Samsung Galaxy Camera 4G has a 16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features 1.4GHz Quad-Core processor. On the other hand, Casio EX-100 has a 12.0MP 1/1.7-inch (7.44 x 5.58 mm ) sized CMOS sensor .
Below you can see the Galaxy Camera 4G and EX-100 sensor size comparison.
As seen above, Casio EX-100 has a 1.5x Larger sensor area than Samsung Galaxy Camera 4G. 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.