AirDog's ADII 'follow me' drone doubles down on action sports

In 2015, the big innovation in drones was "follow-me" mode. It wasn't new, but the technology was finally good enough for it to become a leading feature in quadcopters. A few did just that, most notably AirDog, Lily, 3DR, DJI and Hexo . In 2017, Lily is bust, 3DR had to pivot to enterprise and Hexo has been "out of stock" on its website for months. DJI was already the biggest player in the game back then.