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 P500 and Panasonic G5 side-by-side from the front, back and top in their relative dimensions. Nikon P500 has external dimensions of 116 x 84 x 10 mm (4.57 x 3.31 x 4.06″) and weighs 494 g (1.09 lb / 17.43 oz) (including batteries). Panasonic G5 has external dimensions of 120 x 83 x 71 mm (4.72 x 3.27 x 2.8″) and weighs 396 g (0.87 lb / 13.97 oz) (including batteries).
Below you can see the front view size comparison of Nikon P500 and Panasonic G5. Panasonic G5 is 1mm shorter and 32mm thinner than Nikon P500 but it is also 4mm wider. As you can tell, actually this is not a fair size comparison since Nikon P500 has a built-in lens but Panasonic G5 doesn't. Once you put a lens on G5, its thickness will increase significantly.
Here is the back view size comparison of Nikon P500 and Panasonic G5.
Now lets look at the top view comparison of Nikon P500 and Panasonic G5.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Panasonic G5 is significantly lighter (98g ) than the Nikon P500 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 G5, the total kit will weigh much higher.
Unfortunately neither Nikon Coolpix P500 nor Panasonic Lumix DMC-G5 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 Bridge Cameras with Weather Sealing Top Mirrorless Cameras with Weather Sealing
LCD Screen Size and Features
Nikon P500 and Panasonic G5's LCD screens has the same diagonal size of 3".
Nikon P500 features a Tilting only screen
which is mostly only good for shooting from waist or over the head levels. On the other hand, Panasonic G5 sports a Fully Articulated screen
which is more flexible and useful especially for taking Selfie shots and video.