I’ve got a SJCAM which gives excellent clear video, and has anti shake, the sound nd however is rubbish.
I’ve mounted it in a few places on my Aprilia RSVR, best result was stuck to the right hand fairing lower, got some great footage of a few rides round Wales, good being able to see how hard the Ohlins forks work.
I’ve clipped it to my jacket pocket for a couple of rides on the A10, a bit shaken but not bad.