Summary: Battery has a very poor lifespan. Good marine and land GPS so it works well on my boat as well as in my car. Screen is more than big enough for my 28 foot express cruiser. Sometimes the display dims out.
Summary: Can't go wrong with a Garmin product. I received mine with no coastal maps loaded on to it and called Garmin about the issue. They had the maps to me right away and I was ready to go. Their customer service is excellent.
Summary: Got this for my boat 3 years ago and use it in my car too. I interfaced a Garmin echo sounder for depth in my boat and it works great. Very happy with the durability, not much corrosion after from the boat use. Great unit.
Summary: Connect your 478 to your computer via the USB cable. Open Google Earth and click on "tools" then click on "gps", select "garmin" then click on "import". Look in you Google Earth screen and go to "Places" and select one of your "active log" then click on the + sign to get to "path", highlight "path"...
Summary: Outstanding product! Kit contains everything you need for boating and automobile usage and its user friendly converting easily from water to street applications. Large screen with great backlighting making it easy to see while on the water in poor lighting and weather conditions.
Summary: This is a wonderful gps-very accurate. This is the first one I have used and it is very easy to understand. I wish I had read description better-there are no fresh water lakes included. The value is great for this product.
Summary: The 478 is perfect for roads and coastal waters. However, the chip available for additional information regarding inland lakes does not include the Army Corps of Engineers flood control lakes in the Northern PA area.
Summary: Much better than I expected...I wish I had it 2 months earlier. The mapping details are excellent...it has street maps & coastal charts. The screen size, coloring & resolution makes it quick & easy to read at a glance. It is user friendly. It is much more than a GPS.