I would imagine that's a lot like asking which is a better truck.. Ford or Chevy. Everyone is going to have a favorite. I have an old Sena that I got on eBay and it works fine. I have heard the new Cardo units are good. But my buddy tells me that the new Sena's are great.......... Like I said.....I am a new owner to a 2020 spyder rt limited. This is my first spyder I had a 2006 Gold wing before this. I am looking to buy my first Bluetooth headsets and am not sure if Sena or Cardo is best. Any suggestions?