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 L31 and Samsung WB150F 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). Samsung WB150F has external dimensions of 107 x 6 1 x 23 mm and weighs 188g (including batteries).
Below you can see the front view size comparison of Nikon L31 and Samsung WB150F. Nikon L31 is 11mm narrower and 2mm shorter than Samsung WB150F but it is also 6mm thicker.
Now lets look at the top view comparison of Nikon L31 and Samsung WB150F.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Nikon L31 is significantly lighter (28g ) than the Samsung WB150F which may become a big advantage especially on long walking trips.
Unfortunately neither Nikon Coolpix L31 nor Samsung WB150F 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
Samsung WB150F's 3" 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.