If you can turn on the simulator and get the view shown on the box it's not false advertising. Even if you can't get it with the simulator I haven't seen anywhere on the box of any sonar unit that claims you will get the same results shown in the picture.
"Misleading" is a different story, but as far as marketing goes those screenshots on the box are minor league. How about the implication that spraying some AXE under your arms will cause hordes of scantily clad swimsuit models to chase you with lascivious intent, or poppin a woody pill with give you unlimited confidence?
It would be wonderful if what you see is what you get, but not in this world, at least not from any large "successful" business.
You just gonna sit there an argue, or fish?
~Claud Ledbetter~