Just how many S2 models are there?

[Surfer Joe]

I was listening to a radio program that mentioned that there are various models of the Samsung S2.
This was not about memory amount but about screen sizes, processor speeds and features such as NFC.
Is this true? And how can I find out who sells them?
Is it a spec variation based on country?
I am in the UK.
Is it based on the sort of contract that you get?
I am only interested in an unlocked model and using pay as you go.
Thanks for any advice.

 

[semus]

Im not sure about this, because where i live we don't have more than 1 version, but if you go to the Android Phones section of these forums, you'll see in the list: Galaxy s 2 - AT&T , T-Mobile, Sprint, International.
so i guess those are the different versions, but im not sure which is uk, or us..

 

[ironass]

Start counting:-

All Samsung phones

 

[semus]

there are too many..

 

[Sixel]

Just like the Galaxy S, there are too many versions.