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 Casio EX-ZS15 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). Casio EX-ZS15 has external dimensions of 103 x 59 x 20 mm (4.06 x 2.32 x 0.79″) and weighs 154 g (including batteries).
Below you can see the front-view size comparison of the Casio EX-Z800 and the Casio EX-ZS15.
Here is the back view size comparison of the Casio EX-Z800 and Casio EX-ZS15.
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 (30g ) than the Casio EX-ZS15 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Casio Exilim EX-Z800 nor Casio Exilim EX-ZS15 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
LCD Screen Size and Features
Casio EX-Z800's 2.70" LCD screen is slightly larger than Casio EX-ZS15's screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.