Google controls a smartwatch with radar-powered finger gestures

"We've developed a vision where the hand is the only controller you need," said Ivan Poupyrev, a technical program lead at Google's Advanced Technology and Projects (ATAP) group. Basically, Google is trying to create a whole new gesture language for every device in your home. After rolling out a Project Soli alpha developer kit last year, Google selected 60 developers from a pool of 180 applicants to show off how their implementations. One group used Soli to used it to identify materials like copper, while another used it for 3D imaging. The coolest experiment, though, was using it as an in-car remote control. Imagine using gesture controls in your car by just having to raise your fingers from the steering wheel a bit.