HTC's RE action cam is a weird little periscope that takes really solid footage. But despite its waterproof body, hand-sensing power-on function, and 146 degree field of view, it was a tough sell at its $200 debut price in the world of GoPro. But at $100, you could do a lot worse for a little action cam. [HTC - RE 16.0-Megapixel Waterproof Digital Camera, $100]

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