Sony T900 weighs 143 g (0.32 lb / 5.04 oz) and has external dimensions of 98 x 58 x 16 mm (3.86 x 2.28 x 0.63″). Considering that the average weight of Compact type cameras is 188g, Sony T900 is a remarkably light camera for its class. Even better, with a thickness of only 16mm, it is also quite small, 12mm thinner than the average of its class.
In order to give you a better idea about the real life size of Sony T900, 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 Sony T900 with its main competitors:
Sony T900 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.