Canon SX120 IS weighs 285 g (0.63 lb / 10.05 oz) and has external dimensions of 111 x 71 x 45 mm (4.37 x 2.8 x 1.77″). Considering that the average weight of Compact type cameras is 188g, Canon SX120 IS is a significantly heavy camera for its class. With a thickness of 45mm, it is not small either, 16mm thicker than the average of its class.
In order to give you a better idea about the real life size of Canon SX120 IS, we have added an image of how it looks next to a credit card and an AA type battery.
Below you can find the comparison of the weight and thickness of Canon SX120 IS with its main competitors:
Canon SX120 IS 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.