The new Contour +2 versus Contour +1, Contour GPS and Contour Roam. We own the Contour +1, has a jack for an external mic which works well except all the cables we have for the mic.
You have to wire yourself. Our camera is not waterproof but water resistant. The new +2 apparently is like the Roam with waterproofing built in as well as the external mic jack. Oiy…these cameras keep coming out even trying to out do themselves.