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 S9900 and Panasonic GX7 side-by-side from the front, back and top in their relative dimensions. Nikon S9900 has external dimensions of 112 x 66 x 40 mm (4.41 x 2.6 x 1.57″) and weighs 289 g (0.64 lb / 10.19 oz) (including batteries). Panasonic GX7 has external dimensions of 123 x 71 x 55 mm (4.83 x 2.78 x 2.15″) and weighs 402 g (0.89 lb / 14.18 oz) (including batteries).
Below you can see the front-view size comparison of the Nikon S9900 and the Panasonic GX7. Nikon S9900 is clearly the smaller of the two cameras. Its body is 11mm narrower, 5mm shorter and 15mm thinner than Panasonic GX7. As you can tell, actually this is not a fair size comparison since Nikon S9900 has a built-in lens but Panasonic GX7 doesn't. Once you put a lens on GX7, its thickness will increase significantly.
Here is the back view size comparison of the Nikon S9900 and Panasonic GX7.
Now lets look at the top view comparison of Nikon S9900 and Panasonic GX7.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon S9900 is significantly lighter (113g ) than the Panasonic GX7 which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on GX7, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the Nikon Coolpix S9900 nor Panasonic Lumix DMC-GX7 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 Top Mirrorless Cameras with Weather Sealing
LCD Screen Size and Features
Nikon S9900 and Panasonic GX7's LCD screens have the same diagonal size of 3.00 inches.
Panasonic GX7 features a
Tilting-only screen which is mostly only good for shooting from waist or over-the-head levels. On the other hand, Nikon S9900 sports a
Fully Articulated screen which is more flexible and useful, especially for taking selfies and video.