Originally Posted by
HydroG33r
Where did you hear that? The protocol used to communicate with your HRM has nothing to do with Strava... Depends on the device. iPhones (and probably most/all smartphones) have Bluetooth but not ANT+. My garmin edge 510 uses ANT+ and I upliad just fine to strava.
Some HRM's are Bluetooth and ant+. And there are also ANT+ receivers for smartphones.
The Strava Android app doesn't support ANT+ sensors even if your phone does. Sony and Samsung have quite a few phones with ANT+ support. So if you want to get HR data from an ANT+ HRM into your Strava data using a phone, you have to log with something other than the Strava app and then upload post-ride.