Sony’s Alpha series has long been a favorite among photographers and videographers, with the Sony A7 III cementing itself as a classic since its release in 2018. Dubbed the "basic model," it redefined expectations for a full-frame mirrorless camera at its price point. Enter the Sony A7 IV, released in late 2021, with significant upgrades and enhancements. But does the A7 IV offer enough to justify an upgrade from its predecessor?

In this detailed comparison, we’ll explore the differences between the Sony A7 IV and A7 III across critical aspects such as sensor performance, autofocus, video capabilities, and more. Whether you're a current A7 III owner or deciding which model to buy, this guide will help you make an informed choice.