothing then it is not a phone manufactured by us.

I know this because I bought one and immediately returned it. All S4′s should, on the back panel, say Galasy S4, all of the GT-I9500 I’ve seen do not have this text on the back. Explanation I got was because it was an international version, to which Samsung said no, not correct.

The unit I bought and returned, there was no US Samsung support. I was told I would need to contact International support, which was apparently in China because that was where it was made, and no one, even the company I bought it from, could find the phone number, not to mention, I don’t speak Chinese.

3 years 10 months ago

I just bought my s4 a week ago and now I m facing this problem of overheating…….. its so bad while talking on the phone thatvi feel I may even burn my ear…….I m realy disappointed with this……this shouldn’t b happening with a phone so expensive…….plz can anyone help me with this problem???

Joseph Sika
3 years 10 months ago

Largely the review was OK but I have a couple of issues with some comments by the author. First you appear to say that high deff screens are not necessary on smartphones! Personally, I think Samsung did a good job bumping up the resolution of the screen. I don’t see any problem with screen resolution going even beyond the current HD specs so long as the technology is there and it’s affordable to consumers!
Secondly, you are implying that the air view features are not useful!! I totally disagree. For someone sitting in an office writing articles on a PC all day, maybe air view is gimmicky but for some of us who have to work both in an office and out in workshops, that is a godsend feature. I have been using my S3 to take photos of broken parts inside containerized gen sets in a power plant which at times are very oily. You can imagine how these features will be helpful to me. I’m ready to pay extra to have these features. Cant wait to get myself the S4!..

3 years 11 months ago

Even before i use galaxy s2 and still its goes on. Galaxy S4 is Amazing and no words to share. but you should re-install from samsung service center the software and base band of the device if you face any heating and battery backup problem.

I have nothing to say about the features of the phone but the main part of the phone is battery and it comes for me least time of 30 hours using including whole day voice calls, emails, browsing, sms, videos and etc

5* Rating..!!

Sundar Polos

3 years 11 months ago

I9500 must come to all countries.Is faster than I9505 and it’s not fair that some countries can’t buy it instant

3 years 11 months ago

Thanks for the good review.
People who own an Galaxy S3 (LTE), dont need to upgrade in my opinion. Only reason to upgrade vom I9300/305 is the better camera of the S4. Technically there is no evolution except the Full HD Display. I have both, I9300 and I9305 and im totally statisfied with the handhelds. No problems, laggs or anything. 720×1280 is absolutely enough, and videos looks amazing on the S3. I`m from Germany, and if the Exynos-Model is available here I will sell my I9300, give my sister the I9305 and buy the S4. Until that the S4 costs almost ~550€ (same as the S3 1 year ago, first 699€ and after 2 or 3 months 550€ and I think GS4 is worth only with the Exynos 5. Because that is a technical environment). I like that Samsung didnt shi*** the people with words like hyperpixel and megasound. 4 u****-pixel camera but only 4 megapixel. People who dont research believe that this is a new technic and buy that phone only because of the “cool sounding words”. Thumbs Up to all companies who dont attract people with words.

P.S watch the new Amazon Kindle Fire HD commercial from Germany. Muhaha :D

Is it true, that the Snapdragon S600 is only a overclocked Snapdragon S4 Pro? Same technic? If its true than we all should buy the Nexus 4 :) Powerfull device for 350€

3 years 11 months ago

Because the Snapdragon 600 has also the Adreno 320 GPU as the Snapdragon S4… NO TECHNICAL ENVIRONMENT –> Wait for GS5

3 years 11 months ago

Samsung did a very poor job in terms of storage on the S4 with the 16GB mode.

3 years 11 months ago

i played with this phone for about 5 hours other day i can say it is nice looking and spec are amazing but Touch Wizz is terrible its getting worse every time they update it its full of crap nobody wants and confusing!?
i have a galaxy s 2 on nexus rom and its so simple to use so is android 4.1 stock but i like my menu key in the middle not far right htc even get this right ! love Samsung as i always get a better signal with a Samsung phone and cant live with out android but for a experienced phone user it needs a change as well as maybe a more solid feel to to phone and unbreakable materials for the extra price should be

tips for Samsung GALAXY S 5 android 5 KLP

make the app icon menu more flexible like the rest not on the right….

blur out the back ground when in app draw as it is distracting and looks like your on he home screens a little !

no fat green icons

new style to re invent touch wizz its like windows 6 or windows Me

No confusing menus

more expensive feel to handset

3 years 11 months ago

it still is the best phone of 2013 so far :)

3 years 11 months ago

I love it, except im not rich

3 years 11 months ago

Galaxy s4 has a overheating problem on the screen and back camera. This problem happens when you browse the internet,taking a picture,and playing it that my s4 have a technical problem. Help me please.

