Summary: Ok, So I am a river guide in Oregon and I also hunt a lot. I needed a GPS that would be waterproof and able to be accurate, rugged and functional with accurate mapping. This fits the bill. There are however, problems. I smartly went to an after-market provider to get maps via the SD card.
Summary: The Magellan Triton 500 GPS contained corroded double A batteries. There was minor damage to the GPS at the contact points of the battery that were able to be cleaned. In the future, removal of the batteries should be the practice.
Summary: The device is very accurate. The topo usa map that was sold by Magellan for this device could use some improvement. The maps are off for some areas by 300 feet. I use it mostly for geocaching and it takes me directly to the spot (within 3 feet accuracy).
Consider your needs and usage before choosing your GPS.
15 April 2010
Summary: I really wanted to like the unit more than I did, because to me GPSs are still just plain cool. I own several of the Magellan Meridian models (with and without compass, regular and marine versions), an old Garmin car GPS, a Garmin 60 Cx, and an iPhone with MotionX GPS (if that counts).
Summary: Good point. GPSChip is SirfStartIII. The image map can be used. Bad point. Daytime: Dark screen. It is not easy to see. Night: The backlight is too bright. A reverse-route cannot be used. Why Others: Duration: With eneloop for about 15 hours (backlight OFF).
Summary: I purchased this unit hoping to download maps from NG's TOPO. Unfortunately, this unit doesn't work with Macs--at least not yet. And no word as to when (if ever) it will. So if you're using a Mac you might want to hold off or look elsewhere.
Summary: I had a explorist 400 and had all the maps for it. I tried to use them in the triton 500 and I couldn't. I did buy a accu-terra for it to help me along. However the Direct Send(street map & directions) don't work for it. It won't work the topo software either. It chews through batteries quickly.
Summary: Most of my previous GPS experience has been with vehicle-oriented GPS units, but those tend to be very lacking in usability for other outdoor activities. This unit is handheld, and pretty durable/weather resistant, and handles topo maps so it's obviously much better suited for such purposes.
No third-party support, bad for geocaching, mediocre battery life
Jonathan Smith "archao-geek", Amazon
16 September 2009
Summary: My primary gps is a Garmin 60cx. I picked this one up on sale to use as a backup GPS and (I'd hoped) to use a geocaching GPS that I could carry with me most days since it's a little more compact than the Garmin I have.