Just a year ago, the LG G3 was a new smartphone that seemed mighty impressive with its hardware parameters and attractive design. And while the G3 is still a great phone, the new Samsung Galaxy S6 is in a league of its own, sporting a premium build and a unique combination of powerful internals that's far ahead of what LG could come up with in 2014. If you are interested in upgrading your LG G3 to the Galaxy S6, or have to choose between an expensive new GS6 and a discounted LG G3, look no further than this review. We'll compare the two devices in the important aspects of design, display, user experience, hardware, connectivity, camera, call quality, and battery life. Armed with this knowledge, you'll be able to make the right decision for you.


The Samsung Galaxy S6 is a no-holds-barred premium device that combines the traditional Galaxy smartphone look with a top-notch glass and aluminum build. The LG G3 has just a simple plastic build that's of admirable quality, but certainly doesn't look and feel as impressive. Samsung poured a lot of attention in the S6's design, and made a reasonably sturdy smartphone, too, thanks to those Gorilla Glass 4 layers covering its front and back. Save for its semi-realistic metallic sheen, the LG G3 doesn't have anything to show in the way of luxury or damage protection, but its strong card is ergonomics. The big phone is easy to hold, thanks to its carefully chiseled back and sides.

Talking about ergonomics and sizes, the Samsung Galaxy S6 measures 5.65 x 2.78 x 0.27 inches (143.4 x 70.5 x 6.8 mm) at a weight of 4.87 oz (138 g), while the LG G3 is a bulkier 5.76 x 2.94 x 0.35 inches (146.3 x 74.6 x 8.9 mm) and a heftier 5.26 oz (149 g). The Galaxy S6 is more compact because its display has a lesser diagonal - 5.1 inches versus the LG G3's 5.5 inches, and it is lighter, although made of stronger materials.

Among the S6 and G3's most notable differences are the power and volume key placements. The GS6's hardware buttons are conventionally placed on the sides, while the latter's occupy its back panel. While there's nothing overly curious about the GS6's button placement - you most likely know it from other smartphones, getting used to the one on the LG G3 takes a while. And although it's comfortable for the most part, it's not always practical. Other important differences are the lack of microSD slot and interchangeable battery on the Galaxy S6. But the latter has a fingerprint sensor, which is useful for a fair bit of functionality that we'll have a quick look at later.

To sum it up, the Samsung Galaxy S6 is more compact, lighter, and of generally better design and build quality than the LG G3 – which is still quite an attractive smartphone that also comes with a larger 5.5-inch display, a microSD slot, and a removable battery.

Samsung Galaxy S6

Samsung Galaxy S6


5.65 x 2.78 x 0.27 inches

143.4 x 70.5 x 6.8 mm


4.87 oz (138 g)




5.76 x 2.94 x 0.35 inches

146.3 x 74.6 x 8.9 mm


5.26 oz (149 g)

Samsung Galaxy S6

Samsung Galaxy S6


5.65 x 2.78 x 0.27 inches

143.4 x 70.5 x 6.8 mm


4.87 oz (138 g)




5.76 x 2.94 x 0.35 inches

146.3 x 74.6 x 8.9 mm


5.26 oz (149 g)

To see the phones in real size or compare them with other models, visit our Visual Phone Size Comparison page


If Quad-HD resolution and gazing at over three million pixels simultaneously tickle your fancy, you are correct for looking up the Samsung Galaxy S6 and LG G3, as they both have great, extra high-resolution panels. The Galaxy S6 has a 5.1-inch Super AMOLED 1440x2560 screen with an extremely high pixel density of 577, making individual pixels nearly impossible to discern. The LG G3 has a 5.5-inch IPS LCD display with the same resolution, but a lesser pixel density of 538ppi which is a tradeoff for the increased diagonal.

When measured in Basic screen mode, the Galaxy S6's display boasts a color temperature of 6584 Kelvin, which is very close to the reference temperature of 6500K, where colors look neither too warm, nor too cold. As you can see for yourself, each color gradient matches the reference points throughout the chart, and the colors are almost textbook-like! In comparison, the LG G3's color temperature of 7099 Kelvins is farther off the 6500K we use as reference. Comparatively, colors on the LG G3 are generally fine, but colder than the Galaxy S6's, and a bit over-saturated. LG didn't go overboard or anything, but it's obvious that perfect color accuracy wasn't the prime objective.

In terms of brightness, the Galaxy S6 is adorned with the brightest Super AMOLED display to date, capable of up to 563 nits of maximum brightness. This means you won't have any trouble using this screen under bright sunlight. On the other side of the scale, the GS6 accomplishes an excellent minimum brightness value of 2 nits, which makes for easy bedtime reading. The LG G3's display, on the other hand, has a lower maximum brightness level of 455 nits, which means you can use it under direct sunlight or bright lighting conditions, but it may take some effort. And its acceptable minimum brightness level of 9 nits means you can use it in dark rooms without retina-searing experiences. although the screen should have been a bit darker.

