I have 2 ANT+ HR straps - one is the old school, rigid strap (fine for indoor cycling) and the 2nd is a soft strap/pod with running dynamics - useful for brick workouts (indoor bike, then run). In the old Sufferfest app, I paired both and the app detected which one I was wearing. Not so for SYSTM. I paired the hard strap and SYSTM could never find the soft strap. Today, I was wearing the soft strap and tried to pair to the SYSTM app. No go. I forced SYSTM to ‘forget’ the hard strap. Bingo! The soft strap was discovered within moments. So, it seems that SYSTM can only pair with one ANT+ HR strap, unlike the Sufferfest app.
Anyone have similar / different experiences?