The review missed one item that is worth highlighting:
– The RX100 III had three modes for LCD monitor (screen) brightness: manual, auto, and sunlight. The RX100 IV only has manual and sunlight; the auto mode is not available in the menu. I do not know if this is intentional or done for some particular reason. I’m not sure if the IV has an LCD screen light sensor as the III has?
I have owned the RX100 IV for a little over a week now and found toggling between manual setting for indoor use and sunlight setting for outdoors to be cumbersome, as I needed to dig deep into the menus. My work-around was to program the custom key for this, which is not the ideal solution.
If Sony can ‘fix’ this problem, it would be appreciated. Firmware update perhaps?
Other than this one ‘bug’ I have found the camera to be great, a real gem. For example, it is so good at low light that I do not need the flash; I only use the flash as a fill in direct sunlight to lighten shadows!

Started out doing photography at the age of 6 using an uncle's old 1940 kodak brownie box camera. At 15 years of age, I decided to buy my very own 1975 Praktica SLR camera. I now shoot with a Nikon D850. I do unpaid TFP and commercial paid work.