Amazon ships more U.S. smart home devices than any other company and says Alexa is now compatible with 140,000 devices, far beyond the Echo and Fire TV. But privacy advocates are concerned by all the data these devices collect, and are calling on the Federal Trade Commission to block Amazon’s latest smart home expansion. After acquiring video doorbell maker Ring in 2018 and mesh WiFi system Eero a year later, Amazon’s now looking to buy Roomba smart vacuum maker iRobot. In a rare move, the FTC is asking for more information before approving the $1.7 billion deal. Ahead of Amazon’s annual smart home event, we talked to Amazon’s VP of privacy to find out what really happens to all the data collected by its devices - and sat down with the head of smart home to hear the strategy behind Amazon’s race to dominate the internet of things. Chapters: 1:41 First to market 4:27 Acquiring iRobot 7:41 How it uses the data 9:45 Privacy concerns 11:33 Ambient home of the future » Subscribe to CNBC: https://cnb.cx/SubscribeCNBC » Subscribe to CNBC TV: https://cnb.cx/SubscribeCNBCtelevision About CNBC: From 'Wall Street' to 'Main Street' to award winning original documentaries and Reality TV series, CNBC has you covered. Experience special sneak peeks of your favorite shows, exclusive video and more. Connect with CNBC News Online Get the latest news: https://www.cnbc.com/ Follow CNBC on LinkedIn: https://cnb.cx/LinkedInCNBC Follow CNBC News on Facebook: https://cnb.cx/LikeCNBC Follow CNBC News on Twitter: https://cnb.cx/FollowCNBC Follow CNBC News on Instagram: https://cnb.cx/InstagramCNBC #CNBC How Amazon Dominates Smart Home And Why It Wants To Buy iRobot