LG G Flex 2 vs LG G3: LG's best-ever phones compared [updated: video added]

androidpit lg g flex 2 vs lg g3
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Here is the ultimate LG showdown: the LG G Flex 2 - the first phone in the world to pack a Snapdragon 810 processor - versus last year's Quad-HD flagship, the LG G3. But which is better? Find out as we pit these two premium devices against each other in our epic LG G3 vs LG G Flex 2 comparison.

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androidpit lg g flex 2 vs lg g3
A curvaceous, flexible design or a QHD display? Which would you prefer? / © ANDROIDPIT

LG G Flex 2 vs LG G3: Design

The design of the new LG G Flex 2 is where most of its value lies. LG is still the only brand brave (read: stupid) enough to pursue a curved and flexible smartphone. In the second generation, the body has been made stronger, its size has been reduced, and it echoes the LG G3's shape and aesthetics. The "self-healing" rear bodywork isn't all we thought it might be (check out our LG G Flex 2 scratch test), but the display has been made ​​even more durable thanks to its coated Gorilla Glass, something LG refers to as "Dura-Guard" glass. Durability aside, the curved design is also ergonomic and functional. 

Link to Video

LG promised a better audio experience with the LG G Flex 2, and it has basically achieved this: the mic is pointed closer to your mouth than on the LG G3, meaning better quality calls and, thanks to its curved nature, the rear speaker is raised off the ground when placed on a flat surface, meaning clearer audio (in this particular scenario).

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The curved design makes the LG G Flex 2 more ergonomic. / © ANDROIDPIT

Despite not presenting a particularly unique shape or design, the LG G3 remains one of the most beautiful devices of 2014 thanks to its brushed metal housing, which makes it both stylish and functional. The G Flex 2's polished plastic also has its charm and feels slick in the hand. Which has the better feel will come down to personal preference.

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The G Flex 2 (right) is longer and wider than the LG G3, but it's also thinner, technically. / © ANDROIDPIT

LG G Flex 2 vs LG G3: Display

The design differences may be a matter of personal taste, but on paper the resolution of the displays is categorically different: the G Flex 2 is Full-HD and LG G3 is QHD. Many people believe that the advantages of a QHD display have been somewhat exaggerated, even still, the LG G3 has one of the most luscious displays on Android and is categorically sharper than the LG G Flex 2.

This is not to say that the G Flex 2 display isn't beautiful in its own right. It has been upgraded from its HD predecessor to full-HD, and it houses deep blacks and rich colors. The overall impact that the "curved" aspect has on the overall visibility, however, is negligible. 

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The QHD display of the LG G3 (left) is definitely one of the best on the market. / © ANDROIDPIT

LG G Flex 2 vs LG G3: Software

The LG G3 was recently updated to Android 5.0 Lollipop, but the G Flex 2 is a further step forward as it comes packing Android Lollipop 5.0.1. With regards to the interface, the LG G Flex 2 carries across all of the features from the LG G3, with some cool extras. 

The most notable of these is Glance View, which lets you swipe down on a darkened screen to bring up a preview of the time, date and any notifications you may have. It's a neat idea which we hope will be expanded upon in the future. There are also some new selfie-snapping gestures which work pretty well.

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The G Flex 2 (right) comes running the very latest version of Android: 5.0.1, but its software features as essentially the same as on the LG G3. / © ANDROIDPIT

LG G Flex 2 vs LG G3: Performance

The LG G Flex 2 is the first device to arrive with the now-famous Snapdragon 810 processor. We tested the 16 GB version of the LG G Flex 2, which comes with 2 GB of RAM and found that in general it was very fast and responsive but suffered from some occasional hiccups. Maybe this is a natural side-effect of being the first device to use such a high-performance processor, and maybe it will be addressed in a patch. As it stands currently, the LG G Flex 2 is a stronger performer than the LG G3, with better gaming performance, but the LG G3 beats it in terms of stability.

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The LG G Flex 2 has a Snapdragon 810 processor, but in our experience with it, it's not a clear winner over the LG G3's 801. / © ANDROIDPIT

LG G Flex 2 vs LG G3: Camera

The G Flex 2 and LG G3 have identical cameras, they only differ in terms of software. As discussed previously, the G Flex 2 comes with some unique camera features like selfie-gestures, but the basic performance is of same exceptional standard as the LG G3's.

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Both camera sensors use exactly the same technology, so both are equally excellent. / © ANDROIDPIT

LG G Flex 2 vs LG G3: Battery

LG G3 is already known for being one of the most efficient devices in the field, so how does the LG G Flex 2 hold up? The combination of a optimized processor and lower-resolution screen means the G Flex 2 just surpasses the LG G3 battery for normal day-to-day use. 

