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 L100 and Nikon P7800 side-by-side from the front, back and top in their relative dimensions. Nikon L100 has external dimensions of 110 x 72 x 78 mm (4.33 x 2.83 x 3.07″) and weighs 360 g (0.79 lb / 12.70 oz) (including batteries). Nikon P7800 has external dimensions of 119 x 78 x 50 mm (4.69 x 3.07 x 1.97″) and weighs 399 g (0.88 lb / 14.07 oz) (including batteries).
Below you can see the front-view size comparison of the Nikon L100 and the Nikon P7800. Nikon L100 is 9mm narrower and 6mm shorter than Nikon P7800 but it is also 28mm thicker.
Here is the back view size comparison of the Nikon L100 and Nikon P7800.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon L100 is 39g lighter than the Nikon P7800 but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither the Nikon Coolpix L100 nor Nikon Coolpix P7800 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 L100 and Nikon P7800's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Nikon P7800 sports a
Fully Articulated screen which you can change the angle and position of the screen almost freely, making it possible to shoot from waist or over-the-head levels, and especially very useful for shooting selfies and video. Nikon L100's LCD screen is a fixed type which provides almost no flexibility in shooting positions compared to P7800.