Sony A7 III weighs 650 g (1.43 lb / 22.93 oz)
and has external dimensions of 127 x 96 x 74 mm (5 x 3.78 x 2.91″)
. Considering that the average weight of Mirrorless type cameras is 456g, Sony A7 III is a significantly heavy camera for its class. With a thickness of 74mm, it is not small either, 21mm thicker than the average of its class.
Here is the front and top view image of Sony A7 III with the dimensions:
In order to give you a better idea about the real life size of Sony A7 III, we have added an image of how it looks next to a credit card and an AA type battery.
Now let's compare Sony A7 III size with the camera that it replaced: Sony A7 II. Sony A7 III has the same height and width with Sony A7 II. On the other hand, with a thickness of 74mm, it is 14mm thicker.
Below you can find the comparison of the weight and thickness of Sony A7 III with its main competitors:
Sony A7 III has environmental sealings on its body which makes it a weather resistant camera, providing resistance against the water and dust getting in to the camera. If you like outdoors photography and want to be able to use your camera in extreme conditions, Sony A7 III will serve you well. If you attach one of these Sony A7 III weather Sealed lenses to your camera, you will have a great all weather kit.