I hate that silver band, The 4s is too short and too thick and heavy, and as you said fragile. Don't even get me started on the fugly bumpers and Otterbox cases the iPhone 4/4s is often seen in.Best looking and most comfortable iphone ever. If I had black one that was somehow 100Gbs it'd be the perfect phone.
Only flaw is that it's incredibly fragile. One drop to a hard surface and it's toast.
My iPhone 5 is perfect though. Metal, thin, light and perfect to hold. Mine is Black/Slate and looks like the monolith from 2001 (the movie).
Much better to me.