If you're looking for a 8" screen with internal antenna, only Lowrance fits the bill. All 7" screens and above in the Humminbird line use external GPS receivers. However, Humminbird offers the best alternative for DI/SI on the trolling motor. Honestly, there are many pros and cons on each brand and it would take a bunch of typing to explain the differences. I would prefer to speak with you and I can offer some ideas based on your needs and what's important to you.

Please give me a call at your convenience.

Brian