Sony WX50 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features BIONZ processor. On the other hand, Panasonic ZR1 has a
12.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor and features Venus Engine V processor.
Below you can see the WX50 and ZR1 sensor size comparison.
Sensor Size and Resolution Comparison image of Sony WX50 and Panasonic ZR1 Cameras
Sony WX50 and Panasonic ZR1 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
Sony WX50
or the
Panasonic ZR1 ,
including hyperfocal distance.