Size and weight is a big decision factor when you are trying to find the ideal camera for your needs.
In this section, We are going to illustrate Ricoh G900 and Olympus E-PL5 side-by-side from the front, back and top in their relative dimensions. Ricoh G900 has external dimensions of 118 x 66 x 33 mm (4.65 x 2.6 x 1.3″) and weighs 247 g (0.54 lb / 8.71 oz) (including batteries). Olympus E-PL5 has external dimensions of 111 x 64 x 38 mm (4.37 x 2.52 x 1.5″) and weighs 325 g (0.72 lb / 11.46 oz) (including batteries).
Below you can see the front view size comparison of Ricoh G900 and Olympus E-PL5. Olympus E-PL5 is 7mm narrower and 2mm shorter than Ricoh G900 but it is also 5mm thicker. As you can tell, actually this is not a fair size comparison since Ricoh G900 has a built-in lens but Olympus E-PL5 doesn't. Once you put a lens on E-PL5, its thickness will increase significantly.
Here is the back view size comparison of Ricoh G900 and Olympus E-PL5.
Now lets look at the top view comparison of Ricoh G900 and Olympus E-PL5.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Ricoh G900 is significantly lighter (78g ) than the Olympus E-PL5 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-PL5, the total kit will weigh much higher.
Thanks to the weather sealed body of G900, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to E-PL5.
LCD Screen Size and Features
Ricoh G900 and Olympus E-PL5's LCD screens has the same diagonal size of 3.00".
On the other hand, Olympus E-PL5 features a Tilting screen
where you can change the angle of the screen to make it easier to shoot from waist or over the head levels whereas the Ricoh G900 has a fixed type screen which provides less flexibility in shooting positions compared to E-PL5.