I've been trying to determine what new cell phone I want to get since my current personal one is pretty old. One of the most important features that I am considering is its size. I want to get a smartphone, but most are quite bulky. I've been using this site to compare sizes between the phones that I am interested in. The top contender right now is the Blackberry Pearl.
You just need to know the dimensions of the product to be able to use the tool.