Which Garmin HRM chest straps can transmit HR real-time so you can see your HR while you run?
I saw a chart here: https://buy.garmin.com/en-US/US/p/682155#additional
that seems to say that only the HRM-Dual and HRM-Pro can transmit real-time HR, but that just doesn't seem to make sense to me so I wanted to be sure.
I have a forerunner 245 if that matters at all.
Thanks!