Olympus E-PL9 weighs 380 g (0.84 lb / 13.40 oz) and has external dimensions of 117 x 68 x 39 mm (4.61 x 2.68 x 1.54″). Considering that the average weight of Mirrorless type cameras is 445g, its weight is about average in its class. On the other hand, with a thickness of only 39mm, it is quite small, 11mm thinner than the average of its class.
Here is the front and top view image of Olympus E-PL9 with the dimensions:
In order to give you a better idea about the real life size of Olympus E-PL9, we have added an image of how it looks next to a credit card and an AA type battery.
Now let's compare Olympus E-PL9 size with the camera that it replaced: Olympus E-PL8. Olympus E-PL8 is clearly the smaller of the two cameras. Its body is 2mm narrower, 1mm shorter and 1mm thinner than Olympus E-PL9.
Below you can find the comparison of the weight and thickness of Olympus E-PL9 with its main competitors:
Olympus E-PL9 Size Compared to Main Competitors
Olympus E-PL9 doesn't have any environmental sealings on its body so you got to be extra careful to protect it against water and dust. If you shoot under these conditions very often, consider checking Top Mirrorless Cameras with Weather Sealing page.