Olympus SZ-31MR iHS has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features Dual TruePic V processor. On the other hand, Samsung WB700 has a
14.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor .
Below you can see the SZ-31MR iHS and WB700 sensor size comparison.
Sensor Size and Resolution Comparison image of Olympus SZ-31MR iHS and Samsung WB700 Cameras
Olympus SZ-31MR iHS and Samsung WB700 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
Olympus SZ-31MR iHS
or the
Samsung WB700 ,
including hyperfocal distance.