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 L120 and Nikon L820 side-by-side from the front, back and top in their relative dimensions. Nikon L120 has external dimensions of 110 x 77 x 78 mm (4.33 x 3.03 x 3.07″) and weighs 431 g (0.95 lb / 15.20 oz) (including batteries). Nikon L820 has external dimensions of 111 x 76 x 85 mm (4.37 x 2.99 x 3.35″) and weighs 470 g (1.04 lb / 16.58 oz) (including batteries).
Below you can see the front view size comparison of Nikon L120 and Nikon L820. Nikon L120 is 1mm narrower and 7mm thinner than Nikon L820 but it is also 1mm taller.
Here is the back view size comparison of Nikon L120 and Nikon L820.
Now lets look at the top view comparison of Nikon L120 and Nikon L820.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Nikon L120 is 39g lighter than the Nikon L820 but we don't think this will make a significant difference.
Unfortunately neither Nikon Coolpix L120 nor Nikon Coolpix L820 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 Top Bridge Cameras with Weather Sealing
LCD Screen Size and Features
Nikon L120 and Nikon L820'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.