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 Olympus E-M10 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). Olympus E-M10 has external dimensions of 119 x 82 x 46 mm (4.69 x 3.24 x 1.81″) 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 Olympus E-M10. Olympus E-M10 is 2mm shorter and 57mm thinner than Nikon P500 but it is also 3mm wider. As you can tell, actually this is not a fair size comparison since Nikon P500 has a built-in lens but Olympus E-M10 doesn't. Once you put a lens on E-M10, its thickness will increase significantly.
Comparison image of Nikon P500 and Olympus E-M10 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of Nikon P500 and Olympus E-M10.
Comparison image of Nikon P500 and Olympus E-M10 Size and Weight - Back View
Now lets look at the top view comparison of Nikon P500 and Olympus E-M10.
Top View Comparison image of Nikon P500 and Olympus E-M10 Size
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Olympus E-M10 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 E-M10, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither Nikon Coolpix P500 nor Olympus OM-D E-M10 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 Olympus E-M10's LCD screens has the same diagonal size of 3".
Both cameras feature
Tilting screens where you can change the angle of the screen to make it easier to shoot from waist or over the head levels.