A:AnswerYes. Per the GoPro Community:
"The Floaty comes with a solid backdoor that can be attached to the HERO5's mounting frame. That door an be swapped out with the current door on the frame, which has an opening in the back.
There's no need to buy the Super Suit to use the Floaty, and you definitely don't want to attach the Floaty directly to the camera's display screen as you probably won't be able to get it off."
