Pentax WS80 has a
10.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features Prime processor. On the other hand, Olympus FE-5010 has a
12.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor .
Below you can see the WS80 and FE-5010 sensor size comparison.
Sensor Size and Resolution Comparison image of Pentax WS80 and Olympus FE-5010 Cameras
Pentax WS80 and Olympus FE-5010 have almost the same sensor size, so neither of them has any significant advantage over the other in terms of providing control over depth of field when used with the same focal length and aperture.
Sensor size sets the circle of confusion, so it drives how much depth of field each
of these bodies gives you at a given aperture. You can calculate it exactly for the
Pentax WS80
or the
Olympus FE-5010 ,
including hyperfocal distance.