Nikon S3500 has a
20.0MP 1/2.3-inch (6.16 x 4.62 mm ) sized CCD sensor . On the other hand, Nikon S6200 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features Expeed C2 processor.
Below you can see the S3500 and S6200 sensor size comparison.
Sensor Size and Resolution Comparison image of Nikon S3500 and Nikon S6200 Cameras
Nikon S3500 and Nikon S6200 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
Nikon S3500
or the
Nikon S6200 ,
including hyperfocal distance.