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 Canon S120 and Nikon S31 side-by-side from the front, back and top in their relative dimensions. Canon S120 has external dimensions of 100 x 59 x 29 mm (3.94 x 2.32 x 1.14″) and weighs 217 g (0.48 lb / 7.65 oz) (including batteries). Nikon S31 has external dimensions of 105 x 65 x 42 mm (4.13 x 2.56 x 1.65″) and weighs 185 g (0.41 lb / 6.53 oz) (including batteries).
Below you can see the front-view size comparison of the Canon S120 and the Nikon S31. Canon S120 is clearly the smaller of the two cameras. Its body is 5mm narrower, 6mm shorter and 13mm thinner than Nikon S31.
Here is the back view size comparison of the Canon S120 and Nikon S31.
Now lets look at the top view comparison of Canon S120 and Nikon S31.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon S31 is significantly lighter (32g ) than the Canon S120 which may become a big advantage especially on long walking trips.
Weather Sealing
Thanks to the weather-sealed body of the S31, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the S120.
LCD Screen Size and Features
Canon S120's 3.00" LCD screen is slightly larger than Nikon S31's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.