The reason I am asking the question, is because I am trying to decide which to get first.
GoPro-GoPro has an accessory called a Chest Mount Harness

, which makes the camera easier to carry by having the camera front-center of the chest. Instead of having the camera mounted on the helmet. But they do not have a camera that includes GPS

, which Contour does have.
Contour-Contour has GPS-enabled helmet cameras. That takes care of having to buy an individual GPS unit, in addition to the helmet camera.

But they do not a chest harness in the list of accessories. So the camera can only be mounted on the bike helmet.
Any feedback would be great.
TIA