Fujifilm X-A5 has a
24.0MP APS-C (23.5 x 15.7 mm ) sized CMOS sensor . On the other hand, Sony a5000 has a
20.0MP APS-C (23.2 x 15.4 mm ) sized CMOS sensor and features Bionz X processor.
Below you can see the X-A5 and a5000 sensor size comparison.
Sensor Size and Resolution Comparison image of Fujifilm X-A5 and Sony a5000 Cameras
Fujifilm X-A5 and Sony a5000 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
Fujifilm X-A5
or the
Sony a5000 ,
including hyperfocal distance.