For example, let’s say I want to use a Fitbit. I download the app, enter my real height and weight, but I give a masked email, fake name, fake birthday, etc. I always use the app with a VPN.
When doing an outdoor activity, I would allow my precise location on a run.
Is there really much of a privacy risk if they don’t know who I am?
Please don’t just suggest Gadgetbridge or a similar alternative.
As another person mentioned Fitbit belongs to Google. If you are an Android user chances are Google knows who you are and can correlate Fitbit user account with your identity.
Use more private device with 3rd party fitness app