The company is trying to win the EU's approval to purchase the wearable company.
Amid European Union antitrust concerns, Google has pledged not to use Fitbit health data, as it tries to secure approval to acquire the wearable company.
"This deal is about devices, not data," a Google spokesperson told CNET via email. "We appreciate the opportunity to work with the European Commission on an approach that safeguards consumers' expectations that Fitbit device data won't be used for advertising." The pledge was previously reported by Reuters.
Last year, Google announced a $2.1 billion deal to acquire Fitbit, in an attempt to bolster its business in wearable technology, like smartwatches and other devices. Earlier this month, a group of 20 consumer organizations sent letters to antitrust regulators around the globe, including in the US, EU and Canada.
The European Competition Commission has since begun investigating Google's deal with Fitbit. The decision date for EU regulators has been pushed from July 20 to Aug. 4, following Google's data pledge.