Originally Posted by spdrcr5
One of my concerns is using the 305 on a trainer during my weekly spin class. How does the 305 switch between the wheel sensor and the GPS for miles/speed? Is this automatic when it loses GPS signal?
For those that have the HRM with their 305, how comfortable and sturdy is the chest strap? The latest Polar strap is very comforable and stays in place. It also uses snaps not the plastic "buttons" like their old style did.
Thanks.
It will switch by itself, but takes a while to figure out this is the best thing to do. You can switch it manually fairly easy once you get the hang of the menues.
The chest strap is good. Fits as well as the polar. I think the buckles are better than the polar.
Jay C beat me to it.