Last year, Google gave us a taste of Project Soli , an effort to deliver radar-powered finger gesture control to wearables. Today, we got a closer look at how it could be implemented in real products, starting with a customized LG Urbane smartwatch. Google reps were able to control the watch simply by holding their fingers in front of it. As they moved closer, even more options opened up. As they moved away, the standard watch face returned. It's just a demo right now, but Soli could solve the problem of controlling smart devices with tiny screens (or with no screens at all).