Below you can see the front-view size comparison of the Ricoh WG-5 GPS and Ricoh WG-50. The Ricoh WG-50 is clearly the smaller of the two cameras. Its body is 2 mm narrower, 3 mm shorter and 2 mm thinner than the Ricoh WG-5 GPS.
The chart below depicts how two cameras compare with average dimensions of the cameras in their class.