Hi @pattdevv54 personally, I own the GoPro Hero 7 Black for all of my hands-free video recordings (backpacking, trail running, and especially rock climbing). It's an amazing piece of gear. I have never used the GoPro Hero 5, so I can't advise you on whether an upgrade is ideal or not, but here is a link to a review by a website that I love that compares the Hero 5 to the Hero 7 (I know you asked about the Hero 8, but I figured this may be helpful nonetheless). This same person has a comparative review between the Hero 7 Black and the Hero 8 black, which may be helpful as well.
If you do decide to upgrade, I know that GoPro is having an awesome deal right now on their website which drops the GoPro Hero 8 Black to $299.99. They are also throwing in an extra battery and memory card with the deal.
Hope this helps!
one or more gifts or other benefits from the co-op.