I am interested in using smartphones, in particular, the iPhone X, to shoot a few digital shorts for YouTube. My phone is almost constantly almost always out of storage due to me using it as basically my entire life-hub. Ha ha ha! I use the ProCamera app to shoot video in 24 fps. I'd like to be able to be able to take advantage of the iPhone's camera and the ProCamera app... but send the video directly to an external video storage device. Is this possible?