Below you can see the front view size comparison of Sony RX1 and Samsung NX1. Sony RX1 is 26mm narrower and 37mm shorter than Samsung NX1 but it is also 4mm thicker.
Sony RX1 vs Samsung NX1 - Front View
Sony RX1 vs Samsung NX1 - 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