Best action cams for recording footage these days?

These are fantastic for the money, they fit in standard gopro everything (basically a copy) and they shoot good footage. I've got one and no complaints - even their app is surprising good - real time connection and viewfinder from your phone. They are also on special at the moment YI Action Camera

 

Here's a review with videos comparing it to a gopro

Also there's this camera that has voice commands

 

I also have a Yi 4K, perfect for a backup or B cam (for footage where microphone feed is not critical as the quality is not so good especially in the waterproof housing)
For me it's better image wise than GoPro 4 Silver (that I also own) and has a better user interface.
The GoPro 5 supposedly has it beat, mine is on order.

 

What did you pay for the Yi 4K and from were? - it does seem good - that video review above was positive - be nice to have the touch screen - I have an older GoPro.

 

I got mine from a local retailer that I trust. should be around USD 199. Amazon is a safe bet (the official USA dealer for Yi). Some versions out there are also Chinese and cannot be changed to English by my understanding so watch where you buy it.