I have the 16 and I still have 13 gigs free. I have a few apps installed and i use Safari for most stuff. Watch video streaming, so 16 is plenty for me. Haven't put any of my iTunes movies on it yet, but i have all those on my 16gb iPhone and that's not full either. Have no intentions of putting any music on it. So 16 is more than enough for me. It all depends on what you plan to do with it. I got it mostly for web use and ebooks.