With the new Peloton Strive Score a heart rate monitor is needed. I found this compatible one on Amazon. It connects to your bike with Bluetooth and easily turns on with a few drops on water🖤 I also linked a bunch of other things I use with the Peloton✨ LTKunder50 LTKfit http://liketk.it/3fnCz liketkit @liketoknow.it