Spot the difference! Why has Sony launched two new cameras that seem virtually identical to their predecessors?

Bridge cameras offer zoom that smartphones and even some mirrorless can't reach, so why are there so few of them?

A premium all rounder bridge camera that will cover any shooting scenario, but it costs as much as an APS-C camera body. The Sony RX10 IV is one of the most powerful bridge cameras ever made.

Why? Because bridge cameras have largely been ignored the past few years. While there are plenty of super zoom cameras still available, most of them are starting to show their age. The Sony RX10 ...