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 L120 and Nikon S100 side-by-side from the front, back and top in their relative dimensions. Nikon L120 has external dimensions of 110 x 77 x 78 mm (4.33 x 3.03 x 3.07″) and weighs 431 g (0.95 lb / 15.20 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 Nikon L120 and Nikon S100. Nikon S100 is clearly the smaller of the two cameras. Its body is 11mm narrower, 12mm shorter and 60mm thinner than Nikon L120.
Here is the back view size comparison of Nikon L120 and Nikon S100.
Now lets look at the top view comparison of Nikon L120 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 (256g ) than the Nikon L120 which may become a big advantage especially on long walking trips.
Unfortunately neither Nikon Coolpix L120 nor Nikon Coolpix S100 provides any type of weather sealing in their body, 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 Nikon L120's 3" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.