- 2.6" TFT
- 1.7GB Memory
- 20 hours Battery Life
- 2 AA batteries (not included); NiMH or Lithium recommended
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Great for Small Boat Use and Geocaching 10/04/2010
This review is from: GARMIN 2.6" GPS Navigation
Lots of marine features and alarms, such as anchor drag alarm, low water depth alarm, (from map depths) Man Overboard function, etc. The coastal marine plots seem fairly good and accurate to the paper chart I have of Upper Chesapeake Bay.
Very fast at screen changes and map scrolling (for a handheld). Has great accuracy with WAAS/Egnos turned on. Fast satellite lock.
Decent screen visibility in bright sunlight.
I was afraid it was going to be large due to the extra long design (to allow it to float on the water). I find it not too large, and it's OK while hiking. It's not too heavy either.
Large onboard memory (~1.6GB?) with ability to add maps also to micro SD card slot.
Has extensive Geocaching functions, although you have to purchase other map software or micro SD cards.
I find the 2 AA battery life is pretty good.
Price kinda high, but the accurate marine charts are worth it. Base maps (on land only--the marine charts are good) are a joke, and optional 100K topo map software are still sparsely populated.
I got my Garmin 78sc a couple of weeks ago, to use not only on the water (Chesapeake Bay), but for hiking and geocaching. By now I've sailed for 3.5 days,(about 18 hours total run-time), before needing to change the alkaline batteries, so I'm fairly satisfied with the battery life. I am now trying NiMH rechargeables, and they seem to last fine, after a 4 hour trip, seems to have plenty of juice left. Always Bring spare batteries sailing.
Also, having the buttons on top of the screen are a little weird, but it's not a big issue in use. It's very fast in finding the satellites and switching display screens, etc. The built in electronic compass (multi-axis)calibrates quickly, and reacts quickly to movement, but seems very accurate. There is an option to have the map orient to either the compass heading (direction you point the GPS) or from the track (direction you were moving in.
Very satisfied with this hand-held marine plotter, as I can use it hiking also (with optional maps).
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