Originally Posted by
dalava
If you don't need ANT+, Garmin Edge 200.
If you do, Garmin Edge 500. And if you want to splurge, Garmin Edge 800.
/thread
This.
ANT+ is what allows you to connect a heart rate monitor, cadence/speed sensor, or power meter to the unit to record the data. Many cyclists like the HR and cadence data and the more serious ones (or those who like gadgets) use the power meter.