Telenav GPS Navigator
Users aren’t limited to a single carrier, since the Navigator is compatible with AT&T, Sprint, Verizon, T-Mobile, Nextel, Alltel, and Qwest. The system also provides three-dimensional maps and real-time traffic data, including incident reports (though not for all carriers), that can help find an alternate route.
Telenav’s mapping strength is also its biggest drawback: the tool works best with powerful, large-screen phones. And if your cell doesn’t have an internal GPS chip, the upgrade could cost you up to $100.
Verizon VZ Navigator
A simple interface and audible directions make this software very user-friendly. Verizon’s massive capacity allows it to store turn-by-turn directions to upwards of 11 million points of interest, so you’re guaranteed to find that off-the-beaten-path gas station.
The software is exclusive to Verizon users, and lacks live traffic info and three- dimensional street views.
Both systems average $10 a month, but with multiple- carrier options and 3-D maps, the Telenav GPS Navigator comes out on top.