The best dash cam for safety, security or just recording curiosities that happen on the road will depend on a few key features. It’s hard to choose since there are so many dash cams on the market, most from brands you don’t know.
All dash cams have the same core purpose that makes them unique among digital cameras: They record live (not time lapse) video as you drive, running in a continuous loop, the “length” of which varies by the amount of storage in the cam. Every feature beyond that is optional and, often, superfluous.
First, think about your budget: You can spend tens to hundreds of dollars on a dash cam, but start with a rough idea of what your reason for having one is worth. If you want to record evidence of a crash you’re involved in, that’s easily worth hundreds of dollars; If you just want to capture the occasional YouTube moment, that might warrant spending less than $100.