“What does this navigator system do that a phone navigator want do?”

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• A phone GPS app is great till you are out of cell range. I use both.

  Answered by LikeToTravel 8 years ago

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• The phone navigation system works from tower to tower and can skip, thus you might miss an important turn. This has happened to me. While the Garmin works from maps that are already downloaded into your Garmin, thus you are less likely of missing that important turn. And warns you of changes, traffic alerts, etc.

  Answered by oscar 8 years ago

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• The nüvi 57LM is an easy-to-use, dedicated GPS navigator that does not rely on cellular signals and is unaffected by cellular dead zones. Thanks, James

  Answered by GarminProductExpert 8 years ago

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