What is Wi-Fi Direct and how do you use it?
(Android Central)

Best answer: Wi-Fi Direct is a peer-to-peer Wi-Fi connection between devices that enables faster data transfer than Bluetooth with lower latency than Wi-Fi through a router. You can use it on Android with the Cast Screen feature on certain devices and the Nearby Share file-sharing feature. Wi-Fi Direct moves data faster with lower latency Wi-Fi Direct works a lot like a standard Wi-Fi connection except that instead of connecting to a router, it allows devices to connect directly to one another. This will enable you to connect without needing to be within range of a Wi-Fi access point. In addition, this direct connection allows a higher transfer rate and lower latency. One way this tech has been implemented on Android is with the Nearby Share feature. Nearby Share allows Android devices to send files to one another quickly and securely. This is more important than ever as file sizes grow with 4K and HDR technology, especially for videos. Sharing on your Android phone, you can sele...