The Garmin iQue 3600 is built as PDA first, GPS second. The GPS features are just additional features to other PDA features such as PIM info, MP3 playing, etc. The iQue 3600 isn't rugged as the standalone sports GPS. It will survive fine if you use it as PDA, use it for driving directions in the car, holding it in your hand while hiking...but it's not a good idea to bump it against any hard surface (rocks, trees, etc.).