You're buying newer watch, and your HRM Pro - the highest model of Garmin HRMs stops to be compatible. Looks like it's time to dismiss entire Management and hire…. Yes I know. But the closest comparison to Venu 2 from watches that support running dynamics is Epix 2 and Fenix 7, literally just due to the touchscreen. Removed the HRM Pro form the sensors on my 955, checked the connection was ANT+ ( it was previously) and re paired the HRM and the watch after I rebooted the watch. Everything seems to be working fine now MFHFCG.

garmin hrm pro plus connect to watch