Below you can see the front view size comparison of Olympus E-PL7 and Olympus E-M10. Olympus E-PL7 is clearly the smaller of the two cameras. Its body is 4mm narrower, 15mm shorter and 8mm thinner than Olympus E-M10.
Olympus E-PL7 vs Olympus E-M10 - Front View
Olympus E-PL7 vs Olympus E-M10 - 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