Olympus E-M1 weighs 497 g (1.10 lb / 17.53 oz) and has external dimensions of 130 x 94 x 63 mm (5.13 x 3.68 x 2.48″). Considering that the average weight of Mirrorless type cameras is 437g, its weight is about average in its class. With a thickness of 63mm, it is large, 12mm thicker than the average of its class.
Here is the front and top view image of Olympus E-M1 with the dimensions:
In order to give you a better idea about the real life size of Olympus E-M1, we have added an image of how it looks next to a credit card and an AA type battery.
Now lets compare the weight and thickness of Olympus E-M1 with its main competitors:
Olympus E-M1 Size Compared to Main Competitors
Olympus E-M1 has environmental sealings on its body which makes it a weather resistant camera, providing resistance against the water and dust getting in to the camera. If you like outdoors photography and want to be able to use your camera in extreme conditions, Olympus E-M1 will serve you well. If you attach one of these Olympus E-M1 weather Sealed lenses to your camera, you will have a great all weather kit.