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 Panasonic FX48 and Casio EX-ZS15 side-by-side from the front, back and top in their relative dimensions. Panasonic FX48 has external dimensions of 95 x 53 x 22 mm (3.74 x 2.09 x 0.87″) and weighs 150 g (0.33 lb / 5.29 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 Panasonic FX48 and Casio EX-ZS15. Panasonic FX48 is 8mm narrower and 6mm shorter than Casio EX-ZS15 but it is also 2mm thicker.
Here is the back view size comparison of Panasonic FX48 and Casio EX-ZS15.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Panasonic FX48 is 4g lighter than the Casio EX-ZS15 but we don't think this will make a significant difference.
Unfortunately neither Panasonic Lumix DMC-FX48 (Lumix DMC-FX40) nor Casio Exilim EX-ZS15 provides any type of weather sealing in their body, 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
Panasonic FX48's 2.5" 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.