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LG G Flex hands-on review: LG's flexible show-off phone

LG G Flex hands-on review: LG's flexible show-off phone

The LG G Flex is the very first curved and flexible smartphone to hit the market. Beyond this technical feat, what other value does this 6-inch phablet actually have? Whether it really is an innovative gadget or a prototype without any added worth will be explained in today’s review.



  • Innovative
  • Good ideas
  • LG UI


  • Weak resolution
  • High price

LG G Flex design and build quality

Lets get right down to it: the G Flex has a curved design. Its display is bent and the entire device really is flexible. However don’t expect it to bend in every direction. The device can really only be bent enough to lay flat on a surface.

g flex test downwards
g flex test upwards
Here you will notice the curve they put on the LG G Flex. / © AndroidPIT

The advantage of this suppleness is primarily its resistance against breakage when being sat or stepped on. We didn’t notice any alterations or bubbles on the screen after having applied pressure.

g flex test led
The LED notification is part of  the back buttons, making it much more visible. / © AndroidPIT

You’ll find the volume and power buttons on the back side just like the LG G2. The LED for notifications is also integrated into these back components and they are big and very visible. The headphone jack and microUSB port are found at the base of the G Flex. On the left side is the microSIM slot and on the back, the only speaker. The chassis is not removable.

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The USB port and headphone jack. / © AndroidPIT
g flex test simcard
The SIM card slot. / © AndroidPIT

Another characteristic concept of the G Flex is its resin self-healing backing. We’ll get back to that in another, more intense test but it didn’t seem to hold up that well. In terms of the quality of craftsmanship, the smartphone has a nice finish, though its angles are a bit salient and the design overall isn’t very original. That being said, there isn’t really anything too problematic to point out.

g flex test back
The back of the LG G Flex is made of self-healing resine. / © AndroidPIT

LG G Flex display

While we can say a lot about the display, it doesn’t leave us totally convinced. First of all, LG boasts that their device makes for a much better user experience thanks to its curved form. I tested this however couldn’t really see a big difference when held next to a normal 6-inch screen. On that note, the bezel is relatively thin which makes watching videos on the G Flex quite comfortable.

g flex test down
The LG G Flex has a resolution of 1280 x 720 pixels. / © AndroidPIT

It gets worse after this point on: the screen performance is average. Some of the icons and keyboard present unclear contours, while the interface background isn’t perfectly displayed. These are just some small pet peeves, but for a smartphone of this caliber and hype, it’s a shame.

LG G Flex software

androidpit lg g flex 1
© AndroidPIT

There are some similar functions to the LG G2 and LG G Pad 8.3, like multitasking, Q Slide and Slide Aside. Knock On allows you to lock and unlock the screen by knocking on it like on a door. In the settings, the menu provides options to improve one-handed operation. This is very important because of the device’s size. You can also arrange the capacitive buttons on the home screen to your liking, or you can make them slide with one gesture to the left or right to access them better with your thumb.

androidpit lg g flex 2
With one swipe, you cna move the on-screen buttons from left to right to center. © AndroidPIT

Another cool thing to check out is guest mode where you can set up password blocks for changing the profile setup.

androidpit lg g flex 3
The gues mode. © AndroidPIT

Multitasking has been joined by a very useful function: the option to display two windows on one screen. This might not seem like anything out of the ordinary at first, but it’s now possible to keep a YouTube window open while you read an article for example. This way you don’t need to close out of the article, wait for YouTube to open and then go back.

androidpit lg g flex 5
Mulit-tasking mode / © AndroidPIT

Q Theatre is the name LG gave their lock screen. If you drag your fingers on the screen in an reverse pinch movement, three icons will be displayed. These do nothing more (or less) than opening either the gallery, videos or YouTube.

As you can see, the system is quite innovative and has integrated many of the useful LG G2 functions. In terms of the G Flex fluidity, the phablet is quite impressive. Navigation between menus, opening apps etc are simply the smoothest on the market right now.

LG G Flex performance

The Snapdragon 800 clocked at 2.26 GHz and 2 GB RAM do some good work. The G Flex runs very fluidly, internet browsing is exemplary while apps loaded really fast. The performance standard expected on such a prestigious device is high and the G Flex delivers.

LG G Flex camera

It’s another story when it comes down to the camera on the G Flex: satisfactory, but nothing exceptional. The picture quality is good in direct light and the LED flash is a useful addition. The color presentation is slightly pale.

g flex test photo int
Inside without flash. / © AndroidPIT
g flex test photo ext
Outside, daylight, no flash / © AndroidPIT

You will find classic camera modes like Panorama, Beauty Shot etc in addition to some new ones like Zoom. This allows you to film a video with a cut-out zoomed-in area. This is what it looks like:

g flex test photo zoom
The Zone mode could be useful for presentations. / © AndroidPIT

LG G Flex battery

During our test which lasted two days, I used the camera, played games, surfed the internet and played videos. The G Flex was connected the entire time to Wi-Fi, used mobile data and was syncing emails in the background. I used it as someone would on a normal day and have to say that the battery in this curved smartphone is excellent. With 3,500mAh of juice, it doesn’t just impress because it’s the very first flexible curved battery in a smartphone, but also because of its longevity.

LG G Flex technical specifications

Dimensions: 160.5 x 81.6 x 7.9 mm
Weight: 177 g
Battery size: 3500 mAh
Screen size: 6 in
Display technology: AMOLED
Screen: 1280 x 720 pixels (245 ppi)
Front camera: 2.1 megapixels
Rear camera: 13 megapixels
Flashlight: LED
Android version: 4.2.2 - Jelly Bean
User interface: Optimus UI
Internal storage: 32 GB
Removable storage: Not available
Chipset: Qualcomm Snapdragon 800
Number of cores: 4
Max. clock speed: 2.26 GHz
Connectivity: HSPA, LTE, NFC, Bluetooth 4.0

In the AnTuTu Benchmark test the G Flex outperformed the Galaxy Note 3, which says a lot.

g flex test benchmark
© AndroidPIT

Final verdict

The LG G Flex isn’t just another smartphone, not only because it’s the first device to have a curved and flexible display, but also because LG made some questionable choices. The performance is exceptional, as smooth as butter, but the G Flex has a rather subdued, even basic design. What turned some heads is its innovative self-healing chassis, which we need to test further. Also, many functions and features built into the Optimus interface were well thought-out. There is however one incoherent detail that remains, especially considering this smartphone costs 627 USD: the G Flex’s lackluster HD display resolution.

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