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 Pentax W80 and Panasonic G3 side-by-side from the front, back and top in their relative dimensions. Pentax W80 has external dimensions of 100 x 56 x 25 mm (3.94 x 2.2 x 0.98″) and weighs 156 g (0.34 lb / 5.50 oz) (including batteries). Panasonic G3 has external dimensions of 115 x 84 x 47 mm (4.53 x 3.31 x 1.85″) and weighs 336 g (0.74 lb / 11.85 oz) (including batteries).
Below you can see the front-view size comparison of the Pentax W80 and the Panasonic G3. Pentax W80 is clearly the smaller of the two cameras. Its body is 15mm narrower, 28mm shorter and 22mm thinner than Panasonic G3. As you can tell, actually this is not a fair size comparison since Pentax W80 has a built-in lens but Panasonic G3 doesn't. Once you put a lens on G3, its thickness will increase significantly.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Pentax W80 is significantly lighter (180g ) than the Panasonic G3 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 G3, the total kit will weigh much higher.
Weather Sealing
With its weather-sealed body, we believe that the W80 has a big advantage over the G3 which doesn't provide any kind of environmental sealing.
LCD Screen Size and Features
Panasonic G3's 3.00" LCD screen is slightly larger than Pentax W80's 2.5" screen.
Moreover, Panasonic G3 sports a
Fully Articulated screen which you can change the angle and position of the screen almost freely, making it possible to shoot from waist or over-the-head levels, and especially very useful for shooting selfies and video. On the other hand, Pentax W80 has a fixed type screen which provides almost no flexibility in shooting positions compared to G3.