Below you can see the front view size comparison of Nikon 1 J3 and Samsung NX2000. Nikon 1 J3 is clearly the smaller of the two cameras. Its body is 18mm narrower, 4mm shorter and 7mm thinner than Samsung NX2000.
Nikon 1 J3 vs Samsung NX2000 - Front View
Nikon 1 J3 vs Samsung NX2000 - 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