As is the situation with most waterproof products, GPS systems are waterproof to an extent. While most hand-held systems are considered to be waterproof, the amount of water the system can tolerate without starting to malfunction is small. Being in rain for a few minutes shouldn't destroy the product, but drop it in a lake or the ocean, and chances are that it will not work...that's if it can even be recovered.
Yes, the marine gps chartplotter equipment is water proof. Since marines are basically always working in the water, the product has to be water proof.
The the Garmin GPS 72 is a waterproof marine GPS unit.
I would think that a magellan marine gps would be water proof since you would use it on the water. Your best bet to find out if it is for sure water proof is at this website http://www.magellangps.com/Navionics-Marine-Maps.
There are numerous accessories for your hand held Magellan gps. At this site: http://www.shopzilla.com/gps-accessories/gps+magellan+accessories/11100600/products you will find products such as batteries, windshield mounts, dash mounts, cradles, antenna,and leather cases.
Most GPS units differ based on the addition features they have such as the ability to play mp3's or access the web. At the most basic level, a hand held GPS is no better or worse than other models for providing your location.
The benefits of purchasing a hand held GPS unit over a standard is that the hand held version is extremely portable and does not require to be plugged in. Also these units can also be used for walking navigation and not just driving in a car.
Hand held gps systems would not be good for young drivers, because they are inexperienced drivers. They could end up crashing their vehicle or running off the road, because they are paying more attention to their hand held gps unit. Here is link for verification:http://www.good-legal-advice.com/personal-injury-blog/dangers-of-using-a-handheld-gps-while-driving.htm.
A hand held GPS is certainly a portable electronic device.
You should expect to spend around $100 for your average hand-held GPS system. They can vary greatly in price though, and you may also be able to find them on sale for even less.
The Garmin Oregon 400t is a great hand held GPS unit that will fit in a purse.
Global positioning. they provide driving directions for those that travel a lot.
A hand held GPS system is designed for hiking and outdoor adventures. It is rare to find navigation systems that are made for walking through city streets, because there are mobile phone apps for that. Portable GPS devices are loaded with detailed topographic maps of mountains, hiking trails, bodies of water, parks, and other similar environments. The battery life for the best portable GPS systems can last for up to about 20 hours. Additionally, these gadgets have weather and impact proof designs.