Engadget reviewed the A7rV and concluded:
Sony is once again on top of the high-resolution full-frame camera market with $3,900 A7R V. Image quality and detail are outstanding, autofocus is second to none and the updated video capabilities are a great addition for hybrid shooters.
As mentioned, Sony’s main rival is the 45-megapixel Canon EOS R5, which offers lower resolution and better video capabilities, but suffers from overheating issues. The 45-megapixel Nikon Z9 is also a more capable video camera, but costs $1,500 more, and Nikon’s $3,000, 45-megapixel Z7 II is $500 less but has inferior autofocus and video.
None of those models come close to matching the A7R V’s resolution, image quality and exceptional AF, though. Given that, plus the massive video improvements, it’s now the best high-resolution full-frame camera on the market, by far.
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.