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heart rate readings wrong hrm-run strap

im currently using a fenix 6x with hrm -run chest strap my hr readings are way way off my hr readings when jogging a decent [recovery] raise way higher than when attacking a steep climb also some slow recovery days hr should be no more than 138/140bpm yet these can sometimes be hitting 170plus when im actually breathless i wet strap before use wash with soap regular yet these readings are causing me confusion and annoying me any help appreciated strap is only 6 month old

0 hobbycyclist over 4 years ago

Please check if your HRM run is actually connected to the fenix. If not, the fenix will use wrist heart rate instead (your description sounds much like that). After 6 months it is likely that the battery of the HRM run has died. If a new battery does not bring the HRM run back to life, you should contact garmin support.