H10 and Gym Equipment and Fenix 5x

I currently have the HRM-Tri but I'm looking to get another HRM for indoor training. I would like to get one that will connect to my watch and the gym equipment, most aren't ANT+. I was looking at the Polar H10. I know there have been issues with the Polar H7 and it not showing any data even when connected. If anyone has info or suggestions please let me know. I will most likely keep using the HRM-Tri for my outdoor workouts, esp with the running dynamics.