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-S200 and Pentax Q10 side-by-side from the front, back and top in their relative dimensions. Casio EX-S200 has external dimensions of 100 x 55 x 18 mm (3.94 x 2.17 x 0.71″) and weighs 132 g (0.29 lb / 4.66 oz) (including batteries). Pentax Q10 has external dimensions of 102 x 58 x 34 mm (4.02 x 2.28 x 1.34″) and weighs 200 g (0.44 lb / 7.05 oz) (including batteries).
Below you can see the front-view size comparison of the Casio EX-S200 and the Pentax Q10. Casio EX-S200 is clearly the smaller of the two cameras. Its body is 2mm narrower, 3mm shorter and 16mm thinner than Pentax Q10. As you can tell, actually this is not a fair size comparison since Casio EX-S200 has a built-in lens but Pentax Q10 doesn't. Once you put a lens on Q10, its thickness will increase significantly.
Comparison image of the Casio EX-S200 and the Pentax Q10 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of the Casio EX-S200 and Pentax Q10.
Comparison image of the Casio EX-S200 and the Pentax Q10 Size and Weight - Back View
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Casio EX-S200 is significantly lighter (68g ) than the Pentax Q10 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 Q10, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the Casio Exilim EX-S200 nor Pentax Q10 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
Pentax Q10's 3.00" LCD screen is slightly larger than Casio EX-S200's 2.7 screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.
