The nüvi 550 promised everything you could wish for as an allrounder from a Navi: car navigation, off-tracking, geocaching ... I've previously the zumo 200 ordered for motorcycle, was sold out, in between then had the nüvi 6xx, which had already great. With the additional functions I promised me everything I wanted. All thing are the functions for 6xx impaired, the menu is not so well stocked. I have not found until now satellite function, switching between auto and pedestrian mode brings the Navi sometimes confused: either to stop working the routes or the map does not display properly. Geocaches GPX files with special characters are not even displayed. So you must have recourse to the fee-based offer from GC.com or adapt in mühervoller crafted the GPX files. The Whereigo function I could not test it first, because then the Navi boots just new! The serial no. accepted not only garmin.com for updates and the nüvi 550 does not appear in the Download List.
Conclusion: really great hardware, because the device looks sturdy, the LCD brightness can be seen even in sunshine sogra at 10%, Waser tight it is and the battery actually holds> 7h. but the software is a beta version. Unfortunately. And the TMC receiver must match