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 P300 and Leica V-Lux 40 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). Leica V-Lux 40 has external dimensions of 105 x 59 x 28 mm (4.13 x 2.32 x 1.1″) and weighs 210 g (0.46 lb / 7.41 oz) (including batteries).
Below you can see the front view size comparison of Nikon P300 and Leica V-Lux 40. Nikon P300 is 2mm narrower and 1mm shorter than Leica V-Lux 40 but it is also 4mm thicker.
Here is the back view size comparison of Nikon P300 and Leica V-Lux 40.
Now lets look at the top view comparison of Nikon P300 and Leica V-Lux 40.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Nikon P300 is 21g lighter than the Leica V-Lux 40 but we don't think this will make a significant difference.
Unfortunately neither Nikon Coolpix P300 nor Leica V-Lux 40 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 Compact Cameras with Weather Sealing
LCD Screen Size and Features
Nikon P300 and Leica V-Lux 40's LCD screens has the same diagonal size of 3.00".
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.