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 S3 Pro and Olympus FE-45 side-by-side from the front, back and top in their relative dimensions. Fujifilm S3 Pro has external dimensions of 148 x 135 x 80 mm (5.83 x 5.31 x 3.15″) and weighs 930 g (2.05 lb / 32.80 oz) (including batteries). Olympus FE-45 has external dimensions of 94 x 62 x 23 mm (3.7 x 2.44 x 0.91″) and weighs 142 g (0.31 lb / 5.01 oz) (including batteries).
Below you can see the front-view size comparison of the Fujifilm S3 Pro and the Olympus FE-45. Olympus FE-45 is clearly the smaller of the two cameras. Its body is 54mm narrower, 73mm shorter and 57mm thinner than Fujifilm S3 Pro. As you can tell, actually this is not a fair size comparison since Olympus FE-45 has a built-in lens but Fujifilm S3 Pro doesn't. Once you put a lens on S3 Pro, its thickness will increase significantly.
Here is the back view size comparison of the Fujifilm S3 Pro and Olympus FE-45.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Olympus FE-45 is significantly lighter (788g ) than the Fujifilm S3 Pro 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 S3 Pro, the total kit will weigh much higher.
Weather Sealing
With its weather-sealed body, we believe that the S3 Pro has a big advantage over the FE-45 which doesn't provide any kind of environmental sealing.
LCD Screen Size and Features
Olympus FE-45's 2.50" LCD screen is slightly larger than Fujifilm S3 Pro's 2" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.