Companion devices are gaining popularity as more options become available for consumers. What’s a companion device? It could be a ring,watch, or bracelet that provides notifications or interaction with a connected mobile device. With the way smartphones are gradually getting larger, it can be convenient to know what’s going on without having to pull your smartphone out each time. Ritot is one of the latest gadgets that wants to take space on your wrist, but with a fresh twist. Unlike other products which simply flash a light or buzz some movement, Ritot uses the back of your hand as a display. By default, a gentle shake of your wrist makes the device project the current time, digitally. Since the light doesn’t have to travel far, the wee little pico projector is perfect for the job. And once you pair your smartphone with Ritot, you can run the accompanying app to add more functionality.