Fitbit to Schumer: We don't sell personal data

The maker of a popular line of wearable fitness-tracking devices says it has never sold personal data to advertisers, contrary to concerns raised by U.S. Sen. Charles Schumer.

San Francisco-based Fitbit said Friday that it has clarified its privacy policy to make it clear the company doesn't share information about its users.

Schumer raised concerns about the company's privacy policy earlier this month and called for federal rules to allow consumers to protect their data.

But the company said Friday that it's never sold private data and updated its online privacy policy to make that clear.

Schumer said Friday he hopes other manufacturers of wearable devices adopt similarly transparent rules.

Many Americans wear fitness bracelets and monitors or use mobile apps to monitor their activity.