The best is the DJI Osmo Action (John fishlocker ) uses one .
It seems better than Go-Pro ,
Only negatives seem to be , battery life ( I have a separate power bank)
Use a 128gig card
I bought one for Tracy for her birthday, we are still experimenting with it, still working out the ^ upload _ downloading stuff ‘not got into the editing bit yet so might go and give Jim a shout to get some help