I'm disappointed too and am returning my A7R IV for exchange. The camera does not focus properly. Misses over 80% of shots. Regardless of ISO, shutter speed, aperture, lens, eye tracking, spot focus, tripod, etc., the camera misses almost every shot. Although the autofocus is much slower, my Sony A7R works better. UPDATE: Changed to 3 stars: I received a replacement A7R IV and the focus problems are gone. There is a real problem with this model that is not focused on a few units. Check dpreview or other forums. If you have problems with your device, replace it!
Revamped Sony Alpha a6000 Mirrorless Digital Camera: 24.3MP SLR Camera with 3.0-Inch LCD and Power Zoom Lens
103 Review
Discontinued Canon EOS 7D Digital SLR ๐ท Camera Body Only with 18 MP CMOS Sensor
88 Review
Canon EOS 60D: 18MP CMOS Digital SLR Camera Body - Your Next Photography Companion
125 Review
Nikon D3100 DSLR Camera with Auto Focus-S Nikkor Zoom Lens (Discontinued by Manufacturer)
109 Review