Reccomend me a Garmin GPS for primarily boat use?

While Garmin makes good equipment, they have a history of changing their technology so that nothing is backward or forward compatible!!! If You want newer charts for your gps you will have to buy BOTH the new chart AND a new gps ....
Also, whats with the display at the bottom ??? your hands have to cover it in order to mash the buttons at the top ... most others have the controls at the bottom so you can see the results as you enter.its a matter of choice, check with other captains see the gps system thay use. most boaters will help you in your selectionIt really depends on how much you want to spend. Bigger screens are the best, but there must be a dollar limit you have.

I bought the 450s for my boat, the screen is big enough and is preprogrammed with all the info I need, no chip necessary.I guess the bigger question is which chart system you need. West marine sells both software and hardware, If there is one near you, stop in and look at everything. I use the Ray marine C series. Easy to see! Important for old guy! Good Luck!!!I have the 176 sounder and LOVE IT
I recommend a sounder/gps unit in one.
Also go color! Grayscale is a thing of the past and does read easily in bright daylight.
We are avide boaters and have been aboard many boats with other brands that are harder to use, less features.
For the money, Garmin is the best bang for the buck.
I own 3 various models for various usages, and am 100% satisified with all units.

Digital Yacht - From Southampton Boat Show 2010 - Exclusive Look at iAIS Wireless Receiver








Digital Yacht has developed a new, low cost navigation device for use with Apple's popular range of mobile products. Called iAIS, it wirelessly links a boat's navigation data to the Apple iPhone, iPad or iTouch. It also incorporates a highly sophisticated, dual channel Automatic Identification System (AIS) receiver allowing compatible "apps" access to NMEA instrument, GPS and AIS data. iAIS, which helps boaters identify other vessels that are equipped with an AIS transponder, communicates with the Apple devices via a WiFi interface. iPad and iPhone users simply turn on their device to wirelessly connect to the iAIS hot spot. No connection to the internet is needed and there are no cumbersome cables to connect. The AIS data (which brings information such as position, name, call sign, MMSI number, course and speed of other ships) then becomes available for any compatible application. This information is essential in alerting boaters to others in close proximity and can help calculate if paths are likely to cross and how soon. AIS is an essential piece of kit that enthusiasts and professionals alike will not set sail without, as it is proving to be key in collision avoidance. iAIS also multiplexes any other NMEA data that is available on board the boat - for instance GPS, depth, speed, wind etc. All of this information is combined with the AIS data into the wireless feed. Some users have complained that the GPS devices incorporated into the iPhone and iPad suffer from jitter ...





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