Fujifilm S1 Pro weighs 820 g (1.81 lb / 28.92 oz) and has external dimensions of 148 x 125 x 80 mm (5.83 x 4.92 x 3.15″). Considering that the average weight of DSLR type cameras is 774g, its weight is about average in its class. With a thickness of 80mm, it also has an average thickness.
In order to give you a better idea about the real life size of Fujifilm S1 Pro, 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 Fujifilm S1 Pro with its main competitors:
Fujifilm S1 Pro 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 DSLR Cameras with Weather Sealing page.