It's only a concept for now, but this could be the ultimate camera for lifeloggers.
The Samsung AMe (short for "Around Me") is a 360-degree camera that is design to be worn as a necklace, so that it can capture video from "your" point of view. Unlike other 360-dagree cameras, the AMe is comprised of three separate cameras. The images from the cameras are stitched together via an app. The resulting 360 video has 4k resolution.
Its designers say that the unobtrusive appearance will allow for more candid images.
Here is the official site.