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 Kodak Astro AZ651 and Nikon D610 side-by-side from the front, back and top in their relative dimensions. Kodak Astro AZ651 has external dimensions of 125 x 114 x 89 mm and weighs 567 g (including batteries). Nikon D610 has external dimensions of 141 x 113 x 82 mm (5.55 x 4.45 x 3.23″) and weighs 850 g (1.87 lb / 29.98 oz) (including batteries).
Below you can see the front-view size comparison of the Kodak Astro AZ651 and the Nikon D610. Kodak Astro AZ651 is clearly the smaller of the two cameras. Its body is 141mm narrower, 113mm shorter and 82mm thinner than Nikon D610. As you can tell, actually this is not a fair size comparison since Kodak Astro AZ651 has a built-in lens but Nikon D610 doesn't. Once you put a lens on D610, its thickness will increase significantly.
Now lets look at the top view comparison of Kodak Astro AZ651 and Nikon D610.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Kodak Astro AZ651 is significantly lighter (283g ) than the Nikon D610 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 D610, the total kit will weigh much higher.
Weather Sealing
Thanks to the weather-sealed body of the D610, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the Astro AZ651.
LCD Screen Size and Features
Nikon D610's 3.20" LCD screen is slightly larger than Kodak Astro AZ651's 3 screen.
On the other hand, Kodak Astro AZ651 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, Nikon D610 has a fixed type screen which provides almost no flexibility in shooting positions compared to Astro AZ651.