3 years 11 months ago

Yes, the problem having problem with overheating excessively. Not just normal heat but its bad. Take your phone to the service center and get a new main board replaced. Make sure they replace it. Its a design problem. They didn’t apply any sort of thermal coverage for the processor to absorb the heat and that’s why its overheating. Its becoming a big issue with S4 now.

3 years 11 months ago

Attributing battery life to battery deterioration is quite simplistic, since it depends considerable on “time since last factory reset”, cache status, Dalvik cache status, etc.

(“Of course, battery life deteriorates over time, but as the battery is removable, replacement/spare batteries can be fitted for a relatively little cost, increasing the lifetime of the device significantly.”)

3 years 11 months ago

since I got myself a google nexus 4(LG). I sold my S3 (32Gb) which was the worst smartphone I’ve owned.
all this extra optioning s3/S4 now seems targeted for rednex. totally useless.
s3 was VERY VERY LAGGY. it was a DISSASTER. I think the S4 will be the same as I tried it for a couple of hours.
don’t bother to reply to this comment as I won’t be back on this page.

3 years 11 months ago

I see alot haters here ! = means jallous ppl !

Phone is nice but not spectacular fast.
They should spend more time on gpu accelration and smoothness

3 years 11 months ago

Where did you guys found the FM Radio on the S 3? I would very much like to know that magic since there’s no build-in radio on the S 3! Neither does the new S 4 come with a build-in FM radio, it was only the S 2 that have a FM radio build in. But anyway, if you want to listen to an radio, then there’s tons of apps wich can provide you with an internet radio wich in most cases, is just as good as “The Real Thing”. I’ve had my brand new S3 now for ab 1 1/2 month n will already upgrade to the new S 4 in the next few days, so this review was great to read. I’m so much looking forward to this new one though there’s only one thing I don’t like: the polished look on the outside, but then again, I will have to wrap a rybber protection on it so – it doesn’t really matter that much.

3 years 11 months ago

Simply start the FM-Radio app.
If you use a custom rom (AOKP,Cyanogen), mybe it has gone.
3 years 11 months ago

will take bit of time for an update to be launched for S3. Worst part is my S3 and S4 cannot be a part of wifi direct and few other features which are not common across Galaxy ecosystem..

3 years 11 months ago

Thanks for the review.
Personally – it is as you put it – a worthy upgrade but “most of it is because it is SOFTWARE based improvements”

I’m waiting for a port for the S3 – and I’ll be set for another year :)

3 years 11 months ago

waow 10 million units sold is about to boxing, comparison, crash, and fall compilation but for use i dont think so^^

3 years 11 months ago

Currently the Galaxy S4 comes in black and white. Or, if you are so inclined: “Black Frost” and “White Frost”.

Its Black Mist not Black Frost :D

3 years 11 months ago

Plus Blue coming soon as well as metallic Orange version. I think these are for the Far East only though. The Blue model will have 32Gb.

3 years 11 months ago

I thought the Blue and Red/Orange were on the S4 Active?

3 years 11 months ago

S3 has FM but S4 doesn’t have FM because of that I don’t want to downgrade with this.

3 years 11 months ago

Seriously? Go home, you’re drunk bro.

I have an S3 and I am proud to say this that I have never use FM Radio on it. Yes it is cool to have but it is not something I can’t live without. I don’t even listen to Radio in my car that often either. Let’s face it, if it is a major feature that you must have then just buy a portable radio. It’s bloody cheap or otherwise go home, you’re drunk bro.

3 years 11 months ago

I have an S2 and I am proud to say this that I have never use sdcard and GPS on it. Yes it is cool to have but it is not something I can’t live without. Let’s face it, if it is a major feature that you must have then just buy a portable sd card reader and GPS tracker. It’s bloody cheap or otherwise go home, you’re drunk bro.

3 years 11 months ago

Just because YOU don’t use it doesn’t mean no one else will. The Galaxy S4 is already a big ass phone. You expect people to carry a fm tuner, a portable GPS unit, a SD card reader and carry the phone too?

That’s just stupid.

Some people don’t surf the web on their smart phone. Should they remove that function too? And people who do surf web should just buy a tablet or a laptop.

See how stupid that sounds.

3 years 9 months ago

why not??? that is what Iphone users do… NO radio, NO sdcard, you cannot even transfer files by bluetooth!!!

3 years 11 months ago

I think elorio was making fun of maxximuscool’s comment bro :-)

3 years 11 months ago

FM ? I dont give a shit !! You can buy little fm tuner for 3€ nowadays