Best Buy offers the GoPro HERO3+ Black Edition Helmet Waterproof Camcorder, model no. CHDHX-302, for $349.99 with free shipping. That's the lowest total price we could find by $50. (For further comparison, we saw it bundled with a $51 Rakuten credit for $12 less in July.) It supports 1080p video, up to 12-megapixel photos at 30 fps, and features a housing that's waterproof to 131 feet, battery, and charge cable.