Thanks for the update. I'm using a Wahoo Blue SC, Wahoo optical HRM, and my phone temporarily and I'm looking for a cheap 'puter that will display HR. With the speed sensor, I'm getting distances very close to my wired 'puters got, and my goals are distance-based.
I think I'll go with an IGSport 50 in a few months, since I'm on a trainer now.
2nd year in a row at 1000+ miles, and more miles in 2018 than 2017.