Hey CAJW, Just tested it out on my vivoactive 3 music. After your finished with your activity, of course we press the side button. If finished, then press done and do nothing else but sit down for up to 2 minutes staying relatively still. It will pop up for you and show your BPM and heart rate recovery. Don't know if it shows anywhere so make note of it and then either save or clear the activity and your done. Hope this helps...