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 Z900EXR and Canon 600D side-by-side from the front, back and top in their relative dimensions. Fujifilm Z900EXR has external dimensions of 101 x 59 x 18 mm (3.98 x 2.32 x 0.71″) and weighs 151 g (0.33 lb / 5.33 oz) (including batteries). Canon 600D has external dimensions of 133 x 100 x 80 mm (5.24 x 3.94 x 3.15″) and weighs 570 g (1.26 lb / 20.11 oz) (including batteries).
Below you can see the front-view size comparison of the Fujifilm Z900EXR and the Canon 600D. Fujifilm Z900EXR is clearly the smaller of the two cameras. Its body is 32mm narrower, 41mm shorter and 62mm thinner than Canon 600D. As you can tell, actually this is not a fair size comparison since Fujifilm Z900EXR has a built-in lens but Canon 600D doesn't. Once you put a lens on 600D, its thickness will increase significantly.
Here is the back view size comparison of the Fujifilm Z900EXR and Canon 600D.
Now lets look at the top view comparison of Fujifilm Z900EXR and Canon 600D.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Fujifilm Z900EXR is significantly lighter (419g ) than the Canon 600D 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 600D, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the Fujifilm FinePix Z900EXR nor Canon EOS 600D (EOS Rebel T3i / EOS Kiss X5) 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 Top DSLR Cameras with Weather Sealing
LCD Screen Size and Features
Fujifilm Z900EXR's 3.50" LCD screen is slightly larger than Canon 600D's 3" screen.