If you want to record a bike ride or some other adventure by yourself, you typically have to wear an action camera. Going that route is fine for a first-person view, but what if you want some more dramatic shots? That's where Hexoplus' crowdfunded Hexo+ camera drone comes into play. The robotic hexacopter captures aerial footage of your expeditions simply by detecting where you are (or rather, where your phone is) and following along -- you only have to set a preferred distance. It's fast (43MPH) and stabilized, too, so it should keep up even if you're racing across hilly terrain.
Source: Hexoplus, Kickstarter