Quick Tip - Should you buy a low cost action camera?

I compare a $22 Jadfezy, a $50 SJCAM, and a GoPro action camera.
Is it worth it to buy a low cost entry level camera?
Is a $50 action camera better than a $20 one?
In case you don't want to watch the whole video and just hear my answer...don't waste your money on a low cost entry level camera.