Sony's RX0 line is the company's take on the compact camera. Its latest version, the RX0 II, crams 4K recording, advanced image processing and electronic stabilization into "the world's smallest and lightest premium compact camera". This device is also fit for outdoorsy videography, with water, dust and shock resistance.
https://www.notebookcheck.net/Sony-introduces-the-RX0-II-a-2nd-generation-GoPro-like-4K-camera-with-an-adjustable-LCD-screen.415271.0.html
...I suddenly realize it's strange that notebookcheck reports on a camera.