Offering the protection of an eyewitness that never blinks, the Garmin DriveAssist comes with a compact, built-in dash cam that continuously records your drive. If a collision occurs, Incident Detection G-sensor will automatically save files on impact. GPS records exactly where and when events occurred. A replaceable microSD card is included. Easily play back video footage right on the device, along with a map view of where you were, at the time of the incident.