Google LLC’s acquisition of smart watch maker Fitbit Inc. for $2.1 billion Nov. 1 has not been received well by all FitBit fans, as some claim to be ditching their devices over data privacy concerns.

For a story published today, CNBC interviewed several Fitbit users who are claiming to have abandoned their Fitbit devices in favor of those from other companies they trust more with their data, such as Apple Inc. with its Apple Watch.

Google did make explicit assurances at the time of its Fitbit acquisition that it wouldn’t sell personal of health data, but some users are skeptical.

“I’m not only afraid of what they can do with the data currently, but what they can do with it once their AI advances in 10 or 20 years,” one user told CNBC, saying he didn’t believe the company’s privacy assurances. “Health insurance companies would love to get their hands on that data and their purposes wouldn’t be advertising so is that what they are going to do with it? They didn’t spend the money to not utilize it in some way.”

The CNBC report was not alone in picking up a trend among some users considering abandoning their Fitbit devices over data privacy concerns. The Daily Mail reported Nov. 8 a similar trend, though it primarily referenced claims made by Fitbit users on Twitter.

Dear @fitbit,

I do not want my data that I consented to you collecting transferring to Google. With news of the acquisition of your company I intend to sell my fitbit & delete my account.

How do I ensure that none of the data I allowed you to collect ends up in their hands?

— Tanya Janca (@shehackspurple) November 4, 2019

Throwing out perfectly good devices over data privacy concerns for those from companies like Apple, which also gathers and tracks data, may seem extreme. But there may be some legitimate concerns despite Google’s promise to behave itself with the data of Fitbit users.

A report Nov. 11 exposed “Project Nightingale,” a secret Google program whereby the company collected health data of millions of U.S. citizens in a partnership with a St. Louis-based chain of hospitals called Ascension.

Google also has a long track record of privacy-related scandals and fines. The search giant was fined $170 million for breaching the privacy of children in YouTube in September and was fined $57 million for breaching EU data privacy laws in January. In between times, data recorded from Google Assistant was leaked to a Belgian outlet in July, while the company even got into a privacy dispute with Apple.

Whether Google is that much different to other companies in the space, however, is somewhat questionable. Various companies have faced data privacy issues in the past, with the notable exception of Apple.

Chief Executive Officer Tim Cook has railed against what he calls the “data-industrial complex,” and Apple has pitched itself as a “privacy provider” that doesn’t share data it collects and doesn’t sell ads against it. Apple is not perfect, but for Fitbit users it does offer a credible alternative.

Image: Fitbit