Next, we'll talk gamma values. At a value of 2.11, the Galaxy S6's gamma response is relatively close to the reference value of 2.2, which means its display has adequate brightness response across the spectrum. We can say the same for the LG G3's display, which reports a gamma value of 2.26.



1. Urosz

Posts: 52; Member since: Apr 01, 2014

i still find g3 designe better

2. cncrim

Posts: 1590; Member since: Aug 15, 2011

Yes, but I like the speaker at the front or bottom.

4. KParks23

Posts: 740; Member since: Oct 13, 2010

They are taking phone thinness way too far. i own a g3 and its already too thin in my opinion u cant even hold this thing firmly and the new phones are thinner id rather them be slightly thicker than the g3 and have bigger batterys!

7. QWERTYslider unregistered

The G3 is obviously the better choice due to the removable battery and SD. The price is just a bonus. The S6 is worthless when it shatters and the battery is dead or diminished. It's sad that sheep can't figure this out for themselves.

16. TerryTerius unregistered

The hilarious thing about your logic is that it ultimately boils down to, "if you don't think just like me you are a sheep." The irony goes right over your head doesn't it?

17. sgtdisturbed47

Posts: 970; Member since: Feb 02, 2012

Typical "my opinion means more than yours" statement we commonly see here. LG G3 battery is terrible, screen color accuracy is off, performance is unpredictable, and the camera is mediocre. These are measurable, verifiable shortcomings. The rest, like removable battery and SD card slot, are subjective features that not everyone finds useful.

21. QWERTYslider unregistered

Only a idiot doesn't "find useful" a removable battery and SD. The stupidity of the common man today makes me shake my head.

22. QWERTYslider unregistered

WRONG. It's UNIVERSAL logic. It's not MY logic. Let me break it down so a "terry" can understand: Fragile = BAD Dead Battery = BAD Being tied to a cord to charge like a dog = BAD Paying a premium for internal memory that you lose when you sell the phone = BAD Can you understand this UNIVERSAL logic? Just grunt once for a YES.

18. datguyglad

Posts: 98; Member since: Aug 29, 2014

I have owned a G3 for a year now and just upgraded to a S6. As a former G3 owner I can confidently say that the S6 is a much better phone overall. Battery life to display to camera and overall daily usage. From what I've experienced so far from my S6, it's a upgrade for sure. We'll see how it holds up in the next few months, but so far so good.

9. Geek.T

Posts: 18; Member since: Apr 04, 2015

G3 just looks like a handset from chinese manufacturer while S6 is little more mature for my liking but i prefer G4(if leaked pics are real) they are godamm sexy specially leather back and texture front

3. drunkenjay

Posts: 1703; Member since: Feb 11, 2013

both are good. lg g3 is the tight form factor whilst s6 has amoled and is tonns better than the lg g3 screen qhd screen

5. alouden unregistered

The G3 routinely gets dinged for its battery life. But I find its battery life to be better than the GS5, for example. Everything else in the comparison is probably spot on.

6. limporgyuk

Posts: 376; Member since: Nov 06, 2013

I really like my G3 and am very impressed with the photos it takes. Plus the UI is heaps better than cartoony touchwiz

8. guil.power

Posts: 45; Member since: Mar 26, 2015

g3 looks like a child toy compared to the beast in a beauty

12. LGisgood

Posts: 833; Member since: Jun 23, 2012

S6 has better build materials but g3 has better design.

10. nseed

Posts: 1; Member since: Apr 05, 2015

G3's performance scores are rather fake, as mine official lollipop scores 42000+, so the other scores might also be untrue. The performance isn't far behind or at least not worth the extra 350 euros for sure.

11. hondaslzman

Posts: 78; Member since: Dec 29, 2014

I rather have fast charging than replacable battery becuase every time you change battery,something messed up and THAT's an Android bug they still have not fixed for all these years

13. chenski

Posts: 785; Member since: Mar 22, 2015

I'll stick to my g3, no reason to upg

14. masso33

Posts: 8; Member since: Mar 17, 2014

I had the S3,& S4 which were great phones, then I sold them cheap to my family like I always do, then I got the nexus5 as I love android phones, then a few months ago I sold it cheap and got the lgg3 a few months ago, as I use my 2013 32gb LTE daily, as for my social media apps,and videos,

15. NihonDaisuki unregistered

This is pathetic that in Japan the logos of SAMSUNG are taken out of the Galaxy S6 and the S6 Edge because they literally hate Korean brands... Japanese people are smart so they know which one's crap and which one's great!

19. badoky

Posts: 1; Member since: Apr 15, 2015

samsung design seems like an iphone6.. Purchase Targeted Youtube Subscribers

20. javy108

Posts: 1004; Member since: Jul 27, 2014

I take G3 :)

23. Sovat_fc

Posts: 224; Member since: Aug 30, 2014

I'm happy with everything on G3 except its battery life which make me have to take its charger or power bank to workplace every day.

24. mirexcool

Posts: 65; Member since: Feb 28, 2015

bought this one on Aliekspress:Т very good phone

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