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Sorry, there was a problem. Please try again later.The speedometer on the Garmin Drive 52 may display a different speed than the speedometer in your vehicle. While the speedometer in a vehicle is based on calculations using tire rotation, GPS devices calculate speed based on your GPS position. The accuracy of the speed displayed on the vehicle and GPS device can vary, depending upon whether the vehicle's speedometer needs to be calibrated and/or how accurate your GPS reception is. Important: GPS devices should be used as a navigational aid and should not be relied upon for precise measurement of speed. Yes, the Garmin Drive 52 will give spoken navigation for the route being provided.
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