If your plan is to drag it behind the boat, I think you'll be disappointed. That much cable will result in a massive amount of drag so you'll need a lot of weight to hold it down even at trolling speeds. The camera will not stay stable in the water and the constant wave motion of the boat will make it hard to see in general. Bouncing the camera off a rock and scratching or breaking the lens is also a possibility.Underwater cameras are kind of lousy for open water applications in general. I have the Vex FishPhone and had an AquaVu Micro, neither of which i use/ used in more than 20 ft because dealing with that much cable is also a huge pain. I think i brought each of them out on the boat one time before i realized it's more trouble than it's worth. If you're willing to deal with some of that stuff I'm not sure if it really matters which unit you buy. However, for ice fishing, I'd rather leave my boots at home than my cam. I love that the FishPhone lets you take pics and vids right on your phone or tablet for less than half the cost of the closest fixed-screen unit but the fixed screen is more convenient. I don't know if any of that helps but I had high hopes for using the camera out on the boat and quickly realized it's a pain in the a**. Live and learn.