Both Panasonic TS6 and Samsung Galaxy Camera 2 have 16.0 MP resolution sensors but Panasonic TS6's sensor is 1/2.33' (6.08 x 4.56 mm ) and Samsung Galaxy Camera 2's sensor is 1/2.3-inch (6.17 x 4.55 mm ).
Since Samsung Galaxy Camera 2's has a larger sensor area with the same resolution, this means that it also has a larger pixel area hence better light collecting capacity for a given aperture compared to Panasonic TS6.
Below you can see the TS6 and Galaxy Camera 2 sensor size comparison.
Panasonic TS6 and Samsung Galaxy Camera 2 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.