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 P510 and Panasonic G7 side-by-side from the front, back and top in their relative dimensions. Nikon P510 has external dimensions of 120 x 83 x 102 mm (4.72 x 3.27 x 4.02″) and weighs 555 g (1.22 lb / 19.58 oz) (including batteries). Panasonic G7 has external dimensions of 125 x 86 x 77 mm (4.92 x 3.39 x 3.03″) and weighs 410 g (0.90 lb / 14.46 oz) (including batteries).
Below you can see the front-view size comparison of the Nikon P510 and the Panasonic G7. Nikon P510 is 5mm narrower and 3mm shorter than Panasonic G7 but it is also 25mm thicker. As you can tell, actually this is not a fair size comparison since Nikon P510 has a built-in lens but Panasonic G7 doesn't. Once you put a lens on G7, its thickness will increase significantly.
Here is the back view size comparison of the Nikon P510 and Panasonic G7.
Now lets look at the top view comparison of Nikon P510 and Panasonic G7.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Panasonic G7 is significantly lighter (145g ) than the Nikon P510 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 G7, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the Nikon Coolpix P510 nor Panasonic Lumix DMC-G7 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 Bridge Cameras with Weather Sealing Top Mirrorless Cameras with Weather Sealing
LCD Screen Size and Features
Nikon P510 and Panasonic G7's LCD screens have the same diagonal size of 3.00 inches.
Nikon P510 features a
Tilting-only screen which is mostly only good for shooting from waist or over-the-head levels. On the other hand, Panasonic G7 sports a
Fully Articulated screen which is more flexible and useful, especially for taking selfies and video.