dpreview compared the Eye AF feature on Sony a7R III and Nikon Z7 at the CP+ show 2019. It seems Sony a7R III‘s eye AF is more accurate than Nikon Z7, and a7R III can detect eyes from further away. Read More »
Tony Northrup has just published a full comparison video of Sony a9, a7R III, a7 III, Canon EOS R, Nikon Z7, Fujifilm X-T3 for sports photography. According to Tony, for the full frame mirrorless cameras, a9, a7R III, a7 III are better than Canon EOS R and Nikon Z7 for sports photography.
Tomorrow, Nikon will officially announce the new Nikon Z6, Nikon Z7 full frame mirrorless cameras to compete current Sony a7 III and a7R III. Here is the specs comparison of Sony a7 III & a7R III Vs. Nikon Z6 & Z7: