This
pulse tracker/monitor from Garmin may be a pure, stripped-down pulse strap. It’s ANT+ compatible only, and can pair to any device with ANT+ capabilities. The soft strap is straightforward to regulate , comfortable to wear for long hours, and machine washable—simply remove the plastic heart module that’s held in situ via two snaps. Ideal for: anyone with an ANT+ bike computer or watch who wants to feature highly accurate pulse data.
https://atmme.org/
