Pentax K-m weighs
590 g (1.30 lb / 20.81 oz) and has external dimensions of
123 x 92 x 68 mm (4.84 x 3.62 x 2.68″). Considering that the average weight of DSLR type cameras is 773g, Pentax K-m is a remarkably light camera for its class. With a thickness of 68mm, it has an average thickness for its class.
Weight Comparison
DSLR Cameras
Thickness Comparison
DSLR Cameras
Here is the front and top view image of Pentax K-m with the dimensions:
Front and Top View External Dimensions and Size of Pentax K-m Camera Body
In order to give you a better idea about the real life size of Pentax K-m, we have added an image of how it looks next to a credit card and an AA type battery.
Physical size of the Pentax K-m Body Compared to a Credit Card and an AA Battery
Below you can find the comparison of the weight and thickness of Pentax K-m with its main competitors:
Pentax K-m Size Compared to Main Competitors
Weather Sealing
Pentax K-m 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.