Both Fujifilm F200EXR and Canon S110 have 12.0 MP resolution sensors but Fujifilm F200EXR's sensor is 1/1.6-inch (8 x 6 mm ) and Canon S110's sensor is 1/1.7-inch (7.44 x 5.58 mm ).
Since Fujifilm F200EXR'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 Canon S110.
Below you can see the F200EXR and S110 sensor size comparison.
As seen above, Fujifilm F200EXR has a 1.2x Larger sensor area than Canon S110. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.