What are the differences between the HRM-Dual and HRM-Pro? I want an HR strap to pair with my Forerunner 955 to get LTHR for zone calculation. Will the Dual get that job done, or do I need the Pro?
What are the differences between the HRM-Dual and HRM-Pro? I want an HR strap to pair with my Forerunner 955 to get LTHR for zone calculation. Will the Dual get that job done, or do I need the Pro?