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The company’s latest helmet-mountable camera has a lens that’s twice as sharp, and an image processor that’s twice as fast, as the original’s. It also has an 11-megapixel sensor, up to 1080p video resolution, and an integrated battery warmer. Users cite its excellent image and audio quality and especially its bomber waterproof housing—the Hero2 can handle tumbles in snow and big waves. Available in outdoor, motorsports, and surf editions. $300
RUNNER-UP
Contour GPS
This tiny, 5.2-ounce 1080p video camera is embedded with a GPS receiver that automatically tracks your speed, location, and elevation up to four times per second. Download the Contour app to your smartphone and you have an instant wireless handheld viewfinder. The one bummer: the Contour lacks the waterproof casing necessary for soggy outdoor pursuits, which also makes wind noise louder at higher speeds. $300
