Olympus E-PL3 weighs 313 g (0.69 lb / 11.04 oz) and has external dimensions of 110 x 64 x 37 mm (4.33 x 2.52 x 1.46″). Considering that the average weight of Mirrorless type cameras is 445g, Olympus E-PL3 is a remarkably light camera for its class. Even better, with a thickness of only 37mm, it is also quite small, 13mm thinner than the average of its class.
Here is the front and top view image of Olympus E-PL3 with the dimensions:
In order to give you a better idea about the real life size of Olympus E-PL3, 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-PL3 size with the camera that it replaced: Olympus E-PL2. Olympus E-PL3 is clearly the smaller of the two cameras. Its body is 4mm narrower, 8mm shorter and 5mm thinner than Olympus E-PL2.
Below you can find the comparison of the weight and thickness of Olympus E-PL3 with its main competitors:
Olympus E-PL3 Size Compared to Main Competitors
Olympus E-PL3 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.