Hey jiging, The only one I know of that can easily be used for both with out oroblems is a lowrance XOG. It is rated for both. and weather ready for both. I had a IWAY 250, and it did good but wasnt weather proof. I found out the hard way. You can go to lowrance.com and read up on it. I think they run about 300.00 or so. You can find them on e-bay for less if you watch for it. Hope this helps.