I have the Phantom 1.1.1 and I have been slowly upgrading it. I have been looking into FPV setups for it but they all seem pretty expensive. I do already have a Gopro Hero 4 Black so I could use that as my camera if possible to reduce cost. I also don't mind using my phone (Note 4) as a display. Unless there are some goggles available for under $50. So I guess my question is... Is there a way to create a FPV setup with a Gopro Hero 4 Black and a Smartphone while keeping the cost low? What parts would I need, where to buy them, ect. Thanks in advance guys!