this post was submitted on 05 Aug 2025
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cross-posted from: https://lemmy.world/post/33995436

I am looking for a good fitness tracker to start doing cardio in a more measured way.

I was interested in Polar and Oura as EU alternatives (both Finnish companies), but both send data (health data, which is sensitive according to Article 9 of the GDPR) to AWS.

Are you aware of any EU solutions, or at least non-US, Chinese, Russian, or Israeli solutions, that do not send my data to companies in those countries?

I would like to be able to organize something self-hosted, but I don't think I'm capable of doing that yet.

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[โ€“] HelloRoot@lemy.lol 13 points 3 days ago* (last edited 3 days ago) (1 children)

What features are you looking for? What OS? What kind of cardio?

There is gadgetbridge for Android, where you can connect a lot of fitness gadgets to and all your data stays on your smartphone. (Check out supported devices to find which hardware to buy).

Then there is opentracks for outdoor cardio, that can either connect to heart tracking stuff directly (like the polar H10 for example) or get data from gadgetbridge.

In both cases you cut out the official app and thus the cloud, but can use commercial high quality hardware.

There are hundreds of open source fitness related projects and devices that work with them. So you have to be clear about your needs, wants and wishes.

I've been using an Amazfit Band 7 with gadgetbridge for almost a year and it's been great for keeping all my fitness data local - decent battery life (about 2 weeks) and it only cost me like $40 on amazon.