I currently take my phone with me while running, but it's very annoying to take imo.
Like the title says, is there a privacy friendly smart watch that could track my sport activities?
Bonus if it can also sync the data to my private server / NAS :D
There is this app https://www.gadgetbridge.org/ and it supports quite a lot of smartwatches, which you can pair up with it. Gadgetbridge doesnt send out any data and gives you full control.