[rufus_foreman]

What I want is a fitness tracker that doesn't require me to create an account or store data in the cloud, where I can just transfer the data to my computer using USB or Bluetooth or something like that. Apparently I'm the only one because such a thing doesn't seem to exist.

[angrais]

Such things do exist, particularly for medical purposes. What type of "fitness tracker" are you after? Explain more and I am certain that i can offer at least three sensing devices that suit your needs that record data offline.

[rufus_foreman]

Something that could monitor heart rate and rhythm, steps, sleep, breathing, that sort of thing. Blood pressure if that is even possible.