i need some help deciding between two depth finders. I am looking at the Lowrance hook 2 4x for $120 at bass pro and the hummingbird helix 5 di g2 for $249. We boat on Illinois river and depth finder is essential, I fish for catfish about 5 times a yr so fish finder features aren’t my deciding factor. I got to play w the hummingbird and I like the structure view, does the 4x have that? Also any other tips and info would be cool. Oh last note, I have a $100 gift card so it either costs me $20 or $150! Thanks