Below you can see the front-view size comparison of the Fujifilm XP70 and Olympus E-PL1. The Fujifilm XP70 is clearly the smaller of the two cameras. Its body is 11mm narrower, 5 mm shorter and 16 mm thinner than the Olympus E-PL1.
The chart below depicts how two cameras compare with average dimensions of the cameras in their class.