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LG G3 vs Samsung Galaxy S5: Full spec comparison

LG's outing of the G3 will go down as one of the least watertight smartphone launches in history. The rumour mill always goes into overdrive whenever a new flagship mobile is on the menu, but the sheer number of leaks on this occasion were on an entirely different level.

Regardless, LG has launched the latest device in its mobile range, amid plenty of fanfare, at an event in London. This follow-up to the G2 has some big shoes to fill. After all, the G3's highly impressive predecessor grabbed a tasty 4.5 stars (and an ITProPortal Best Buy award) in our review. In fact, the G2's only real shortcoming was that it didn't feature an expandable storage slot. Suffice to say, the G3 addresses this problem, meaning that it can be pimped out to the max.

Earlier this year, Samsung introduced the world to the Galaxy S5, and the reaction to it has been largely positive. Aesthetics aside, the S5 packs a hell of a punch, boasting some of the best specs out there. Let's see how the G3 stacks up against it.

When it comes to screen size and quality, LG offers up more than Samsung. The G3's 5.5in, 534PPI display beats the S5's 5.1in, 441PPI one all ends up. However, you could argue that any difference in clarity will be difficult to distinguish with the naked eye, and the S5's display is plenty large and sharp enough already.

The G3's bigger screen comes along with an enlarged body and additional weight. It is slightly bigger than the S5 in all dimensions, and weighs a cool 4g more. Whether or not you think that the large QHD display is worth these sacrifices completely depends on your own preferences.

There are no real surprises when we make our way under the G3's hood. Everything is as high-end as you'd expect it to be, including the 3,000mAh battery. However, with that incredibly demanding screen to keep powered, you'd hope that it will be strong enough. The S5 packs a very similar array of components, so it's difficult to pick a winner here. However, I must say that Samsung's battery leaves a little to be desired.

Read more: LG G3 launch as it happened

Camera-wise, the G3's specs are just beaten by those of the Galaxy S5. The 13-megapixel rear snapper, while not the most powerful we've ever seen, falls short of the S5's 16-megapixel offering, and both devices are armed with identical secondary camera equipment. Again, there are no big surprises in terms of connectivity and software, with each device boasting very similar features.

As you can see from the table below, LG's and Samsung's flagships are very difficult to separate. You might argue that the former's QHD display and 3,000mAh battery give it the edge over its rival, but things don't always work out that way. On paper, both handsets look terrific but we'll be sure to identify any glaring shortcomings in our full review, which will be up on the site shortly.

Read more LG G3 spec comparisons:

LG G3 vs Apple iPhone 5S: Spec comparison

LG G3 vs HTC One M8: Spec comparison

LG G3 vs Sony Xperia Z2: Spec comparison

LG G3 vs Google Nexus 5: Spec comparison


Samsung Galaxy S5


Screen size

5.5in 5.1in


2,560 x 1,440 pixels 1,920 x 1,080 pixels

Pixel density

534PPI 441PPI



Processor and battery


Snapdragon 801 Exynos 6 / Snapdragon 801


Krait 400 Krait 400


Quad-core Quad-core

Clock speed

2.46GHz 2.5GHz


3,000mAh 2,800mAh

Claimed 3G talk time

TBC Up to 21h

Storage and memory


2GB / 3GB 2GB

Internal storage

16GB / 32GB 32GB / 64GB


Yes Yes



13-megapixel 16-megapixel


2160@30fps / 1080@60fps 2160@30fps / 1080@60fps


2.1-megapixel 2.1-megapixel





802.11 a / b / g / n / ac 802.11 a / b / g / n / ac


Yes Yes


v4.0 v4.0

Integrated wireless charging

Yes Yes



146.3 x 74.6 x 8.9mm 142 x 72.5 x 8.1mm


149g 145g

Operating System

Android 4.4 KitKat Android 4.4 KitKat

Price (SIM-free)

TBC £549


TBC April 2014