When you need a stand - alone car GPS: Car GPS will work in cell service dead spots. They won't drain your smartphone’s battery. They also won't eat up your phone data pack.

The top three car GPS makers are Garmin, TomTom, and Magellan. Among these, Garmin makes the best car GPS for the common people. No need for tech gadgetry on your side.

The best car GPS: Garmin nüvi 2539LMT (all the feature you would need, great price)

The second best car GPS: Garmin Nuvi 58LMT (just a bit slower, cheaper resistive touchscreen.)

The best affordable car GPS: Garmin nüvi 55LM (large seven-inch touch screen)