Olympus 1s weighs 402 g (0.89 lb / 14.18 oz) and has external dimensions of 116 x 87 x 57 mm (4.57 x 3.43 x 2.24″). Considering that the average weight of DSLR-Like type cameras is 591g, Olympus 1s is a remarkably light camera for its class. Even better, with a thickness of only 57mm, it is also quite small, 47mm thinner than the average of its class.
Here is the front and top view image of Olympus 1s with the dimensions:
In order to give you a better idea about the real life size of Olympus 1s, 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 1s with its main competitors:
Olympus 1s 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 Bridge Cameras with Weather Sealing page.