I don't understand the fascination with coupling one's phone to a vehicle. Phones run out of battery. Can't read them in bright sun. Their bluetooth and Wifi are problematic. And you expose a $400-1000 phone to weather. Give me a $10 LED display on a cable.
Ditto with the wireless cadence sessor. Who needs to be replacing batteries like I do with the sensor in my $10 bike computers.
Well, it does look attractive to the tool-less contingent. I might throw $89 at one on the used market. Naah. It's too clunky looking.