The basic difference between the two is bascially one is upgraded. The Garmin nuvi 350 has a new sirf chip that makes it extremely accurate i recommend the garmin nuvi 350 check out this review site it gives more details. just check this out
http://squidoo.com/garminnuvireviews
The differences is the the garmin 340 is upgraded. I wouldn't recommend either because you could get the garmin 350 for thirty dollars more and it's extremley more accurate. Most people upgrade to the 350 so you're better of getting right away check this site out it gives you more details http://squidoo.com/garminnuvi350personaltravelassistant
370 710 - 340 = 370 340 + 370 = 710
The three top selling navigation devices include the Garmin Nuvi 3790T, Motorola MotoNav TN765t and Tom Tom XL 340 S. You can read details and reviews at this web address: http://reviews.cnet.com/best-gps/
There are several top GPS handheld systems on the market. Garmin is a popular and reliable brand, known for its accuracy and durability. Other reputable options include Magellan and DeLorme. Ultimately, the best choice depends on your specific needs and budget.
340
The difference is the engine..........one is a 6 cylinder the other is a v8. Other than that not much.
340 miles
340 miles
330 and 340.
about 340 miles
340 miles
340 miles