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 Casio EX-Z800 and Fujifilm X-A2 side-by-side from the front, back and top in their relative dimensions. Casio EX-Z800 has external dimensions of 91 x 52 x 20 mm (3.58 x 2.05 x 0.79″) and weighs 124 g (0.27 lb / 4.37 oz) (including batteries). Fujifilm X-A2 has external dimensions of 117 x 67 x 40 mm (4.61 x 2.64 x 1.57″) and weighs 350 g (0.77 lb / 12.35 oz) (including batteries).
Below you can see the front-view size comparison of the Casio EX-Z800 and the Fujifilm X-A2. Casio EX-Z800 is clearly the smaller of the two cameras. Its body is 26mm narrower, 15mm shorter and 20mm thinner than Fujifilm X-A2. As you can tell, actually this is not a fair size comparison since Casio EX-Z800 has a built-in lens but Fujifilm X-A2 doesn't. Once you put a lens on X-A2, its thickness will increase significantly.
Here is the back view size comparison of the Casio EX-Z800 and Fujifilm X-A2.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Casio EX-Z800 is significantly lighter (226g ) than the Fujifilm X-A2 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-A2, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the Casio Exilim EX-Z800 nor Fujifilm X-A2 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 Mirrorless Cameras with Weather Sealing
LCD Screen Size and Features
Fujifilm X-A2's 3.00" LCD screen is slightly larger than Casio EX-Z800's 2.7 screen.
In addition to the size advantage, Fujifilm X-A2 LCD screen also has a
Tilting feature where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels. On the other hand, Casio EX-Z800 has a fixed type screen which provides less flexibility in shooting positions compared to X-A2.