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 XG-1 and Panasonic FZ80 side-by-side from the front, back and top in their relative dimensions. Pentax XG-1 has external dimensions of 119 x 89 x 98 mm (4.69 x 3.5 x 3.84″) and weighs 567 g (1.25 lb / 20.00 oz) (including batteries). Panasonic FZ80 has external dimensions of 130 x 94 x 119 mm (5.12 x 3.7 x 4.69″) and weighs 616 g (1.36 lb / 21.73 oz) (including batteries).
Below you can see the front-view size comparison of the Pentax XG-1 and the Panasonic FZ80. Pentax XG-1 is clearly the smaller of the two cameras. Its body is 11mm narrower, 5mm shorter and 21mm thinner than Panasonic FZ80.
Here is the back view size comparison of the Pentax XG-1 and Panasonic FZ80.
Now lets look at the top view comparison of Pentax XG-1 and Panasonic FZ80.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Pentax XG-1 is 49g lighter than the Panasonic FZ80 but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither the Pentax XG-1 nor Panasonic Lumix DMC-FZ80 (Lumix DMC-FZ82) 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 Bridge Cameras with Weather Sealing
LCD Screen Size and Features
Pentax XG-1 and Panasonic FZ80's LCD screens have the same diagonal size of 3.00 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.