I swear by my Sony HDR-AS20. The main advantage over the GoPro and it’s clones is the image stabilisation. I notice most of the clips above are all avoiding on-bike footage!
I got the camera for £120 and the wrist remote for £80. Shop around, the bargains are out there. The wrist remote has a better wifi signal, is waterproof and when I upgrade the firmware it will enable loop recording!
Other good points:
Fast exposure reaction when moving from dark to light and vice versa.
Good battery life
Will adapt easily to use Gopro mounts
Can be set to record inverted.
Never found image stabalisation an issue on my gopro, but the wider pov tends to reduce the requirement?
Loop recording, think the GP can do that without remote?
Good battery life, my GP has seemed pretty good
Can be set to record inverted, GP can do that but never never really understood the benefit, just rotate it in editor? Contour was better as could rotate lens 90, which has more benefit for mounting options.
Price on sony seems good, tho remote is spendy much like the GP remote. You can chest mount anything with no issues (used my contour on GP chest mount with adaptor, worked really well)