WOLFBOX G840S 12" 4K Mirror Dash Cam Car Camera, 2160P Full HD Smart Rearview Mirror for Cars & Trucks, Front and Rear View Dual Cameras, Night Vision, Parking Assistance, Free 32GB Card & GPS

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Here at the Good Housekeeping Institute, we regularly review and test all kinds of car gear, from the best car accessories to car cleaning products.

A rear-end collision can cause nasty injuries like whiplash and potentially costly, especially if blame is disputed. Please check whether the rear camera cable is obviously damaged, especially at the cable interface to see if the 4 pins are broken. The camera is hardwired into your car's fuse panel, and the video is sent over a cable that ends into a mini-jack that plugs into the overhead mirror display.

With Panorama display turned on, the reversing image will not be enlarged and show the actual distance.

Sign up to the Parkers Newsletter to keep up to date with more of the latest reviews, news, and recommendations from the Parkers team. Though they did find that the image quality could be better, especially at night, it was more than clear enough to see any reasonable obstacles with relative ease.If your car is a RV or a pickup truck, you can install the rear camera forward (the bracket is below), and turn on the “Upside down of rear camera” and turn off the “Rear Cam” Mirror Image” to adjust the image. Car and Driver did note that physical installation is straight forward once you find the correct app (there's one for Android and one for iOS), though they found the instructions confusing. But once done, you will have an excellent mirror dash cam with impressive picture quality at your disposal. When it's non-active, it's a perfectly fine rearview mirror, but when you turn it on and put your car in reverse, it turns into a high-definition rear- and front-facing camera.