In an effort to stand out from the crowd, dash cam manufacturers are offering systems with an increasing number of cameras. Vantrue's Nexus 5S doesn't just have forward-facing and rear-facing cameras, it also has two interior/cabin cameras, making it a 4-channel dash cam.
The inclusion of two cabin cameras isn't just useful for taxi or ride-share drivers wanting to protect their personal safety; both cameras have a wide 160-degree field of view, so they can see through the side windows of your vehicle to capture vital footage of a side impact or side swipe collision.
