Rounding up the top "Compact Enthusiast Zoom Cameras", DPReview.com ranks the RX100 IV as the overall category winner and the best for video.
"While still image quality remains largely unchanged compared to its predecessor, the Cyber-shot RX100 IV has added a brand new stacked sensor that allows for ultra-slow-motion video, internal 4K video recording, and high speed burst shooting. It includes a very detailed EVF, a pop-up bounce-able flash, a sharp bright lens, and excellent image stabilization, particularly in video."
The review continues, "[T]he RX100 IV is an incredibly versatile tool, and yet, it still fits in a pocket." -DPReview.com