Posting this as a separate deal as part of the Sony 20% off promotion - Thanks to Dealbot for the original deal
Sony authorised factory seconds with 12m warranty and free shipping.
JB and Sony have the Brand new ones for $299. Personally I have bought factory seconds and refurbished from Sony before and have had no issues.
Key Features
Enhanced Full HD 60p captures crisp, clear images in rich colour
New user interface provides intuitive camera operation
SteadyShotâ„¢ reduces blur three times more effectively
Shoot at desired angle with adjustable FOV and zooming
Waterproof, dustproof and shockproof with included Underwater Housing
I have this and gopro black 6. Actually only paid about this much for a brand new one at heinemann duty free a few years back. The gopro is better in every way other than price (it is significantly more expensive), but the sony is quite capable and produces good footage - better than no name cams, harder to use and less range of mounts though.