Bonneville America Forums Forums Rider Safety Forums Helmets and Gear GPS - Pros and Cons

I gots the 450...the only differences between that and the 550 is bluetooth capability and text-to-speech on the 550.

Basically you can use your cell phone on the 550...who cares about that?

And while the text-to-speech feature is nice, it's not worth the extra few hundred bucks to hear "turn left in 500 feet on Elm St." vs just "turn left in 500 feet"

edit: oh yeah...the 550 is good for XM radio I believe too. Doesn't matter to me...I use the mp3 player function all the time. I use an 8gig SDHC card...the player can "see" up to 1000 songs...any more will go unnoticed by the Zumo.