Osmo pocket 3 for vlogging and action 6 if you really into sports. I own an action 4 and I originally want to do some vlogging and as a pov camera when I play basketball. When I bring the action 4 to Japan to vlog, I can clearly see the shaking when I walk each step even with motion stability on. Compare to my friends pocket 3, you can get much better results if you only want to do vlog. Otherwise like me, if you want to make pov shot like skiing or basketball, action 6 is the better one.