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-2 GPS and Panasonic ZS40 side-by-side from the front, back and top in their relative dimensions. Pentax WG-2 GPS has external dimensions of 122 x 61 x 30 mm (4.8 x 2.4 x 1.18″) and weighs 198 g (0.44 lb / 6.98 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-2 GPS and Panasonic ZS40. Pentax WG-2 GPS is 3mm shorter and 4mm thinner than Panasonic ZS40 but it is also 11mm wider.
Here is the back view size comparison of Pentax WG-2 GPS and Panasonic ZS40.
Now lets look at the top view comparison of Pentax WG-2 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-2 GPS is significantly lighter (42g ) than the Panasonic ZS40 which may become a big advantage especially on long walking trips.
LCD Screen Size and Features
Pentax WG-2 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.