
Garmin Edge 530

Garmin Edge 530
Question in the round, as I have lost the overview here with the sets. I just want to mount the Edge 530 on my road bike. The bike already has a power meter built in, so I don't need the cadence etc as separate sensors. Does this come with a speed sensor or is this done via GPS? Or do I have to take the bundle for the speed? Would be kind of nonsense, since I can already call up pulse + cadence and only the speed is still missing... Thank you for your support dear community :-)