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 Nikon L31 and Nikon S6100 side-by-side from the front, back and top in their relative dimensions. Nikon L31 has external dimensions of 96 x 59 x 29 mm (3.78 x 2.32 x 1.14″) and weighs 160 g (0.35 lb / 5.64 oz) (including batteries). 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).
Below you can see the front-view size comparison of the Nikon L31 and the Nikon S6100. Nikon S6100 is 1mm shorter and 2mm thinner than Nikon L31 but it is also 2mm wider.
Here is the back view size comparison of the Nikon L31 and Nikon S6100.
Now lets look at the top view comparison of Nikon L31 and Nikon S6100.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon L31 is 15g lighter than the Nikon S6100 but we don't think this will make a significant difference.
Unfortunately neither the Nikon Coolpix L31 nor Nikon Coolpix S6100 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 S6100's 3.00" LCD screen is slightly larger than Nikon L31's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.