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 G16 and Nikon S8100 side-by-side from the front, back and top in their relative dimensions. Canon G16 has external dimensions of 109 x 76 x 40 mm (4.29 x 2.99 x 1.57″) and weighs 356 g (0.78 lb / 12.56 oz) (including batteries). Nikon S8100 has external dimensions of 104 x 60 x 30 mm (4.09 x 2.36 x 1.18″) and weighs 180 g (0.40 lb / 6.35 oz) (including batteries).
Below you can see the front-view size comparison of the Canon G16 and the Nikon S8100. Nikon S8100 is clearly the smaller of the two cameras. Its body is 5mm narrower, 16mm shorter and 10mm thinner than Canon G16.
Here is the back view size comparison of the Canon G16 and Nikon S8100.
Now lets look at the top view comparison of Canon G16 and Nikon S8100.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon S8100 is significantly lighter (176g ) than the Canon G16 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Canon PowerShot G16 nor Nikon Coolpix S8100 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
Canon G16 and Nikon S8100's LCD screens have the same diagonal size of 3.00 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.