DuoTrap cadence and wheel sensor works well for my son. He's been using it for 2 maybe 3 years now. However he uses it with a Garmin 820 and a Vivosmart HR. Both ant+.


I thought most Samsungs had ant+ built into them. Have you tried that. However if the app it's going to doesn't connect that way then that's an issue too.

I used to use mapmyride. They used to be good at answering support tickets when you go through their site.