LG G4 specs review: altered beast


When it launched in May last year, the LG G3 was certainly an impressive fiend. It was the first smartphone to ship with a quad-HD resolution display, in addition to a terrific spec sheet, spearheaded by the aforementuoned screen and the innovative laser auto-focus system. Thanks to moving a good six months ahead of the industry, LG made the LG G3 stay relevant to this day, even as lower-priced and better performing devices eventually matched its superiority. Among these is the new LG G4, poised to continue carrying the torch after its predecessor ascends to the Valhalla of smartphones. The LG G4 contains all the necessary improvements to keep LG in the crazy smartphone-making game for another year. It's time we take a look at the hardware that make this beast tick in the rhythm of a thousand clock cycles!


Some you may have feared (or gleefully anticipated) that LG will make a tradition out of releasing smartphones with higher-than-thou resolution screens each year. For better or worse, the LG G4 doesn't come with a 3K or 4K panel, although this is only the first half of 2015, and who knows what LG or its competitors may be priming for the next couple of quarters! Anyway, the LG G4 packs a 5.5-inch IPS LCD display with a resolution that we're now accustomed to - 1440 x 2560px, with a 538 pixels per inch pixel density. So far, this sounds just like the LG G3 did in 2014, but there's more to the LG G4's screen than meets the eye. It has been tricked out with Quantum technology that LG hypes as a provider of richer colors and stronger brightness output. Apart from purer colors, the Quantum display has a 30 to 40% luminance advantage over OLED screens, and has the potential to be more than twice as power efficient.

Processor and Memory

The LG G4's processing department sees a substantial improvement over the LG G3, as the new flagship is powered by a 64-bit hexa-core Snapdragon 808 CPU and a more advanced Adreno 418 graphics unit. The LG G3 makes do with a quad-core Snapdragon 801 chipset which, despite LG's respectable optimization efforts, did a mediocre job at servicing the QHD display. The Snapdragon 808 strikes us as an unexpected SoC choice, as it has less power on tap than Qualcomm's flagship Snapdragon 810 chipset. However, it doesn't look like we'll be seeing the 810 perform to its fullest potential any time soon, due to the aggressive speed throttling needed to keep its thermals in check. This means the LG G4 has a realistic chance at keeping up with its contemporaries in the performance aspect, and it will certainly work faster than the LG G3 does.

During LG's announcement event and subsequent media coverage, we got to learn that the company had actively participated in the Snapdragon 808's development, almost giving out the impression that Qualcomm built the LG G4 a custom SoC. While that's not entirely the case, there haven't been any other Snapdragon 808-powered smartphones on the horizon yet, which could make the hexa-core chip a sort of a timed exclusive for LG's flagship. Then again, LG's decision to opt for this silicon was, in part, motivated by Qualcomm's roadmap. LG's rivals wanted the Snapdragon 810, as its mass production phase would have coincided with their early 2015 product launches. LG, however, could score the 808 right in time for the LG G4's announcement, and it seems the company was given a chance for direct input over its development as well. Hence, LG and Qualcomm went to work and here's what they ended up with.
The Snapdragon 810 and 808 are cut from the same... wafer, so to speak. The 808 too is a 20nm chipset, made with stock ARM Cortex-A53 & A-57 64-bit cores. However, whereas the Snapdragon 810 has four powerful Cortex-A57 cores and four economical Cortex-A53 working in tandem depending on the load, the SD 808 has two of the A57 cores, making for a hexa-core configuration. The situation is similar with the graphics processing units that come on both. The SD 810 has an Adreno 430 GPU, whereas the 808 has the Adreno 418 GPU. It's difficult to be certain about the differences between the two, as Qualcomm doesn't disclose its GPU details. Both, however, are based on the chipmaker's latest graphics architecture, and performance estimates portray the Adreno 418 as 20% faster than the Snapdragon 801's Adreno 330 GPU, and the Adreno 430 as 30% faster than the Snapdragon 805's Adreno 420 GPU. A 20% increase is a fair bit of improvement over the LG G3's GPU, which struggled to keep up with the Quad-HD screen under heavier load.

Mem-wise, the LG G4 comes equipped with 3GB of LPDDR3 RAM, and has a minimum of 32GB of internal storage, which can be supplemented with a microSD card. This is another flagship that deals away with the measly 16GB of storage. Oh, to think of the times we were content with 8GB storage!

Although the Snapdragon 808 may seem under-powered compared to the Snapdragon 810 and Exynos 7420 chipsets found in competing smartphones, we are keen to believe LG made a smart choice. Opting for a more modest chip that was also developed under its supervision could prevent the overheating and throttling problems of the LG G4's predecessor, without significant performance decreases. Of course, the reality could turn out wildly different, even if it's hard to see a disappointment in the making. But it's also difficult to see anyone dethroning Samsung's Exynos 7420 chipset and the company's extremely fast UFS 2.0 flash storage in the months ahead.


