Great otterbox dry box, I got the clear version as recommended by other reviews and like it. After reading the size dementions between this (3000) and the 2000 I went with this one, I wanted to keep my ipod 4g with otterbox defender safe inside and eventually an iphone with either a defender or armor case. So i compared the sizes and ended up with this 1. First, at least the clear version of this box is way bigger then u would expect, it dwarfs my little ipod in there, but leaves plenty of room for wallet/anything else. It is much to big for a pocket or anything like that, but would easily fit in a backpack and comfortibly fits in your hand when u carry it.  In conclusion, if u want the extra space, get this 1, if not and you want just your phone/other small items, get the 2000. Note: (will fit an iphone 3-4-5  with pretty much any case on it and still have plenty of room for wallet/anything else)