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Both batteries have a 3000 mAh capacity, but the big difference is that the LG G3's is removable. / © ANDROIDPIT

LG G Flex 2 vs LG G3: Technical specifications

  LG G Flex 2 LG G3
OS Android 5.0.1 Lollipop, Optimus UI Android 5.0 Lollipop, Optimus UI
Display 5.5-inch P-OLED, 1920 x 1080 pixels (401 ppi) 5.5-inch LCD, 2560 x 1440 pixels (534 ppi)
CPU Snapdragon 810 octa-core 2 GHz Qualcomm Snapdragon 801 quad-core 2.5 GHz
RAM 2 / 3GB 2 / 3GB
Internal memory 16 / 32GB 16 / 32GB
Camera 13 MP OIS + (back), 2.1 MP (front) 13 MP OIS + (back), 2.1 MP (front)
Battery 3000 mAh 3000 mAh
Connectivity HSPA, LTE, NFC, Bluetooth 4.1 HSPA, LTE, NFC, Bluetooth 4.0
Dimensions 149.1 x 75.3 x 7.1 mm 146.3 x 74.6 x 8.9 mm
Weight 152 g 149 g

LG G Flex 2 vs LG G3: Price and release date

The G Flex 2 price is still unknown, but we will update this page as soon as we learn more. The LG G3 has been available for some time already and you can now find it on for the extremely attractive price of 399 USD (or around 350 GBP in the UK) off-contract. Not bad for the second-best Android phone in the world!  

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The LG G3 is a great value phone, but we don't yet know how much the G Flex 2 (right) will cost. / © ANDROIDPIT

LG G Flex 2 vs LG G3: Conclusion

So which device is better? At this point it's hard to say without knowing the price of the new LG smartphone. The 64-bit Snapdragon 810 processor may not be the "key factor" for potential buyers that we once thought, but it will be better optimized for future Lollipop updates compared to the G3's 801. The software on both devices is identical, as is the camera, but the LG G3 still beats out the G Flex 2 in terms display resolution.

Ultimately, it will come down to two things, design and price. The curved nature may not improve the audio/visual experience to any significant degree, but it looks and feels great, and it's certifiably tougher. 

If the G Flex 2 matches the LG G3 on price, I think it's a clear winner. If it's twice the price, I'm not sure. But if we have to pick a winner with the information we have now, we'd crown the G Flex 2 as the better device. As senior editor Kris Carlon has said, "it's a G3 that bends, man!"

Which handset would you prefer? Let us know in the comments below!

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  • Randy O'Dell Mar 21, 2015 Link to comment

    I have the G3. Switched from the original flex. Sorry I did. I am not convinced that the flex 2 is all that. My g3 beats it hands down I my opinion. They took a revolutionary phone the flex, removed the best feature the size. Then took a g3 threw a faster processor in it with a few blings blings and called it a flex 2. I am not buying it. Why not call it what it is. A curved G3. That is it. Not a flex 2. Who ever came up with this idea is really wacked.
    Lets see what lg comes up with at IFA in sept.

  • Bojan M. Mar 1, 2015 Link to comment

    Let's put this simple: that "flexing" is the stupidest gimmick ever. You may say whatever you want and LG too, but if you think for a second you see there's no value in having your phone bent and looking stupid like this. As Graham D Chadwick pointed out above, until the phone has the full flexibility, like folding it in half, there is no use of these half assed solutions. And iPhones bend without even bragging about it. :D

  • Evan_was_here_01 Feb 28, 2015 Link to comment

    I would take the flex becuze the better display images if you look closely you can little bloches on color on the screen where the g flex doesn't

  • Arthur Schopenhauer Feb 19, 2015 Link to comment

    The review of the G Flex 2 on pocketnow mentioned enormous throttling issues which made the phone difficult to use. Apparently the new 810 processor heats up quickly. Given that the G3 is by far the better phone.

  • Nick Ivey Jan 8, 2015 Link to comment

    So the lgg4 should be amazing or am I hoping that 4k,3500mah,810 snap 64 bit ,4 gigs of ram is all a pipe dream nah 20.7 mp shooter,yea,hope I'm not just not hoping may comes then July my Verizon upgrade. Kicks in and the lggflex2 isn't my LG option.please,let's here in two month the lgg4 is here by June,my lgg3 still kiCks ass,and my lgg2,I just want that 3.0 64 bit snapdragon 4 gig monstor with a 14 hour moderate use battery so it's better than my 2.7 64 bit 4 gig Intel

  • Asad Yousufi Jan 8, 2015 Link to comment

    So far G3 is so good, I will search for phone by end of 2016 til then quite hopeful my G3 can perform good

  • Lee Jan 7, 2015 Link to comment

    The new Apple device's have this flexibility? Oh no sorry those just bend 😄 good article the phones not for me tho 👍

  • Niel Jan 6, 2015 Link to comment

    The selfie function where you make a fist is also available on the LG G3. I discovered it last week. I enjoyed reading the article :) I would choose my LG G3, because I love everything about it.

    • Scott Adam Gordon Jan 7, 2015 Link to comment

      Ahhh thanks for the info Neil! Kris made a big fuss about it in his hands-on so I thought it was a new feature! My mistake I'll update the article :D

      I'm not sure at this point which I prefer. I love the LG G3, I loved the G2 I think they are brilliant, but I really want to play with G Flex 2 for myself to see if the "flexibility" of it actually adds value. At the moment, for 399 USD, the LG G3 HAS to be one of the best value smartphones in the world, though.

  • Graham D Chadwick Jan 6, 2015 Link to comment

    The most important thing for me is size. Largest possible best quality screen in the smallest possible package. The flex is bigger than the g3 the screen is the same but of lower quality and until flexibility gets to the point you can fold it in two I don't see the advantage . I'll keep my g3.

    • Scott Adam Gordon Jan 7, 2015 Link to comment

      "The flex is bigger than the g3 the screen is the same but of lower quality and until flexibility gets to the point you can fold it in two I don't see the advantage" - Yeah I kind of agree, but LG is also mentioning improved audio and video experience, plus it's more durable, and the QHD display on the LG G3 might be overkill anyway

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