The Sony RX10 Mark IV is a very capable camera and it improves on the Mark III in almost every way. For most photographers, the ability to track moving subjects accurately will probably be the most useful, but the ability to shoot 24fps is also very useful when trying to capture the right moment. When the Sony RX10 Mark IV ships later this month we should see a lot more reviews, but until then Gordan Laing’s review above is probably the best around, but make sure you have plenty of time to watch it all.
fstoppers – First Hands-On Impressions
cameralabs – Sony RX10 Mark IV review
imaging-resource – Sony RX10 Mark IV First Shots
ephotozine – Sample Photos
dpreview – Sample Gallery