Panasonic TS4 has a
12.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor and features Venus Engine FHD processor. On the other hand, Casio EX-ZR700 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CMOS sensor and features EXILIM Engine HS 3 processor.
Below you can see the TS4 and EX-ZR700 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic TS4 and Casio EX-ZR700 Cameras
Panasonic TS4 and Casio EX-ZR700 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
Panasonic TS4
or the
Casio EX-ZR700 ,
including hyperfocal distance.