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 S2800HD and Fujifilm X-E2 side-by-side from the front, back and top in their relative dimensions. FujiFilm S2800HD has external dimensions of 110 x 74 x 82 mm (4.33 x 2.91 x 3.23″) and weighs 437 g (0.96 lb / 15.41 oz) (including batteries). Fujifilm X-E2 has external dimensions of 129 x 75 x 37 mm (5.08 x 2.95 x 1.46″) and weighs 350 g (0.77 lb / 12.35 oz) (including batteries).
Below you can see the front-view size comparison of the FujiFilm S2800HD and the Fujifilm X-E2. FujiFilm S2800HD is 19mm narrower and 1mm shorter than Fujifilm X-E2 but it is also 45mm thicker. As you can tell, actually this is not a fair size comparison since FujiFilm S2800HD has a built-in lens but Fujifilm X-E2 doesn't. Once you put a lens on X-E2, its thickness will increase significantly.
Here is the back view size comparison of the FujiFilm S2800HD and Fujifilm X-E2.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Fujifilm X-E2 is significantly lighter (87g ) than the FujiFilm S2800HD which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on X-E2, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the FujiFilm FinePix S2800HD (FinePix S2900HD) nor Fujifilm X-E2 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 Top Mirrorless Cameras with Weather Sealing
LCD Screen Size and Features
FujiFilm S2800HD and Fujifilm X-E2'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.