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 Fujifilm S9900w and FujiFilm S4000 side-by-side from the front, back and top in their relative dimensions. Fujifilm S9900w has external dimensions of 123 x 87 x 116 mm (4.84 x 3.43 x 4.57″) and weighs 670 g (1.48 lb / 23.63 oz) (including batteries). FujiFilm S4000 has external dimensions of 118 x 81 x 100 mm (4.65 x 3.19 x 3.94″) and weighs 540 g (1.19 lb / 19.05 oz) (including batteries).
Below you can see the front-view size comparison of the Fujifilm S9900w and the FujiFilm S4000. FujiFilm S4000 is clearly the smaller of the two cameras. Its body is 5mm narrower, 6mm shorter and 16mm thinner than Fujifilm S9900w.
Here is the back view size comparison of the Fujifilm S9900w and FujiFilm S4000.
Now lets look at the top view comparison of Fujifilm S9900w and FujiFilm S4000.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
FujiFilm S4000 is significantly lighter (130g ) than the Fujifilm S9900w which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Fujifilm S9900w nor FujiFilm FinePix S4000 (FinePix S4050) 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 Bridge Cameras with Weather Sealing
LCD Screen Size and Features
Fujifilm S9900w and FujiFilm S4000's LCD screens have the same diagonal size of 3.00 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.