Hello.
There are 2 sides those that love Garmin and those that love
Magellan Both have strong points and weak points the website you have been looking at is the site to go to for info on gps devices, Do not get a wrist watch Gps You'll go through batteries fast and the screen is to small..That said I have 2 Gps units magellans Map330 and Meridian green with a 64 meg SD card and mapsend topoo on it love them both.
Lee