Photography has to be the area that saw the most crucial improvements over the LG G3, hence the LG G4 can potentially become the next best camera-phone after the Samsung Galaxy S6. It could even surpass it - time and testing will tell. In place of the LG G3's 13MP cam, the LG G4 sports a brand new 16-megapixel 1/2.6” sensor of LG's own making. The camera boasts a sizable bag of tricks- wide f/1.8 six-element aperture lens, laser auto-focus assist, optical image stabilization, and a dual-LED flash.

It is noteworthy that the LG G4 has three-axis optical image stabilization, which is a more efficient solution than 2-axis OIS systems. Nokia used it in the Lumia 920's PureView camera back in 2012. 2-axis systems stabilize the image on the x and y axis (roll and pitch), while 3-axis systems add a z-axis (yaw), completing the three-dimensional movement.

Thanks to its wider f/1.8 aperture size, the LG G4's 16 MP rear camera is able to soak in as much as 80% more light than the LG G3's, which already makes it better equipped for troublesome low-light situations.
Another exciting new addition is the color spectrum sensor. Positioned right below the LED flash, this tiny sensor is there to tell what kind of lighting conditions you are taking pictures in (whether it is natural or artificial light), and adjust the white balance of your images accordingly. The CSS is capable of precisely reading the RGB values of ambient light in a scene, as well as the infrared light reflected from objects. This information is used to automatically adjust the camera's white balance and flash color with the ultimate goal of most realistic colors. In layman's terms, reds won't appear orange, and whites won't show up with yellow and blue tint - the sins of yesterday's smartphone photography.

One of the LG G4's most important new additions is the improved camera app which welcomes back the Manual mode. A questionable omission from the LG G3, Manual mode gives experienced photographers a shot at landing that perfect scene. The LG G4 also offers support for RAW file format and it has an option to adjust the camera shutter speed.


From a specs point of view, the LG G4’s arsenal is impressive, yet predictable. QHD and laser auto-focus' novelty has worn off in the span of a year, which doesn't devalue their technological significance, but makes them less exciting for customers. Still, the considerable display, performance and camera gains make the LG G4 a good choice over the LG G3, and an interesting smartphone overall. Needless to say, we're quite curious how the LG G4 will perform in benchmarks and tests, just because it's so different compared to everything else out there. Hopefully, LG's efforts to make the LG G4 stand out will pay off by making life good, both for you and the company.

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1. Kakarotto

Posts: 255; Member since: Dec 07, 2010

Phonearena, now compare this "flagship" to LG G Flex 2 ;P

36. QWERTYslider unregistered

PLEASE CONFIRM THE EXTERIOR DIMENSIONS AND SOURCE. Cnet is reporting the G4 has the same dimensions as the G3.

39. vincelongman

Posts: 5728; Member since: Feb 10, 2013

Cnet are wrong G4: 148.9 x 76.1 x 6.3 - 9.8 mm G3: 146.3 x 74.6 x 8.9 mmhttp://www.anandtech.com/show/9199/lg-announces-the-g4-5-5-inch-qhd-with-snapdragon-808http://www.androidpolice.com/2015/04/28/lg-makes-the-g4-official-snapdragon-808-3gb-ram-slim-arc-design-stitched-leather-back-16mp-f1-8-camera-removable-battery/ Check Android Police for LG's Official Press Release Unless LG somehow listed wrong specs in their Press Release But that's highly unlikely

45. QWERTYslider unregistered

Thanks for finding this, Vince. LG is clueless, reps had no idea, and didn't even have the specs on the G4 site. http://www.lgnewsroom.com/newsroom/contents/65287 Furthermore, Cnet corrects to the LG specs in their latest article.

50. engineer-1701d unregistered

how can you call this a superphone its cpu is that on last year basically and the q dot screen is a cheaper version of qhd look at the tech event showing the qdot vs suhd and you will see its not better its basic like when sharp added in a 4th color yellow to its tvs did not help it at all.

2. Nexus_droid

Posts: 12; Member since: Jul 02, 2014

Not bad, all around, but for some reason, I expected something...better, maybe a more compact body, with premium materials, ie, metal with leather/glass. A cleaner UI maybe, it looks cluttered. and definitely more varieties of internal storage... :( Maybe next year... Camera is great, and well, this processor can't top the S6's Exynos..so nothing special there

9. Ashoaib

Posts: 3298; Member since: Nov 15, 2013

the back of G4 looks like the back of a Frog... last year I have seen band aid from Samsung and this year Frog aid or Toad aid from LG

12. TBomb

Posts: 1579; Member since: Dec 28, 2012

Do you want fraud insurance? Frog insurance? Yes, fraud insurance. Yeah, I want frog insurance. Unrelated.. but i had to. sorry ahead of time.

30. fzacek

Posts: 2486; Member since: Jan 26, 2014

Yeah, it's also thicker, taller, wider, and heavier than its predecessor, the G3. I don't really see how exactly it can even be considered an upgrade...

34. cheetah2k

Posts: 2271; Member since: Jan 16, 2011

200% underwhelming.. Basically LG have had to suck up a half way house handset purely because Qualcomm dropped the ball with the 810.. Such a shame really. LG were just on the verge of continuing with their very successful G series flagship line-up, and now this. TBH the G4 is nothing but a G3S. Definitely not worthy of the G4 branding.

