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 A7S II and Sony A7S III side-by-side from the front, back and top in their relative dimensions. Sony A7S II has external dimensions of 127 x 96 x 60 mm (5 x 3.78 x 2.36″) and weighs 627 g (1.38 lb / 22.12 oz) (including batteries). Sony A7S III has external dimensions of 129 x 97 x 81 mm (5.08 x 3.82 x 3.19″) and weighs 699 g (1.54 lb / 24.66 oz) (including batteries).
Below you can see the front view size comparison of Sony A7S II and Sony A7S III. Sony A7S II is clearly the smaller of the two cameras. Its body is 2mm narrower, 1mm shorter and 21mm thinner than Sony A7S III.
![Sony A7S II vs Sony A7S III Camera Size Comparison - Front View]()
Comparison image of Sony A7S II and Sony A7S III Size, Weight and External Dimensions - Front View
Here is the back view size comparison of Sony A7S II and Sony A7S III.
![Sony A7S II vs Sony A7S III Camera Size Comparison - Back View]()
Comparison image of Sony A7S II and Sony A7S III Size and Weight - Back View
Now lets look at the top view comparison of Sony A7S II and Sony A7S III.
![Sony A7S II vs Sony A7S III Camera Size Comparison - Top View]()
Top View Comparison image of Sony A7S II and Sony A7S III Size
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Sony A7S II is 72g lighter than the Sony A7S III 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 A7S II and Sony A7S III have the same Sony E (NEX) lens mount and Full frame sized sensors, lenses will not be a differentiator on total size of the system.
Weather Sealing
Both A7S II and A7S III have weather sealings in their body, making them resistant to water and dust.
LCD Screen Size and Features
Sony A7S II and Sony A7S III's LCD screens has the same diagonal size of 3.