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. On the other hand, 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.
Below you can see the EX-ZR700 and TS4 sensor size comparison.
Sensor Size and Resolution Comparison image of Casio EX-ZR700 and Panasonic TS4 Cameras
Casio EX-ZR700 and Panasonic TS4 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
Casio EX-ZR700
or the
Panasonic TS4 ,
including hyperfocal distance.