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 P300 and Nikon L820 side-by-side from the front, back and top in their relative dimensions. Nikon P300 has external dimensions of 103 x 58 x 32 mm (4.06 x 2.28 x 1.26″) and weighs 189 g (0.42 lb / 6.67 oz) (including batteries). Nikon L820 has external dimensions of 111 x 76 x 85 mm (4.37 x 2.99 x 3.35″) and weighs 470 g (1.04 lb / 16.58 oz) (including batteries).
Below you can see the front-view size comparison of the Nikon P300 and the Nikon L820. Nikon P300 is clearly the smaller of the two cameras. Its body is 8mm narrower, 18mm shorter and 53mm thinner than Nikon L820.
Here is the back view size comparison of the Nikon P300 and Nikon L820.
Now lets look at the top view comparison of Nikon P300 and Nikon L820.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon P300 is significantly lighter (281g ) than the Nikon L820 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Nikon Coolpix P300 nor Nikon Coolpix L820 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 Bridge Cameras with Weather Sealing
LCD Screen Size and Features
Nikon P300 and Nikon L820's LCD screens have the same diagonal size of 3.00 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.