http://www.techradar.com/news/oculus-go-has-potential-but-it-may-have-trouble-finding-a-home

Facebook unveiled the Oculus Go virtual reality headset at the Oculus Connect 4 conference earlier today, a new standalone device that has no wires and doesn't need a PC or phone to operate. 

That's right: unlike Oculus Rift, you don't need to hook Go up to a pricey PC in order to run VR experiences. You also don't need a phone, like you do with the Samsung Gear VR. Go is a standalone headset, with everything you need contained in one $199 (about £150, AU$255) package.