There is a sale on the hook 7 by Lowrance right now, there around $299, has downscan and chirp. 7" screen with color. Unit is integrated gps and depth finder. Included is my personal favorite the track back feature which allows you to scroll the cursor back on the depthfinder over the structure and it marks the gps location so you can go back right to the debris or fish you passed. I have the hook 4 and may buy the 7 for the larger screen.