Omni Wearables’s FaceShots sunglasses record 1080p/30 fps video. The camera flips forward when you are ready to record, and saves your videos on an onboard micro SD card. It holds at least 1.5 hours of video. The Kickstarter price is $199; the planned retail price is $299.
These sunglasses record ten-second snippet of video at the touch of a button. The upload the video wirelessly to the Snapchat app on your smart phone. This article does not say what the cost.
The Lumix GH5 mirrorless camera is loaded with features for video shooters. It is priced at $1,999, not bad for a professional level DSLR and video camera.
They are, in no particular order of prefence: