Microsoft Lumia 640 XL vs LG G Flex 2 Comparison

Microsoft Lumia 640 XL vs LG G Flex 2 Comparison

By Rich W Woods

NOTE: I wrote this a long time ago when I was reviewing the Microsoft Lumia 640 XL. I found it in my drafts and thought I’d publish it.

You may be noticing that I’m comparing the Microsoft Lumia 640 XL to flagship devices. Actually, I started by comparing it to the Nokia Lumia 635, while piling on the Nokia Lumia 1320 and Lumia 830. The purpose of this was to show how superior the Lumia 640 XL is to its predecessors. The camera is, by all rights, a flagship camera. The next comparison was with the iPhone 6 and now, the LG G Flex 2.

The LG G Flex 2 was a camera that I just fell in love with. In fact, the LG G Flex 2 was a phone that I fell in love with. The curved display combined with the laser focused camera made up a stunning device. It’s honestly one of the best devices I’ve ever used.

Microsoft Lumia 640 XL vs LG G Flex 2: Specs

Microsoft Lumia 640 XL LG G Flex 2
CPU 1.2 GHz Quad Core Snapdragon 400 Snapdragon 810, 1.5 GHz Quad Core, 2 GHz Quad Core
GPU Adreno 305 Adreno 430
Display 5.7″, 720p, 259 ppi, IPS LCD 5.5″, 1080p, 403 ppi, AMOLED
Body 157.9×81.5×9 mm, 171 g 149.1×75.3×7.1-9.4 mm, 152 g
Camera 13 MP, 4128×3096, 5 MP Front 13 MP, 4128×3096, 2.1 MP Front
Video 1080p – 30 fps, Front 1080p – 30 fps 4K – 30 fps, 1080p – 60 fps, Front 1080p – 30 fps
Aperture f/2 f/2.4
Storage 8 GB, Expandable to 128 GB 16/32 GB, Expandable to 128 GB
RAM 1 GB 2/3 GB
Battery 3000 mAh 3000 mAh
Price ??? $599

I’m not going to compare the specs here. For one thing, we’re comparing a flagship and a mid-range. For another thing, there is no sense in comparing specs of two phones of different operating systems.

Microsoft Lumia 640 XL vs LG G Flex 2: Rear Camera

Everything I’ve seen from both of these cameras, I absolutely love. Both use 13 MP sensors; however, the Lumia 640 XL has a larger aperture, coming in at f/2 while the LG G Flex 2 comes in at f/2.4. You normally don’t see an aperture as small as f/2.4 in a flagship; however, the low light performance was pretty good coming from the LG G Flex 2.

The Microsoft Lumia 640 XL uses Lumia Camera 5, which is just awesome. There are lots of new features that are not included in earlier versions of Lumia Camera, the main one being Rich Capture, a feature that allows you to adjust exposure of an image after it’s taken.

Then the LG G Flex 2 has the laser focused camera, which is just really pleasant to use. It shows the nine focus points that you would get on a DSLR. It’s really great. Let’s take a look at some samples.

Microsoft Lumia 640 XL LG G Flex 2

Both of these cameras are absolutely stunning. They both take crystal clear, sharp images with true colors. If I had to pick one, I’d pick the LG G Flex 2, as the colors seem to be a bit more natural in a few of them, although low light seems to be better with the Microsoft Lumia 640 XL; however, the flash is better with the LG G Flex 2, which is expected as it uses a dual LED.

Microsoft Lumia 640 XL vs LG G Flex 2: Front Camera

In my time with the Microsoft Lumia 640 XL thus far, I’ve become a big fan of the front camera. This is not the first Lumia that we’ve seen with the new 5 MP front camera, but it is the first we’ve seen running Lumia Camera 5, which means it’s the first 5 MP front camera that actually has a toggle between the front and rear camera. You know, a feature included in every Android and iOS phone since the dawn of time.

I’ve found the LG G Flex 2’s front camera to be pretty sweet as well. It’s 2.1 MP, so it’s 1080p. It’s not laser focused or anything, but it does a pretty good job. Let’s check it out.

I would say that in bright lighting, the Microsoft Lumia 640 XL is the winner. It handles lighting better; however, in lower lighting the G Flex 2 takes it. That last photo was taken around sunset.

