Hello,
I use the Tacx Flux S as my indoor trainer and have a Fenix 5x and Sufferfest as the training platform. Sufferfest connects well with my trainer and then sends all the information to my Garmin connect. The only problem is that I'm not getting my heart rate data on the Sufferfest, therefore, when Sufferfest data transfer to Garmin connect it doesn't have the HR data. My question is: is there a way to use my Garmin Fenix 5x as a HR source to Sufferfest? Thank you for your help.