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 Nikon D300 and Samsung ST65 side-by-side from the front, back and top in their relative dimensions. Nikon D300 has external dimensions of 147 x 114 x 74 mm (5.79 x 4.49 x 2.91″) and weighs 925 g (2.04 lb / 32.63 oz) (including batteries). Samsung ST65 has external dimensions of 92 x 53 x 17 mm (3.62 x 2.09 x 0.67″) and weighs (including batteries).
Below you can see the front-view size comparison of the Nikon D300 and the Samsung ST65. Samsung ST65 is clearly the smaller of the two cameras. Its body is 55mm narrower, 61mm shorter and 57mm thinner than Nikon D300. As you can tell, actually this is not a fair size comparison since Samsung ST65 has a built-in lens but Nikon D300 doesn't. Once you put a lens on D300, its thickness will increase significantly.
Here is the back view size comparison of the Nikon D300 and Samsung ST65.
Now lets look at the top view comparison of Nikon D300 and Samsung ST65.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Samsung ST65 is 925g lighter than the Nikon D300 but we don't think this will make a significant difference.
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 D300, the total kit will weigh much higher.
Weather Sealing
With its weather-sealed body, we believe that the D300 has a big advantage over the ST65 which doesn't provide any kind of environmental sealing.
LCD Screen Size and Features
Nikon D300 and Samsung ST65'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.