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 S6100 and Pentax RS1500 side-by-side from the front, back and top in their relative dimensions. Nikon S6100 has external dimensions of 98 x 58 x 27 mm (3.86 x 2.28 x 1.06″) and weighs 175 g (0.39 lb / 6.17 oz) (including batteries). Pentax RS1500 has external dimensions of 114 x 58 x 28 mm (4.49 x 2.28 x 1.1″) and weighs 157 g (0.35 lb / 5.54 oz) (including batteries).
Below you can see the front-view size comparison of the Nikon S6100 and the Pentax RS1500. Nikon S6100 is 16mm narrower and 1mm thinner than Nikon S6100 but they have the same height of 58mm.
Here is the back view size comparison of the Nikon S6100 and Pentax RS1500.
Now lets look at the top view comparison of Nikon S6100 and Pentax RS1500.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Pentax RS1500 is 18g lighter than the Nikon S6100 but we don't think this will make a significant difference.
Weather Sealing
Thanks to the weather-sealed body of the RS1500, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the S6100.
LCD Screen Size and Features
Nikon S6100's 3.00" LCD screen is slightly larger than Pentax RS1500's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.