Fujifilm X70 has a
16.0MP APS-C (23.6 x 15.6 mm ) sized CMOS X-TRANS II sensor and features EXR Processor II processor. On the other hand, Leica X1 has a
12.0MP APS-C (23.6 x 15.8 mm ) sized CMOS sensor .
Below you can see the X70 and X1 sensor size comparison.
Sensor Size and Resolution Comparison image of Fujifilm X70 and Leica X1 Cameras
Fujifilm X70 and Leica X1 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 X70
or the
Leica X1 ,
including hyperfocal distance.