Panasonic SZ8 has a
16.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor and features Venus Engine processor. On the other hand, Fujifilm S1500 has a
10.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor .
Panasonic SZ8's sensor provides 6MP more than Fujifilm S1500's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Below you can see the SZ8 and S1500 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic SZ8 and Fujifilm S1500 Cameras
Panasonic SZ8 and Fujifilm S1500 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 SZ8
or the
Fujifilm S1500 ,
including hyperfocal distance.