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 L31 and Pentax RZ18 side-by-side from the front, back and top in their relative dimensions. Nikon L31 has external dimensions of 96 x 59 x 29 mm (3.78 x 2.32 x 1.14″) and weighs 160 g (0.35 lb / 5.64 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 the Nikon L31 and the Pentax RZ18. Nikon L31 is clearly the smaller of the two cameras. Its body is 1mm narrower, 2mm shorter and 4mm thinner than Pentax RZ18.
Here is the back view size comparison of the Nikon L31 and Pentax RZ18.
Now lets look at the top view comparison of Nikon L31 and Pentax RZ18.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon L31 is 18g lighter than the Pentax RZ18 but we don't think this will make a significant difference.
Thanks to the weather-sealed body of the RZ18, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the L31.
LCD Screen Size and Features
Pentax RZ18's 3.00" LCD screen is slightly larger than Nikon L31's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.