Originally Posted by
Jamie1978
It actually has a cadence sensor with it. I have a garmin heart rate strap already but wasn't sure if the edge 305 supported heart rate sensors.
According to Garmin the 305 originally came with a heart rate sensor. My experience with a 705 would suggest it's quite agnostic about the HRM but will only work with the Garmin GSC-10 combined speed and cadence sensor, whereas new ones work with pretty much any Ant+ device. The 305 is pretty old now, though. Unless you've found one that's barely used I'd be inclined to go with something newer. I now have a 320 plus and it locks on to satellites an order of magnitude faster plus instantly downloads rides using BlueTooth, rather than having to plug into a computer.