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 Pentax RZ18 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). Pentax RZ18 has external dimensions of 97 x 61 x 33 mm (3.82 x 2.4 x 1.3″) and weighs 178 g (0.39 lb / 6.28 oz) (including batteries).
Below you can see the front view size comparison of Nikon P300 and Pentax RZ18. Nikon P300 is 3mm shorter and 1mm thinner than Pentax RZ18 but it is also 6mm wider.
Comparison image of Nikon P300 and Pentax RZ18 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of Nikon P300 and Pentax RZ18.
Comparison image of Nikon P300 and Pentax RZ18 Size and Weight - Back View
Now lets look at the top view comparison of Nikon P300 and Pentax RZ18.
Top View Comparison image of Nikon P300 and Pentax RZ18 Size
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Pentax RZ18 is 11g lighter than the Nikon P300 but we don't think this will make a significant difference.
Weather Sealing
Thanks to the weather sealed body of RZ18, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to P300.
LCD Screen Size and Features
Nikon P300 and Pentax RZ18's LCD screens has the same diagonal size of 3".
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.