http://www.sizeasy.com/page/size_comparison/... The important ones here for me are the iPhone (which I am using right now), the HTC Kaiser (which I have my eye one), and the Curve (which is probably the ideal phone for me right now). The Curve is the smallest and I think the lightest, but definitely not the coolest. The thickness of the Kaiser is something that concerns me, b/c I have grown to love the slimness of the iPhone, but HTC has been doing a great job lately. Just for reference, the HTC Mogul (4.33" x 2.32" x 0.72") is just a bit smaller. then the Kaiser.