Got an old iPhone lying around? With a few inexpensive gadgets, you can turn it into a reliable dash cam for security and protection.

Consumer Reports explains the common specs and features you'll find in dash cams, and answers common legal and insurance ...

The Rove R2-4K is an affordable, single-channel dash cam with integrated GPS as well as phone connectivity. Captures are good if not the best we've seen.

Nexar's Beam2, two-channel dash cam is stylish, capable, takes good captures, and uploads them to the cloud via its integrated LTE. But it's got some downsides, too.