I want to know how many calories I am actually burning, to that end I need a fitness tracker that tracks my heart rate and does the math for me.
I don’t need anything that does text messages, email, alarms, weather, GPS, anything like that.
What’s the cheapest most accurate way to do this?
I recently bought a used Garmin instinct. It seems to do the trick. The measurements seem accurate and it is robust and very cheap.