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 Nikon Df 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). Nikon Df has external dimensions of 144 x 110 x 67 mm (5.67 x 4.33 x 2.64″) and weighs 760 g (1.68 lb / 26.81 oz) (including batteries).
Below you can see the front view size comparison of Ricoh G900 and Nikon Df. Ricoh G900 is clearly the smaller of the two cameras. Its body is 26mm narrower, 44mm shorter and 34mm thinner than Nikon Df. As you can tell, actually this is not a fair size comparison since Ricoh G900 has a built-in lens but Nikon Df doesn't. Once you put a lens on Df, its thickness will increase significantly.
Here is the back view size comparison of Ricoh G900 and Nikon Df.
Now lets look at the top view comparison of Ricoh G900 and Nikon Df.
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 (513g ) than the Nikon Df 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 Df, the total kit will weigh much higher.
LCD Screen Size and Features
Nikon Df's 3.2" LCD screen is slightly larger than Ricoh G900's 3" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.