Canon G16 weighs 356 g (0.78 lb / 12.56 oz) and has external dimensions of 109 x 76 x 40 mm (4.29 x 2.99 x 1.57″). Considering that the average weight of Compact type cameras is 188g, Canon G16 is a significantly heavy camera for its class. With a thickness of 40mm, it is not small either, 11mm thicker than the average of its class.
Here is the front and top view image of Canon G16 with the dimensions:
In order to give you a better idea about the real life size of Canon G16, 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 Canon G16 with its main competitors:
Canon G16 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.