Your timeline does not reflect the reality of a product development cycle. But to my untrained eye, the first Galaxy S looked most like the iPhone 3GS. The Gala

Your timeline does not reflect the reality of a product development cycle. But to my untrained eye, the first Galaxy S looked most like the iPhone 3GS. The Galaxy S2 adopted a brand new design language (more business-y and kevlar-like, super thin, bump on the back for some models) and I believe it sold the most. I remember reading the specs for the S2 when it first came out and it just impressed me how significantly it outclassed all phones up to that date. It was a no-brainer phone to get at that time all on its own merits not as a cheap copy of something else.