We use the gopro session 5 and my husband climbs up the backstop to mount it so it makes a great video!
https://youtu.be/YZlSZws9qJ0?t=12m27s
Tons of very good, much cheaper alternatives on Amazon as well. Just search Action Cameras and it will pull them up. I did research before I bought mine, which is around $50, and I am supposed to get it today. I will use it for a week and then get back to you on how it works. It did get 5 stars on Amazon with >200 reviews.