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 G9 X and Nikon S100 side-by-side from the front, back and top in their relative dimensions. Canon G9 X has external dimensions of 98 x 58 x 31 mm (3.86 x 2.28 x 1.21″) and weighs 209 g (0.46 lb / 7.37 oz) (including batteries). Nikon S100 has external dimensions of 99 x 65 x 18 mm (3.9 x 2.56 x 0.71″) and weighs 175 g (0.39 lb / 6.17 oz) (including batteries).
Below you can see the front-view size comparison of the Canon G9 X and the Nikon S100. Canon G9 X is 1mm narrower and 7mm shorter than Nikon S100 but it is also 13mm thicker.
Here is the back view size comparison of the Canon G9 X and Nikon S100.
Now lets look at the top view comparison of Canon G9 X and Nikon S100.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon S100 is significantly lighter (34g ) than the Canon G9 X which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Canon PowerShot G9 X nor Nikon Coolpix S100 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 Compact Cameras with Weather Sealing
LCD Screen Size and Features
Nikon S100's 3.50" LCD screen is slightly larger than Canon G9 X's 3 screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.