Samsung NX10 has a
15.0MP APS-C (23.4 x 15.6 mm ) sized CMOS sensor and features DRIM Engine processor. On the other hand, Fujifilm X-A10 has a
16.0MP APS-C (23.6 x 15.6 mm ) sized CMOS sensor .
One other difference between these two cameras that is worth mentioning is that Fujifilm X-A10's sensor doesn't have an anti-alias (Low-Pass) filter. Removing anti-alias filter increases the sharpness and level of detail but at the same time, it increases the chance of moiré occurring in certain scenes.
Below you can see the NX10 and X-A10 sensor size comparison.
Sensor Size and Resolution Comparison image of Samsung NX10 and Fujifilm X-A10 Cameras
Samsung NX10 and Fujifilm X-A10 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
Samsung NX10
or the
Fujifilm X-A10 ,
including hyperfocal distance.