Microsoft Lumia 640 XL vs LG G Flex 2: Battery

I think we might as well take a look at the battery. Please note that you should take this with a grain of salt. I use Geekbench 3 on Android to test the battery and I use WP Bench to test it on Windows Phone, as Geekbench 3 is not available on Windows Phone, so I don’t know for sure that they are being tested the same way. I would say, however, that it’s much more accurate than trying to compare AnTuTu scores, which we won’t even go into.

Microsoft Lumia 640 XL LG G Flex 2

Lumia 640 XL G Flex 2 BatteryOk, let me clarify something before we go any further. I had an issue about this on my last comparison with the Lumia 640 XL. Yes, the battery test on the Lumia 640 XL was run with a dark screen and no, it doesn’t give it better battery life. A black screen only provides better battery life on AMOLEDs. LCDs are backlit. It would have skewed the results on the LG G Flex 2; however, Geekbench 3 runs the test with a white screen, so we’re good.

Now, both of these phones have 3000 mAh batteries but you’ll notice that the battery life on the Microsoft Lumia 640 XL is much better. I’m not surprised.

The processor of the Microsoft Lumia 640 XL uses much less power, the screen is a lower resolution, and when the Snapdragon 810 in the LG G Flex 2 heats up, it uses more battery.

Microsoft Lumia 640 XL vs LG G Flex 2: Conclusion

Obviously, we’re talking about a phone that straddles the low end of the mid-range and a flagship, so a decision between the two relies on your budget. The LG G Flex 2 is a very powerful device and the curved screen is nothing short of extraordinary. In fact, I would go so far as to say that the LG G Flex 2 is the best phone to be released thus far in 2015.

But that doesn’t mean that the Microsoft Lumia 640 XL isn’t without its merits. Both cameras are fantastic; however, the Lumia 640 XL has better battery life. Given the value proposition, it might be fair to say that the Microsoft Lumia 640 XL is the better phone, as you get more value for your money.

About the author
Rich Woods

Being a computer programmer wasn't enough to fulfill his love of technology. In 2013, Rich founded For the Love of Tech and has been writing about his love of tech ever since.

  • Loved the comparison, congrats.
    I’m so tired of reviewers bashing a device because is not an iPhone/Galaxy S.
    But you sir, you made it right. Good job.

    One question, did you used a Sim card on the 640 XL during WP Bench test?
    I’d like to test mine as well.

    • You. Scared. The hell out of me. I didn’t see the first line and read the second line first and my heart sank and I thought “Here goes another fanboy that thinks I’m biased because I don’t have the same opinion that he has”. Then I read the next line and I smiled. Thanks.

      To answer your question, yes, I actually used a SIM in both of them. My G Flex 2 review unit came with a SIM and I actually opened up a new line on my AT&T account for the 640 XL because I was so excited about it that I wanted to use it as my main phone for two weeks.

      • Hi again Rich, I laughed with your comment. Actual laugh, not just some extra air expelled from my nostrils 😉
        I know it can be really frustrating reading all those fanboys all over the internet. You must be sick of those guys as much as I hate the mentioned reviewers.
        You know, the ones that I hate the most are those that uses scores or grades for devices according to flagship standards.
        I’m not a flagship guy, my other phone is a Moto G and I love it too. I’m more oriented to devices with great cost-benefit ratio, and I’m happy to see those devices are appreciated here.

        Talking about the Lumia and the battery life, I was really worried that i get a defective unit/battery. I felt mine was discharging faster than most users and reviewers stated.
        So I did the test:

        Wifi ON, Cellular ON, Brightness LOW
        (Auto brightness was notably lower than Low brightness in the room I was, so I choose the later. And looks like the most appropriate setting for indoors and some indirect daylight environments).

        MY RESULT: 05:55:18

        Just 3 minutes shy from your score. So, i guess I have an OK unit. I blame my carrier’s poor signal as the reason my device was using extra battery. It’s specially poor on my office’s building and my home , go figure.

        Thank you Rich, you just gained a place in my feed reader from now on and a youtube suscriber. Keep the good work.

        Greetings from México

        • Quick suggestion. We do have a Windows/Windows Phone app. That’s the best way to get the YouTube videos and latest posts and such.

          As for battery, I’ve noticed this a lot with Windows Phones. It’s gotten a lot better, but they just seem to use a lot of battery for some reason.