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 Sony HX7V 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). Sony HX7V has external dimensions of 102 x 58 x 29 mm (4.02 x 2.28 x 1.14″) and weighs 208 g (0.46 lb / 7.34 oz) (including batteries).
Below you can see the front view size comparison of Nikon L31 and Sony HX7V.
Here is the back view size comparison of Nikon L31 and Sony HX7V.
Now lets look at the top view comparison of Nikon L31 and Sony HX7V.
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 (48g ) than the Sony HX7V which may become a big advantage especially on long walking trips.
Unfortunately neither Nikon Coolpix L31 nor Sony Cyber-shot DSC-HX7V 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
Sony HX7V'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.