CameraSizes is a neat website that allows you to compare the physical sizes of different cameras. Simply select two cameras using the drop down menus for quick comparison. You can also see the cameras from side, top and back views.
Camera size is a web app which allows you to compare two different digital cameras side by side and comprehend the relative physical size differences between them. Furthermore, you can view the life-size physical dimensions of the camera on your LCD screen, as if you were looking at it at the camera store. The camera’s list is being updated daily, including mirrorless, DSLR and point-and-shoot digital cameras. – CameraSize