Wow, this thread turned into an apple bash in no time at all. Android is not a single phone it's an os. Samsung makes so many models of course they are going to out sell the single iPhone model.
Samsung have exploded yes, but even with cut price discounts and free deals they still can't sell a single product that can compete with the iPhone and they nicked pretty much the whole idea from apple.
You only have to look at how bad Samsung's so called smart TVs are, to realise without apple to show them the way they can't make software to save their lives. Samsung make plasticky hardware with google, they are not even close to being able to make anything like apple does. Even Htc make better hardware and software addons.
To all the Samsung fans claiming Samsung and apple products are the same price, they are not! Samsung's flagship phones the s4 might be close to the same price but Samsung sell a tonne of other models that aren't much further away from feature phones, these freebie cheap phones are where Samsung are getting 7x growth.
I would love to see a phone model only breakdown, I think most would be surprised that no single phone is selling anything like the iPhone.