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 S1100pj and Nikon P7100 side-by-side from the front, back and top in their relative dimensions. Nikon S1100pj has external dimensions of 101 x 68 x 24 mm (3.98 x 2.68 x 0.94″) and weighs 180 g (0.40 lb / 6.35 oz) (including batteries). Nikon P7100 has external dimensions of 116 x 77 x 48 mm (4.57 x 3.03 x 1.89″) and weighs 395 g (0.87 lb / 13.93 oz) (including batteries).
Below you can see the front-view size comparison of the Nikon S1100pj and the Nikon P7100. Nikon S1100pj is clearly the smaller of the two cameras. Its body is 15mm narrower, 9mm shorter and 24mm thinner than Nikon P7100.
Now lets look at the top view comparison of Nikon S1100pj and Nikon P7100.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon S1100pj is significantly lighter (215g ) than the Nikon P7100 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Nikon Coolpix S1100pj nor Nikon Coolpix P7100 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 S1100pj and Nikon P7100's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Nikon P7100 features a
Tilting screen where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels whereas the Nikon S1100pj has a fixed type screen which provides less flexibility in shooting positions compared to P7100.