This thread https://news.ycombinator.com/item?id=10932968 gets a lot scarier now. My response then was https://news.ycombinator.com/item?id=10933325

  Dear Customer,

  We are sorry for improperly sending out the "Broken
  Heart" alert to you on January 21, 2023.  We should
  have sent you the "She's Pregnant" alert.  In the
  future, please ensure both you and your dating partners
  are running the same OS version.  Thank you for your
  understanding.

  sorry,
  FizzyBaneFitness

substitue Google Fitness now

Five or six years ago, I would have said, "Great! Now my Fitbit will be better integrated with Android and my Google ecosystem. Plus it will inject some much needed stability into a faltering company, to bolster the quality and advance their products. Yay!"

Now I think about the fact that I just looked someone up on contacts.google.com, then added a visit with them to calendar.google.com, and talked with them about it via gmail.com. They know so much about me already, and now they'll have my health history.

The only silver lining is that their security is probably better, and my data is less likely to be hacked and stolen.

But otherwise... Looking forward to a nice Linux/open software fitness watch, from a Kickstarter or other effort, so some of us can take better control of our data.

I have been using an app called Fit-to-fit to sync my heartrate and sleep data from Fitbit to Google Fit for years. This saves me some trouble so I'm excited! Any idea when this will be delivered?

Exactly. They say it as if joining Google was a positive. No it it isn't. Just tell the truth: you sold Fitbit and made bank. No issue here.

Quite. Note that Google have been mailing "welcome" messages to people who... deleted their Fitbit accounts before the acquisition, so that's off to a good start.