Below you can see the front view size comparison of Samsung NX2000 and Pentax K-70. Samsung NX2000 is clearly the smaller of the two cameras. Its body is 7mm narrower, 28mm shorter and 38mm thinner than Pentax K-70.
Samsung NX2000 vs Pentax K-70 - Front View
Samsung NX2000 vs Pentax K-70 - 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