Does anyone know if the Ipad Pro 10.5" will fit on the factory P4 pro remote?
Thanks in advance for the help.

Actually, the maximum size of P4P RC mobile holder is 170mm(9.7 inch, same as iPad Air). I do not think it's a good suggestion to use iPad Pro  10.5".

I have heard it fits but tightly.  Also heard it was EXCELLENT for use.  Nice and bright.  If it doesnt fit you can always pick up an extender on Amazon for around $10.

Nah, I've got both and it doesn't fit.

It fits in my phantom 4 advance transmitter, it also fit in the inspire 1 pro holder. It is a tight fit but i don't see any issues. The iPad pro 10.5 is an animal....

Yes just bought one and it fits snug.  Went from a mini 4 and Wow its huge comparing the view.  Just needed to tightened the screw as the weight of the bigger iPad sagged the bracket.