Samsung CL80 has a
14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor . On the other hand, Ricoh WG-4 GPS has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor .
Below you can see the CL80 and WG-4 GPS sensor size comparison.
Samsung CL80 and Ricoh WG-4 GPS have the same sensor sizes so they will provide same level of control over the depth of field when used with same focal length and aperture.