Below you can see the front-view size comparison of the Fujifilm Z900EXR and Olympus E-PL7. The Fujifilm Z900EXR is clearly the smaller of the two cameras. Its body is 14mm narrower, 8 mm shorter and 20 mm thinner than the Olympus E-PL7.
The chart below depicts how two cameras compare with average dimensions of the cameras in their class.