There are several series of prior posts on the subject. Garmin versions seem to be gaining ground, but folks use everything from laptops in car to handhelds... FWIW we use Garmin C320 (uses memory card v C330 with hard disk) and only complaint is a little hard to read in bright sunlight when wearing sunglasses.. Also takes a while to search if you've installed large SD memory card.
Use search tab above for "gps" and "portable"..
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Condoluminum
In Theory, there's no difference between Theory and Practice, but in Practice, there is usually a difference...
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