The description says that the waist belt works with the Sports Tracker app. But there is no way to connect the transmitter. Hans also tried the Suunto app, but it doesn't find anything there either and only shows watches that you could connect to. How do I connect the transmitter with the app (I don't have and don't want a watch, because it bothers me on the handlebars), it advertises very well that it also works if you don't have a watch (with you). So it should also work without a watch? Or is there some marketing behind it that you need both?