Below you can see the front view size comparison of Canon T6 and Casio EX-S12. Casio EX-S12 is clearly the smaller of the two cameras. Its body is 34mm narrower, 41mm shorter and 55mm thinner than Canon T6.
Canon T6 vs Casio EX-S12 - Front View
The chart below depicts how two cameras compare with average dimensions of the cameras in their class.
Camera Size Comparison
Select Two Cameras for Size Comparison