I use a garmin in an aqua box with success. Sold the zumo that came with the bike. never understand why garmin needs to put out 200 different models every year, and discontinue every model before it. Garmin, if your listening..... please make only a number, like 8 or 20 gps's of all price ranges and go from there. Features and price range go up as necessary. Im glad the smart phone is developing much faster, and i have an S3 now. I'm thinking after my next phone, the garmin gps is over.