Sony A7 IV vs A7 III - Head-to-head Comparison

The Sony A7 IV is the successor to the popular A7 III full-frame mirrorless camera, with both models offering lots of features to appeal to hybrid stills and video shooters. How does the new version compare to the old? We take a closer look in our detailed head-to-head comparison of the Sony A7 IV versus the Sony A7 III.