Below you can see the front-view size comparison of the Olympus XZ-2 iHS and Kodak Astro AZ651. The Kodak Astro AZ651 is clearly the smaller of the two cameras. Its body is 113 mm narrower, 65 mm shorter and 48 mm thinner than the Olympus XZ-2 iHS.
The chart below depicts how two cameras compare with average dimensions of the cameras in their class.