Originally Posted by
pdlamb
At the risk of oversimplification:
500 records the ride
510 adds heart rate and cadence
800 adds map (over 500)
810 adds HR and cadence to 800
Touring is like 800 with free maps
Touring plus adds HR and cadence
1000 is like 810 talking to your cell phone
500 and 800 both have ANT+ for power, HR, cadence and are / were available bundled with HR & speed/cadence combo sensors. The 200 cannot connect to sensors.