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 FujiFilm S2800HD and Olympus E-M1 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). Olympus E-M1 has external dimensions of 130 x 94 x 63 mm (5.13 x 3.68 x 2.48″) and weighs 497 g (1.10 lb / 17.53 oz) (including batteries).
Below you can see the front view size comparison of FujiFilm S2800HD and Olympus E-M1. FujiFilm S2800HD is 20mm narrower and 20mm shorter than Olympus E-M1 but it is also 19mm thicker. As you can tell, actually this is not a fair size comparison since FujiFilm S2800HD has a built-in lens but Olympus E-M1 doesn't. Once you put a lens on E-M1, its thickness will increase significantly.
Here is the back view size comparison of FujiFilm S2800HD and Olympus E-M1.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
FujiFilm S2800HD is 60g lighter than the Olympus E-M1 but we don't think this will make a significant difference.
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 E-M1, the total kit will weigh much higher.
Thanks to the weather sealed body of E-M1, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to S2800HD.
LCD Screen Size and Features
FujiFilm S2800HD and Olympus E-M1's LCD screens has the same diagonal size of 3".
On the other hand, Olympus E-M1 features a Tilting screen
where you can change the angle of the screen to make it easier to shoot from waist or over the head levels whereas the FujiFilm S2800HD has a fixed type screen which provides less flexibility in shooting positions compared to E-M1.