I understand these are the top 2 brands.
I don't need a lot of extra features and such, so here's what's important to me (i'm in US)
1) Basic GPS operation (point A to point B, accuracy, points of interest, being able to do a detour, displaying the estimated time of arrival, displaying all the street names that you're passing along the way and not just some, how easy it is to enter an address) EDIT: also it has to tell u which side of the street your destination is on, my $30 gps does that so anything that doesn't that costs any more than that is not for me
2) traffic (is it only freeway traffic or street too? can it change the route automatically based on new traffic info? any other questions i should be asking (i've never had gps with traffic))
3) how easy is it to update maps etc through file sharing (tom tom looks more complicated, but the instructions seem more clear whereas the garmin instructions aren't written as well - i could be wrong, how easy it is, how quick it is
4) any other questions i should be asking?
thanks