There are plenty of fancy action cams on the market these days. If you are looking for one to wear around your head right off the bat, the ORDRO EP5 action cam is worth a look. It weighs only 70g, so you can easily wear it anywhere.
This head-cam comes with WiFi and Bluetooth. It has a 850mAh battery that lasts up to 3 hours. It has a 90-degree shooting angle. Costs under $160 at this time.