[1] It was publicly announced on July 28, 2020 (2020-07-28) online with a suggested retail price of US$3,495 (body only) at the time.

For still images or movies on auto setting, the camera's ISO is 100–12800 with selectable lower and upper limits.

[5] The cameras native ISO is 12800 for photos and non s-log video The α7S III's shutter speed range is 30 s to 1/8,000 s for still images.

[9] The camera can record 4K UHD (QFHD: 3840 x 2160) internally in full frame format at 120 FPS.

The camera allows for movie image size to be set, as well as the frame rate per second, and compression method.