Size and weight are big decision factors when you are trying to find the ideal camera for your needs.
In this section, we are going to illustrate the Ricoh GXR P10 28-300mm and Olympus E-600 side-by-side from the front, back and top in their relative dimensions. Ricoh GXR P10 28-300mm has external dimensions of 114 x 58 x 50 mm (4.49 x 2.28 x 1.97″) and weighs 367 g (0.81 lb / 12.95 oz) (including batteries). Olympus E-600 has external dimensions of 130 x 94 x 60 mm (5.12 x 3.7 x 2.36″) and weighs 515 g (1.14 lb / 18.17 oz) (including batteries).
Below you can see the front-view size comparison of the Ricoh GXR P10 28-300mm and the Olympus E-600. Ricoh GXR P10 28-300mm is clearly the smaller of the two cameras. Its body is 16mm narrower, 36mm shorter and 10mm thinner than Olympus E-600. As you can tell, actually this is not a fair size comparison since Ricoh GXR P10 28-300mm has a built-in lens but Olympus E-600 doesn't. Once you put a lens on E-600, its thickness will increase significantly.
Now lets look at the top view comparison of Ricoh GXR P10 28-300mm and Olympus E-600.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Ricoh GXR P10 28-300mm is significantly lighter (148g ) than the Olympus E-600 which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on E-600, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the Ricoh GXR P10 28-300mm F3.5-5.6 VC nor Olympus E-600 provides any type of weather sealing in their bodies, so you have to give extra care especially when you are shooting outdoors. If weather sealing is a must-have feature for you, check these sections: Top Mirrorless Cameras with Weather Sealing Top DSLR Cameras with Weather Sealing
LCD Screen Size and Features
Ricoh GXR P10 28-300mm's 3.00" LCD screen is slightly larger than Olympus E-600's 2.7" screen.