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 S9100 and Olympus VH-515 side-by-side from the front, back and top in their relative dimensions. Nikon S9100 has external dimensions of 105 x 62 x 35 mm (4.13 x 2.44 x 1.38″) and weighs 214 g (0.47 lb / 7.55 oz) (including batteries). Olympus VH-515 has external dimensions of 102 x 60 x 21 mm (4.02 x 2.36 x 0.83″) and weighs 152 g (0.34 lb / 5.36 oz) (including batteries).
Below you can see the front view size comparison of Nikon S9100 and Olympus VH-515. Olympus VH-515 is clearly the smaller of the two cameras. Its body is 3mm narrower, 2mm shorter and 14mm thinner than Nikon S9100.
Comparison image of Nikon S9100 and Olympus VH-515 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of Nikon S9100 and Olympus VH-515.
Comparison image of Nikon S9100 and Olympus VH-515 Size and Weight - Back View
Now lets look at the top view comparison of Nikon S9100 and Olympus VH-515.
Top View Comparison image of Nikon S9100 and Olympus VH-515 Size
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Olympus VH-515 is significantly lighter (62g ) than the Nikon S9100 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither Nikon Coolpix S9100 nor Olympus VH-515 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 S9100 and Olympus VH-515'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.