 Alphabet Incs Google has offered not to use health data of fitness tracker company Fitbit to help it target ads in an attempt to address EU antitrust concerns about its proposed 2.1 billion acquisition, the U.S. tech company said late on Monday. The bid, announced in November last year, would help Google take on market leader Apple and Samsung in the fitness-tracking and smart-watch market, alongside others including Huawei and Xiaomi. 