Here is a quick specs comparison of new announced Sony a7R III (Amazon/B&H Photo Video/Adorama) and Sony a9 (Amazon/B&H Photo/Adorama). The price for Sony a7R III is $3,198.00, will be shipping in late November, 2017. See also: Sony a7R II Vs. a7R III, a7R III Vs. D850 Vs. 5D Mark IV.
via: dpreview