I've got the Garmin map76Cx, another GPS for the car for directions and my Android phone.
For paddling the Map 76CX floats, is waterproof, accepts a memory card and for my purposes does all I need it to do. I have a 16 gig card in it, with the entire eastern half of the US on it. I can change what maps I have if I want using my set of Map source cd's that I have for the entire US.
The reason I prefer a dedicated GPS for paddling is that I can keep my eyes on it at all times. Particularly when I'm tracking my speed. I have to keep my phone tucked away and battery life is now where near as good as the Garmin with lithium batteries.
Classic Freestanding Rack
Rescue / Throw Bags
EZ-Dock modular docks
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