I use a Garmin...model? I do not have it in front of me?
Does nav by GPS.
When in nav mode will show heading, speed,depth, and time.
Fish finder... 4 different modes.
Will do a split screen nav & fish.
And will leave a bread crumb trail if you are doubling back in the dark.
It has been dead on for me at all times.
If you go Garmin, the one issue I had out of the box, mine had the default setting set at 300 feet accuracy and I did not know, and ALMOST got in the do-do.
It's now set 10 or 20? feet accuracy.
Not sure if it's still the case, I read they were the only company to map the lake with their equipment.
Real handy at night, peaceful out there and no city lights to do Google Sky Map.
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