Hi, seems the iphone X is not the ideal pair with the dji pro controller. Due to the touch screen and lack of a home buttonI was thinking about getting an Iphone 7 or 8 to use exclusively with the controller. Of course it would only be used with the controller so wouldnt need cell connection. I do not fly with the cell phone feature, only using it for telemetry. Has anyone else tried this? Is the Iphone 7/8 bright enough to see in bright sun with the brightness turned up? Thanks.