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 Panasonic FH20 and Nikon S3000 side-by-side from the front, back and top in their relative dimensions. Panasonic FH20 has external dimensions of 100 x 56 x 28 mm (3.94 x 2.2 x 1.1″) and weighs 178 g (0.39 lb / 6.28 oz) (including batteries). Nikon S3000 has external dimensions of 94 x 56 x 19 mm (3.7 x 2.2 x 0.75″) and weighs 116 g (0.26 lb / 4.09 oz) (including batteries).
Below you can see the front-view size comparison of the Panasonic FH20 and the Nikon S3000. Panasonic FH20 has the same height with Nikon S3000. On the other hand, with a width of 100mm, it is 6 wider and also with a thickness of 28mm, it is 9mm thicker than Nikon S3000.
Comparison image of the Panasonic FH20 and the Nikon S3000 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of the Panasonic FH20 and Nikon S3000.
Comparison image of the Panasonic FH20 and the Nikon S3000 Size and Weight - Back View
Now lets look at the top view comparison of Panasonic FH20 and Nikon S3000.
Top View Comparison image of the Panasonic FH20 and the Nikon S3000 Size
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon S3000 is significantly lighter (62g ) than the Panasonic FH20 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Panasonic Lumix DMC-FH20 (Lumix DMC-FS30) nor Nikon Coolpix S3000 provides any type of weather sealing in their bodies, 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
Panasonic FH20 and Nikon S3000's LCD screens have the same diagonal size of 2.70 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.