Apple iPhone 6s vs Samsung Galaxy S6 vs LG G4 vs HTC One (M9) – 2015 Spec Comparison

The phone spec comparison table will only show up well on non-mobile devices.
This post is focused on a 2015 spec comparison between 4 of the current flagship phones for Apple, Samsung, LG, and HTC. In 2014, I wrote a phone comparison between the Apple iPhone 6, Samsung Galaxy S5, LG G3, and the HTC One (M8). This year’s phone comparison is the Apple iPhone 6s vs Samsung Galaxy S6 vs LG G4 vs HTC One (M9). I included links to each of the phones on Amazon (you can read my Disclosure Policy regarding Amazon affiliate links). Below you will see a table with all their specs laid out. If you’re debating about which phone to get, this spec comparison should help determine what phone has what you want:

Apple iPhone 6s Samsung Galaxy S6 LG G4 HTC One (M9)
Operating system iOS 9 Android 5.1 (Lollipop) Android 5.1 (Lollipop) Android 5.1 (Lollipop)
Materials Main body: aluminum Main body: glass; Accents: aluminum Main body: plastic Main body: aluminum
Processor Apple A9 8-core 2.1 GHz Exynos 7 Octa 7420 6-core 1.8 GHz Qualcomm Snapdragon 808 8-core 2.0 GHz Qualcomm Snapdragon 810
RAM 2 GB 3 GB 3 GB 3 GB
Screen size 4.7 in 5.1 in 5.5 in 5.0 in
Screen resolution 1334 x 750 2560 x 1440 2560 x 1440 1920 x 1080
Pixel density 326ppi 577ppi 538ppi 441ppi
Screen type IPS AMOLED IPS S-LCD 3
Rear camera, video 12 megapixels; 4K HD video 16 megapixels; 4K HD video 16 megapixels; 4K HD video 20 megapixels, 4K HD video
Front-facing camera 5.0 megapixels 5.0 megapixels 8.0 megapixels 4.0 megapixels
Memory card slot (supplied) N/A N/A MicroSD MicroSD
Size 138.3 x 67.1 x 7.1 mm 143.4 x 70.5 x 6.8 mm 148.9 x 76.1 x 9.8 mm 144.6 x 69.7 x 9.6 mm
Weight 5.04 oz (143g) 4.87 oz (138g) 5.47 oz (155g) 5.54 oz (157g)
Battery capacity 1,715 mAh 2,550 mAh 3,000 mAh 2,840 mAh
Removable battery No No Yes No
Water-resistant No No No Splash resistant
As you can see from the specs, each phone has a little something different to offer.


If speed is your biggest desire, you're probably going to be good with any of the phones listed. For single-threaded operations, the Apple iPhone 6s does this best with its A9 chip. The Android powered phones follow closely behind the iPhone. However, if you are doing anything that would be multi-threaded, any of the Android phones will perform much better than the iPhone would (the iPhone 6s is poor at multi-threaded tasks). Also, all the Android phones have 3 GB of RAM whereas the iPhone 6s has only 2 GB of RAM.


If the quality of your photos is important, you probably want to go with the HTC One (M9)'s 20 megapixel camera. However, both the Samsung Galaxy S6 and the LG G4 have 16 megapixel cameras which take excellent pictures as well. The LG G4 also has the highest megapixel front-facing camera (8 MP) which will make even your selfies look good!


As far as the display screen goes, both the Samsung Galaxy S6 and the LG G4 have an impressive 2560 x 1440 resolution which gives the Galaxy 577ppi (pixels per inch) and the G4 538ppi. The HTC One (M9) has a full HD screen (1920 x 1080). Meanwhile, the iPhone 6s STILL only has a 1334 x 750 resolution screen with 326ppi which is the same as the iPhone 6 had.


If battery capacity is what you're looking for, any of the Android phones (S6, G4, or M9) would be a good choice. Yes, the Android phones have higher density displays to power, but still have impressive batteries with each of the Android phones sporting at least 2,500 mAh batteries. The battery capacity of the iPhone 6s just isn't up to par with only 1,715 mAh which is actually slightly less capacity than the iPhone 6 had.


If thinness and weight is a big factor for you, the Galaxy S6 is actually the lightest and thinnest phone out of the 4 phones listed which is a change from last year's comparison that I wrote. The Samsung Galaxy S6 weighs 4.87 oz and is 6.8 mm thin.

Other Features

The HTC One (M9) is the only phone of the 4 listed that is splash resistant. This could be a big plus for some people. Also, if you want a removable battery, then the only phone to offer that is the LG G4. All the phones offer NFC (Near Field Communication) and support 4G. If you want an external memory slot for a microSD card (to upgrade your storage for cheap), then you have to go with either the LG G4 or the HTC One (M9) because Apple has never offered a microSD card and Samsung just took away the microSD card with the latest S6.

Hopefully that helps you decide which phone to buy if you are debating between these 4 flagship phones from Apple, Samsung, LG, and HTC!

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