I have a depth finder that I am happy with and I had a old gps unit with maps that I liked. They were two separate units and that is what I have used for years. My GPS went bad and will not even turn on anymore. The way I see it I have three options:

1. I can buy a combo unit

2. I can buy a marine GPS unit

3. I have heard about a GPS marine app for my phone

Most of my fishing is crappie in Jordan, Harris and I want to try Falls. I use the GPS for trolling speed when pulling cranks. I also use it to mark way points and keep from getting lost when fishing grass beds and channels at the coast for Trout and Reds.

Any Ideas?