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 SP-820UZ 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 SP-820UZ has external dimensions of and weighs 485 g (1.07 lb / 17.11 oz) (including batteries).
Below you can see the front view size comparison of Nikon P500 and Olympus SP-820UZ. Olympus SP-820UZ is 6mm shorter and 10mm thinner than Nikon P500 but it is also 1mm wider.
Comparison image of Nikon P500 and Olympus SP-820UZ Size, Weight and External Dimensions - Front View
Now lets look at the top view comparison of Nikon P500 and Olympus SP-820UZ.
Top View Comparison image of Nikon P500 and Olympus SP-820UZ Size
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Olympus SP-820UZ is 9g lighter than the Nikon P500 but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither Nikon Coolpix P500 nor Olympus Stylus SP-820UZ 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 Compact Cameras with Weather Sealing
LCD Screen Size and Features
Nikon P500 and Olympus SP-820UZ's LCD screens has the same diagonal size of 3".
On the other hand, Nikon P500 features a
Tilting screen where you can change the angle of the screen to make it easier to shoot from waist or over the head levels whereas the Olympus SP-820UZ has a fixed type screen which provides less flexibility in shooting positions compared to P500.