Size and weight is a big decision factor when you are trying to find the ideal camera for your needs.
In this section, We are going to illustrate Sony A9 II and Sony A9 side-by-side from the front, back and top in their relative dimensions. Sony A9 II has external dimensions of 129 x 96 x 76 mm (5.08 x 3.78 x 2.99″) and weighs 678 g (1.49 lb / 23.92 oz) (including batteries). Sony A9 has external dimensions of 127 x 96 x 63 mm (5 x 3.78 x 2.48″) and weighs 673 g (1.48 lb / 23.74 oz) (including batteries).
Below you can see the front view size comparison of Sony A9 II and Sony A9. Sony A9 II has the same height with Sony A9. On the other hand, with a width of 129mm, it is 2 wider and also with a thickness of 76mm, it is 13mm thicker than Sony A9.
Here is the back view size comparison of Sony A9 II and Sony A9.
Now lets look at the top view comparison of Sony A9 II and Sony A9.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Sony A9 is 5g lighter than the Sony A9 II but we don't think this will make a significant difference.
Also keep in mind that body weight is not the only deciding factor when comparing two interchangeable camera bodies, you have to also take into account the lenses that you will be using with these bodies. Since both Sony A9 II and Sony A9 have the same Sony E lens mount and Full frame sized sensors, lenses will not be a differentiator on total size of the system.
Both A9 II and A9 have weather sealings in their body, making them resistant to water and dust.
LCD Screen Size and Features
Sony A9 II and Sony A9's LCD screens has the same diagonal size of 3".
Both cameras feature Tilting screens
where you can change the angle of the screen to make it easier to shoot from waist or over the head levels.