heart rate monitor

I’ve never had the urge to buy an i-phone but this phone from google may be the one that cyclists turn to. It will have great interactivity with google maps and what I’m wondering is how much it will effect companies like Garmin. Having a heart rate monitor may be what saves some of the

I have a Polar 720Si that I have been using for some years now. Check out the graphs of my Tuesday night training and the Hakuba hill climb. The graphs speak for themselves mostly and I use similar graphs of race data (races I’ve already done once) and simulate the same heart intensity on my