The next time you Google “how to be healthy amid cookie craving season,” Fitbit may be the first result. Google has confirmed that it is buying the company that makes watches that guilt you into taking the stairs—in a move to compete with the Apple Watch—for $2.1 billion. In cold, hard, cash.

Soo NOW the question is how the companies will use your data?

Google will boost its hardware and will also get a lot more scrutiny over the data Fitbit users have shared in the past. Things like private health information, and data that Fitbit would hand over to Google.

Earlier this year, Fitbit lowered the price on some of its devices and launched a new subscription offering called Fitbit Premium, which provides more in-depth insights about sleep, fitness and overall health. In July, Fitbit slashed its outlook for the full year following disappointing sales of its Versa Lite smartwatch.