Samsung Galaxy Camera 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, Canon G9 X II has a
20.0MP 1″ (13.2 x 8.8 mm ) sized BSI-CMOS sensor and features DIGIC 7 processor.
Below you can see the Galaxy Camera and G9 X II sensor size comparison.
As seen above, Canon G9 X II has a 4.1x Larger sensor area than Samsung Galaxy Camera. 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.