I bought a Contour HD 1080P years ago and it's still going strong. One of the things I like about it (which I didn't know when I bought it) is that the battery is a standard Nokia BL-5C, so it's been really cheap and easy to get replacement batteries over the years. I don't know if the current models continue to use that battery. My regular commute is up to about 90 minutes which the Contour will do provided you aren't recording on the highest quality setting.