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 Samsung Galaxy Camera 3G and Panasonic GX8 side-by-side from the front, back and top in their relative dimensions. Samsung Galaxy Camera 3G has external dimensions of 129 x 71 x 19 mm (5.08 x 2.8 x 0.75″) and weighs 305 g (0.67 lb / 10.76 oz) (including batteries). Panasonic GX8 has external dimensions of 133 x 78 x 63 mm (5.24 x 3.07 x 2.48″) and weighs 487 g (1.07 lb / 17.18 oz) (including batteries).
Below you can see the front-view size comparison of the Samsung Galaxy Camera 3G and the Panasonic GX8. Samsung Galaxy Camera 3G is clearly the smaller of the two cameras. Its body is 4mm narrower, 7mm shorter and 44mm thinner than Panasonic GX8. As you can tell, actually this is not a fair size comparison since Samsung Galaxy Camera 3G has a built-in lens but Panasonic GX8 doesn't. Once you put a lens on GX8, its thickness will increase significantly.
Now lets look at the top view comparison of Samsung Galaxy Camera 3G and Panasonic GX8.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Samsung Galaxy Camera 3G is significantly lighter (182g ) than the Panasonic GX8 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 GX8, the total kit will weigh much higher.
Weather Sealing
Thanks to the weather-sealed body of the GX8, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the Galaxy Camera 3G.
LCD Screen Size and Features
Samsung Galaxy Camera 3G's 4.80" LCD screen is slightly larger than Panasonic GX8's 3" screen.