I'm reasonably certain the "newness" goes S100, then S300, then S110. S110 is an update to the S100 if I remember right. I almost got the S300 but eventually chose quality over portability and went with the Olympus C-490UZ. The deciding factor was the fact that I take a lot of pictures of sporting events, and the 10X optical zoom and extremely versatile exposure options are important. When I just want to capture vacation photos or simple family get-togethers, I sometimes wish I had a smaller camera, though.