42. samsboy unregistered

I am just confused. I may have to wait for 2016 to buy a flagship phone, or may be Samsung will convince me to upgrade my note 4 with the note 5. I am completely disappointed with 2015 flagships

3. Rick_Deckard

Posts: 27; Member since: Oct 31, 2014

I am still debating between the S6 and G4... It will come all about the price.... I am quite disappointed about the Qualcomm Snapdragon 808 (hexa-core: 2xCortex A57+ 4xCortex A53, 64-bit) and Adreno 418 GPU in the G4, because in graphic performance the G4 will not be better than the Snapdragon 805 with the Adreno 420... Although, I am quite happy about the camera... Nevertheless my biggest fear is the Hairline flaw.... I just hope that LG has fixed the flaw of the hairline crack in the LG G3... I am worried that the G4 is primarily built with plastic materials... Why am I saying this concern about the premium built? Simple, I had the G3, even though, with an armor case and tempered glass installed, in less than one month of use, my G3 got the infamous hairline crack next to the microphone... I didn't drop my G3 once... I was glad I was able to return it... A flaw caused by the cheap plastic materials... Now, I am all about the camera.... It seems to be that the G4 is using the same S6 camera sensor, IMX240... Which is great!!! I can only buy at full price... So I hope that the G4 will be cheaper than S6... And I will be getting the G4 for sure...

5. Busyboy

Posts: 733; Member since: Jan 07, 2015

Why are you constantly copy and pasting your comment on G4 articles? We read it the first time.

6. Nexus_droid

Posts: 12; Member since: Jul 02, 2014

Hmm... I'd suggest the S6, definitely premium built, and a better processor. However, although, many reviewers agreed the S6 camera is the best in any smartphone...ever (MKBHD) it looks like the G4 can give it a run for it's money, both sport OIS and 16mp snappers. The apertures are almost the same, however the S6's front camera has a better aperture, so selfies should be better despite the megapixel count. So, if I was choosing, it's the S6's sexier, slimmer body, beastly processor and amazing camera ;)

8. Rick_Deckard

Posts: 27; Member since: Oct 31, 2014

I am thinking that I will be getting the G4, because of the price point.... TMobile has announced that the G4 is going to cost $599... Either way, whose has the best camera... It seems to be that G4 has a great camera....

16. Nebice

Posts: 68; Member since: Jan 05, 2015

LeTV One Pro? How about it better specs than G4 for less money

19. RoboticEngi

Posts: 1251; Member since: Dec 03, 2014

How about not buying cheap Chinese?

26. maherk

Posts: 6966; Member since: Feb 10, 2012

So of you made up you choice, then why are you copy pasting your comment from G4 article to another about how you are "debating" whether you should get the S6 or the G4? P.s: people who usually copy pastes their comments are usually hunting for the green pluses, which means they are pure attention wh*r*s.

46. darkkjedii

Posts: 31328; Member since: Feb 05, 2011

"So of you made up you choice"???

4. fzacek

Posts: 2486; Member since: Jan 26, 2014

Lots of bezel on the front. Makes it look like one of LG's low-end devices IMO...

25. darkskoliro

Posts: 1092; Member since: May 07, 2012

the true worthy of the G series is now gone :\

7. Sauce5 unregistered

Hard to admire & observe photos 13-17 when you have those stupid ******** watermarks all over them.

10. aminiac

Posts: 6; Member since: Apr 20, 2015

"performance estimates portray the Adreno 418 as 20% faster than the Snapdragon 801's Adreno 330 GPU, and 30% faster than the Snapdragon 805's Adreno 420 GPU, respectively. A 20% increase is a fair bit of improvement over the LG G3's GPU" are you on drugs? i i thought sd 805 with 420 adreno was superior to 418...

29. fzacek

Posts: 2486; Member since: Jan 26, 2014

Just because it's a bigger number doesn't mean it's better...

32. chenski

Posts: 774; Member since: Mar 22, 2015

808 is better than 805

38. fzacek

Posts: 2486; Member since: Jan 26, 2014

I was talking about the part where he said that Adreno 420 is superior to 418...

41. Chidoro44

Posts: 52; Member since: Feb 03, 2015

The adreno 420 is much faster than the 330. The article's wording made it sound as if the 420 was even slower than the 418 than the 330 is. This is simply not the case. Whether the 420 is slower than the 418, I don't know, but it's most definitely not slower than the 330

40. aminiac

Posts: 6; Member since: Apr 20, 2015

they are saying that 330 on 801's are superiror than the 420 on sd805, is that true?

51. luis.d

Posts: 354; Member since: Dec 04, 2013

Poor wording on my part. I edited for clarity, and here's what I meant to say: Adreno 418 = 20% more powerful than Adreno 330 (SD 801) Adreno 430 = 30% more powerful than Adreno 420. (SD 805)

11. Anonn

Posts: 230; Member since: Jun 04, 2014

The LG G4 performance benchmark results are in and they are not stellar http://blog.gsmarena.com/lg-g4-performance-benchmark-results/

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