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 Sony RX100 VI and Sony A7 side-by-side from the front, back and top in their relative dimensions. Sony RX100 VI has external dimensions of 102 x 58 x 43 mm (4.02 x 2.28 x 1.69″) and weighs 301 g (0.66 lb / 10.62 oz) (including batteries). Sony A7 has external dimensions of 127 x 94 x 48 mm (5 x 3.7 x 1.89″) and weighs 474 g (1.04 lb / 16.72 oz) (including batteries).
Below you can see the front-view size comparison of the Sony RX100 VI and the Sony A7. Sony RX100 VI is clearly the smaller of the two cameras. Its body is 25mm narrower, 36mm shorter and 5mm thinner than Sony A7. As you can tell, actually this is not a fair size comparison since Sony RX100 VI has a built-in lens but Sony A7 doesn't. Once you put a lens on A7, its thickness will increase significantly.
Here is the back view size comparison of the Sony RX100 VI and Sony A7.
Now lets look at the top view comparison of Sony RX100 VI and Sony A7.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony RX100 VI is significantly lighter (173g ) than the Sony A7 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 A7, the total kit will weigh much higher.
Weather Sealing
Thanks to the weather-sealed body of the A7, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the RX100 VI.
LCD Screen Size and Features
Sony RX100 VI and Sony A7's LCD screens have the same diagonal size of 3.00 inches.
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.