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| Price | $319.99 |
As shown: $749.99
| $299.94 | $468.95 to $564.94 | $116.00 to $149.95 |
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| The Bottom Line | If you can afford the hefty price tag, the Garmin Nuvi 660 is a solid-performing and versatile GPS device that offers all the navigation basics, tools for the world traveler, Bluetooth, and more. | The Garmin Nuvi 3790T is an exceptional portable navigation device with just the right blend of form and function. | |||
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| Features | |||||
| Destination | Automotive | Automotive | Info unavailable | Marine | Hiking Marine |
| Included GPS accessories | Car power adapter Vehicle mount USB cable Automotive windshield mount | Car power adapter AC power adapter USB cable Carrying case Automotive windshield mount | Vehicle mount Dashboard disc USB cable Suction cup mount | Power/data cable Protective cover Flush mount | Info unavailable |
| Included GPS software | MapSource City Navigator North America NT | MapSource City Navigator North America NT | MapSource City Navigator North America NT | Garmin Worldwide Marine Basemap | Info unavailable |
| Audible assistance | Street name announcement Navigation instructions | Street name announcement Warnings Navigation instructions | Street name announcement Navigation instructions | Info unavailable | Info unavailable |
| Weight | 6.7 oz | 6.7 oz | 4 oz | 1.8 lbs | 7.7 oz |
| Navigation waypoints | 500 | 500 | 1000 | 3000 | 500 |
| GPS PC connection | USB | USB | USB Bluetooth | NMEA 0183 NMEA 2000 | Serial USB |
| System features | Calculator Clock Garmin Lock 2D / 3D map perspective Preinstalled POIs Custom POIs | Alarm Calculator Timer Stopwatch Built-in FM modulator 2D / 3D map perspective Built-in microphone Hands-free calling via Bluetooth Preinstalled POIs Custom POIs Built-in speaker Optional external GPS antenna connection | ecoRoute Speed limit warning Garmin Locate nüRoute Technology with trafficTrends Garmin Lock Photo navigation nüRoute Technology with myTrends | Alarm Automatic routing Optional external GPS antenna connection | Info unavailable |
| SBAS system | WAAS | WAAS | Info unavailable | Info unavailable | Info unavailable |
| Antenna | Info unavailable | Built-in | Built-in | Built-in | Built-in |
| Navigation routes | Info unavailable | Info unavailable | 100 | 100 | 50 |
| Waterproof | Info unavailable | Info unavailable | Info unavailable | Yes | Yes |
| Body material | Info unavailable | Info unavailable | Info unavailable | High-impact plastic | Info unavailable |
| Navigation tracklog points | Info unavailable | Info unavailable | Info unavailable | 10000 | Info unavailable |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
| Buying choices | | Pricing not available | | | |
| Remove from comparison | Remove | Remove | Remove | Remove | Remove |

