0ur opinion: :0ne of the most popular Lowrance handhelds, now with a crystal clear color display - plus 16-channel GPS precision. The iFlNDER H20 comes with sporty styling and a sure-grip rubber welt seal, along with dual processors and a high-res color screen!
:0ne of the most popular Lowrance handhelds, now with a crystal clear color display and a 16-channel GPS precision, the Lowrance iFinder H20 C comes with dual processors for higher speed screen updates and scrolling, sporty styling and a sure-grip rubber welt seal. This compact and portable navigation system features a built-in background map, including interstate exit services, of the continental United States and Hawaii. There's also one MMC/SD digital media memory card slot for mapping and recording capabilities, an antenna port for connecting the optional external GPS and WAAS antenna, and an internal back-up memory to keep your important data secure.
Reliable, powerful, and user-friendly, the H20 C features an easy point-and-map process operation for navigation and routing, as well as dual easy and advanced operation modes. lts 2.83-inch, diagonal, color TFT display offers 320 x 240 resolution for optimum readability, and the white LED backlit screen ensures excellent direct sunlight and low-light or night viewing. The H20 C also gives you access to 1,000 waypoints, 1,000 event markers, and 100 routes, as well as up to 100 savable and retraceable plot trails, with up to 10,000 points in any trail. For added trip-planning convenience, you can take advantage of 40 map zoom ranges (0.02 to 4,000 miles) and 63 graphic icons to mark special spots.
Compatible with optional Lowrance FreedomMaps, Fishing Hot Spots Elite, LakeMaster Pro Maps, NauticPath USA, and Navionics electronic charts, the H20 C is waterproof to lPX7 standards, so you can take it wherever you go. Convenient and versatile, it operates up to 14 hours or longer on two 'AA' batteries (not included) and comes with a full one-year warranty.
Testimonials
Average Buyer Rating:

Buyer's feedback: 
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* Cheapest color, but heavily flawed ...
It is the most affordable color handheld GPS. Unfortunately that is it's only major plus. The world basemap has almost no streets [they should have just provided a more detailed North America]. It's supposed to be a marine-oriented unit, but the lack of nautical waypoints and features is upsetting [it has fewer than my non-chart Garmin 72]. Whole islands are missing here in the Florida Keys, an official channel that has been here for decades with markers is marked private with no details, wrecks are identified as "partially submerged" when they are 65 feet below. No tide computation feature [even the Garmin 72 has that]. Pluses are that it updates quickly, has decent battery life, and is relatively easy to use [although it should be simpler -- they took a land-based unit and slapped the "marine" title on it].
Buyer's feedback: 
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Lowrance iFinder H2O
Have used this only a couple of time and it works very well in the areas I have tried. Would buy this product again.