I'm in the market for a GPS unit for my car. I've looked at the description of the Garmin c340, c550 and 7200 & 7500 units. I'm a novice at GPS, so would really appreciate some advice.
It seems the c550 will speak road names and that seems like a nice feature. The 7200 says it has a "huge" 7" screen and is for RVs, semis, etc. That doesn't seem too "huge" to me - would that be too big for a full-size Suburban? Is that too big to mount on top of the dash? The model 7500 says it has "dead reckoning". What is that?
Also, I've heard of Magellen. How do those compare to Garmin? I've also heard of TomTom, but know nothing about them. How do those compare?
Of course, I'm looking for the mose accurate and most repliable unit. Is that Garmin? What makes the TomTom popular?
And the final question is about maps. How are they updated? Do you buy a subscription? Are they downloaded over the air? How often do they need to be updated? (I only need USA maps at this point.)
Oh - what about a secondary unit for hunting/backpacking? Is the Garmin eTrex a good choice?
Thanks for any help!
It seems the c550 will speak road names and that seems like a nice feature. The 7200 says it has a "huge" 7" screen and is for RVs, semis, etc. That doesn't seem too "huge" to me - would that be too big for a full-size Suburban? Is that too big to mount on top of the dash? The model 7500 says it has "dead reckoning". What is that?
Also, I've heard of Magellen. How do those compare to Garmin? I've also heard of TomTom, but know nothing about them. How do those compare?
Of course, I'm looking for the mose accurate and most repliable unit. Is that Garmin? What makes the TomTom popular?
And the final question is about maps. How are they updated? Do you buy a subscription? Are they downloaded over the air? How often do they need to be updated? (I only need USA maps at this point.)
Oh - what about a secondary unit for hunting/backpacking? Is the Garmin eTrex a good choice?
Thanks for any help!