Below you can see the front view size comparison of Canon T6 and Pentax K-S2. Pentax K-S2 is clearly the smaller of the two cameras. Its body is 6mm narrower, 10mm shorter and 5mm thinner than Canon T6.
Canon T6 vs Pentax K-S2 - Front View
Canon T6 vs Pentax K-S2 - Top 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