Here's what other sites are saying:
Follow your route over detailed basemaps for a fraction of the cost of comparable GPS units. Preloaded with 32 MB of U.S. maps showing cities, roads, lakes and rivers, plus shoreline detail for coastal navigation. Internal 16-channel WAAS-enabled receiver supplies quick and reliable satellite lock. Highly readable Film SuperTwist, 16-level grayscale display shows maps and your route in vivid detail. Large internal memory stores up to 100 waypoints on 100 retraceable routes; select from 42 graphic icons to personalize waypoints. Waterproof construction meets IPX7 standards (submerged one meter for 30 minutes). Two AA batteries (sold separately) supply up to 48 hours of normal operation; back-up memory keeps data safe.
The Lowrance iFinder GO GPS unit is an easy-to-use, 16-channel, compact GPS+WAAS handheld the includes 32MB of built-in memory preloaded with a background map of the continental U.S. and Hawaii, including coastal nav aids and wrecks and obstructions. It helps you to find and map your way with 1,000 waypoints/1,000 event markers/100 routes and up to 100 retraceable plot trails, with up to 10,000 points in any trail.
- FogDog Sports
Lowrance iFinder GO2
Lowrance iFinder Expedition C Plus
Lowrance iFinder Explorer Plus
DeLorme inReach Explorer Handheld GPS Receiver / Locator Beacon
Garmin eTrex 10
Garmin Oregon 600
Garmin Foretrex 401
$180 - $199