OK many thanks!

and about x20 or x30 what do you think are better or has a better ratio price/quality?
Maybe there are other trademarks of GPS that give better models, what do you think about Garmin models, do you prefer Garmin to Tomtom? and in this case whics models of Garmin do you prefer?

I would like to know a little more about the models that there are in the market and your opinion about them.
Thank you for your advises in advance