![]() A dash cam’s GPS receiver doesn’t provide turn-by-turn directions, though you need to use a smartphone car mount and a mapping app or a dedicated car GPS navigator for that. The best models have the receiver integrated into the camera body or mount, rather than needing a separate plug-in device. GPS receiver: A GPS receiver lets a dash cam record a car’s location, the trip history, and the speed and direction of travel-all valuable information for figuring out how an incident occurred.But it could come in handy if your footage is deleted accidentally, or if the microSD card gets corrupted or damaged in a crash. As with all internet-connected devices, using this feature comes with the risk of getting swept up in a data breach. The best apps also have a map that shows the car’s location, speed, and other details. Wi-Fi and smartphone app: We like an integrated Wi-Fi network because it allows the dash cam to connect to a compatible smartphone app, through which you can view, download, or share video.Most dash-cam makers give you a choice between mount types or sell other mount options separately. Mounts that attach to the windshield with adhesive pads are often more compact and very secure, but they can be difficult to remove for repositioning or swapping between vehicles. Generally we’ve found suction-cup mounts to be the easiest to use. Effective mounting system: We looked for mounts that held the camera securely yet allowed us to aim it easily, as well as to remove it easily.Models without a display-generally not our preference-require you to use a phone or computer to set up the camera and to view video footage. Easy-to-read display: Most dash cams have a display that’s 1½ to 3½ inches diagonal displays that are at least 2 inches make it easier for you to adjust settings on the fly and to preview footage.We also preferred models with buttons we could identify in the dark, as well as intuitive menus and a functional companion app. ![]()
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