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 Pentax WG-3 GPS and Panasonic ZS40 side-by-side from the front, back and top in their relative dimensions. Pentax WG-3 GPS has external dimensions of 125 x 64 x 33 mm (4.9 x 2.5 x 1.3″) and weighs 238 g (0.52 lb / 8.40 oz) (including batteries). Panasonic ZS40 has external dimensions of 111 x 64 x 34 mm (4.37 x 2.52 x 1.34″) and weighs 240 g (0.53 lb / 8.47 oz) (including batteries).
Below you can see the front view size comparison of Pentax WG-3 GPS and Panasonic ZS40.
Here is the back view size comparison of Pentax WG-3 GPS and Panasonic ZS40.
Now lets look at the top view comparison of Pentax WG-3 GPS and Panasonic ZS40.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Pentax WG-3 GPS is 2g lighter than the Panasonic ZS40 but we don't think this will make a significant difference.
LCD Screen Size and Features
Pentax WG-3 GPS and Panasonic ZS40's LCD screens has the same diagonal size of 3.00".
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.