Reasons to upgrade!
One:Improved autofocus with new modes, including bird’s eye detection.
Two:Increased resolution from 24MP to 33MP without loss of high ISO capability.
Tthree:Improved ergonomics. Same body shape and size as A7SIII, A7RIV, etc.
Four:CF Express Type A slot enables faster buffer clearing and longer burst shooting.
Five:New file modes including HEIF and 4K 60p.
Six:The colors are closer to the new cameras like the A7SIII and A1.
Seven:It includes a new easier webcam mode to use as a streaming camera.
Eight:Front screen for vloggers.
Nine:S-Cinetone and focus breath compensation for video shooters.
Ten:New Menu, Sensor, LCD and EVF.
Ten.5:Very convenient native ISO duel of 3,200.
One:It costs $500 more than its predecessor, the A7III, possibly more depending on sales.
Two:The image quality of the two cameras is very similar, especially for still images.
Three:Only one card slot supports CF Express Type A.
Four:Minimal resolution increase in practice. See the chart below.
Please check back as these lists may be subject to change or update as you learn more about this new camera.