Originally Posted by
Don777
I realize you asked about the 810 but I have the 800 and have had no problems with the mapping functions. I downloaded the Open Street Maps(OSM) that I needed and put them on the mini-sd card. I have created routes with Ride With GPS and uploaded them to the 800, set the device to notify turn-by-turn and it follows the routes flawlessly. On a rare occasion, for some stupid reason, it will not give an alert prior to the turn, but other than that it is great. I have found that 'googling' for answers on my problems have given me the information I needed.
It doesn't make sense but the 800 might actually work a bit better than the 810. Though, it looks like some of the problems that the 810 had were fixed with updates to firmware.
The 800 works very well.
(If it has worked "flawlessly", you haven't used it enough!
)