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 Nikon S6100 and Canon 6D side-by-side from the front, back and top in their relative dimensions. Nikon S6100 has external dimensions of 98 x 58 x 27 mm (3.86 x 2.28 x 1.06″) and weighs 175 g (0.39 lb / 6.17 oz) (including batteries). Canon 6D has external dimensions of 145 x 111 x 71 mm (5.71 x 4.37 x 2.8″) and weighs 770 g (1.70 lb / 27.16 oz) (including batteries).
Below you can see the front view size comparison of Nikon S6100 and Canon 6D. Nikon S6100 is clearly the smaller of the two cameras. Its body is 47mm narrower, 53mm shorter and 44mm thinner than Canon 6D. As you can tell, actually this is not a fair size comparison since Nikon S6100 has a built-in lens but Canon 6D doesn't. Once you put a lens on 6D, its thickness will increase significantly.
Here is the back view size comparison of Nikon S6100 and Canon 6D.
Now lets look at the top view comparison of Nikon S6100 and Canon 6D.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Nikon S6100 is significantly lighter (595g ) than the Canon 6D 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 6D, the total kit will weigh much higher.
Thanks to the weather sealed body of 6D, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to S6100.
LCD Screen Size and Features
Nikon S6100 and Canon 6D's LCD screens has the same diagonal size of 3".
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.