Google's acquisition of Fitbit appears designed to gather more personal data By MICHAEL LIEDTKE article SAN RAMON, Calif. - Google has completed its $2.1 billion acquisition of fitness-gadget maker Fitbit, a deal that could help the internet company grow even stronger while U.S. government regulators pursue an antitrust case aimed at undermining its power. Thursday's completion of the acquisition comes 14 months after Google announced a deal that immediately raised alarms. Google makes most of its money by selling ads based on information it collects about its billions of users’ interests and whereabouts. Privacy watchdogs feared it might exploit Fitbit to peer even deeper into people's lives.