I have to share this nerd story... I have owned the SO and S3, and just upgraded to the S4... I debated the upgrade, maybe even felt a bit guilty, the s3 is quite capable but... I wanted the larger screen size. Just because. Cue forward, I get the S4 watch first, wear it a couple of days with the information screen with extra complications...then I pair it to a new phone, which causes it to reset to my original watch face that I have literally worn (and was fine with) since the SO. Suddenly I really missed all the extra complications and couldn't see myself ever going back. I almost panicked trying to figure out how to get back to my new info screen. I don't regret my decision to move from the S3 to S4 at all now.