[wryanzimmerman]

Garmin watches can be used this way, but it’s not quite as easy; you can even mount the watch as a USB drive and access a lot of the data that way if you want.

I did hit one issue once with maps on my fénix 7 where I had to plug it in to a windows computer specifically.

[jzig]

Yeah Garmin is about the most open, and maybe even more specifically anything that uses their ANT protocol (like Polar HR monitors).