This is cool: Size comparison between the first generation A7r and the new A7rV

Sony A7rV store links:
In US at BHphoto, Amazon, Adorama, FocusCamera, BeachCamera, Buydig.
In EU at Fotokoch, Amazon EU, FotoErhardt, Calumet DE, WexUK. ParkCameras UK.
In Australia at CameraPro, Camerahouse, Sony.

The Japanese website Champcamera compared the very first A7r (announced in late 2013) and the brand new A7rV. Five generation of cameras after the “r” series really did grow a lot in size.

David Schloss: “should you buy the a7R5 now?”

Sony A7rV Preorders:
In US at BHphoto, Amazon, Adorama, FocusCamera, BeachCamera, Buydig.
In EU at Fotokoch, Amazon EU, FotoErhardt, Calumet DE, WexUK. ParkCameras UK.
In Australia at CameraPro, Camerahouse, Sony.

David Schloss reviewed the Sony A7rV and his conclusion in short:

Buy the Sony A1 if you need 10fps or faster, buy the Sony a7rv if your current camera is dying or you need a camera today, no one should buy an a9, and everyone else should wait.