re: Gopro hero 8 vs 9

Definitely a 9. The 9 accessories are compatible all the way up to the 11. The 8 and its stuff is not compatible. I currently have 2 Hero 11s, one 9 and a Sessions. I had an 8 that I traded for my 9. My 11 batteries are compatible with the 9 not the 8 and earlier. The 9 has better stabilization for sure and better over all video quality. I use my stuff a lot for work as well play and know them pretty well. Wouldn't spend the extra for an 11 because they overheat but are awesome otherwise.