If you want a big screen, go for SGS 2. If you like it small, go for iphone 4s. Both phones are fast. Samsung can be rooted and make it running as fast or more faster up to 1.6 ghz (just like samsung galaxy note).
SGS 2 is running @ 1.2ghz (dual core), Iphone 4s running @ 1ghz (dual core).
If your a bit clumsy, you should go for Samsung rather than taking the iphone. Here's a proof.
If you want a big screen, go for SGS 2. If you like it small, go for iphone 4s. Both phones are fast. Samsung can be rooted and make it running as fast or more faster up to 1.6 ghz (just like samsung galaxy note).
SGS 2 is running @ 1.2ghz (dual core), Iphone 4s running @ 1ghz (dual core).
If your a bit clumsy, you should go for Samsung rather than taking the iphone. Here's a proof.
http://www.youtube.com/watch?v=elKxgsrJFhw