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 S6100 and Olympus SP-100 side-by-side from the front, back and top in their relative dimensions. 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). Olympus SP-100 has external dimensions of 122 x 91 x 133 mm (4.8 x 3.6 x 5.25″) and weighs 594 g (1.31 lb / 20.95 oz) (including batteries).
Below you can see the front view size comparison of Nikon S6100 and Olympus SP-100. Nikon S6100 is clearly the smaller of the two cameras. Its body is 24mm narrower, 33mm shorter and 106mm thinner than Olympus SP-100.
Here is the back view size comparison of Nikon S6100 and Olympus SP-100.
Now lets look at the top view comparison of Nikon S6100 and Olympus SP-100.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Nikon S6100 is significantly lighter (419g ) than the Olympus SP-100 which may become a big advantage especially on long walking trips.
Unfortunately neither Nikon Coolpix S6100 nor Olympus Stylus SP-100 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 Top Bridge Cameras with Weather Sealing
LCD Screen Size and Features
Nikon S6100 and Olympus SP-100's LCD screens has the same diagonal size of 3.00".
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.