Sony S950 weighs 167 g (0.37 lb / 5.89 oz) and has external dimensions of 93 x 56 x 24 mm (3.66 x 2.2 x 0.94″). Considering that the average weight of Compact type cameras is 188g, its weight is about average in its class. On the other hand, with a thickness of only 24mm, it is quite small, 4mm thinner than the average of its class.
Here is the front and top view image of Sony S950 with the dimensions:
Now lets compare the weight and thickness of Sony S950 with its main competitors:
Sony S950 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 Compact Cameras with Weather Sealing page.