Originally published at: http://www.howtogeek.com/178691/htg-explains-what-is-wi-fi-direct-and-how-does-it-work/
More and more new devices are using Wi-Fi Direct. Wi-Fi Direct allows two devices to establish a direct, peer-to-peer Wi-Fi connection without requiring a wireless router. Wi-Fi becomes a way of communicating wirelessly, like Bluetooth.
I'm pretty sure the GoPro Hero 3 cameras use Wi-Fi Direct, too. You can get an app on your smart phone that lets you connect directly to the camera via Wi-Fi and use the phone to see what the camera is seeing, control recording, watch recorded videos, change settings, etc.
Actually, based on what I've seen on the webs, I think the GoPro simply implements a WiFi Access Point, much like the EyeFi card does.
It's also worth nothing that the new XBox One uses WiFi direct for its game pads; that's why the old 360 controllers no longer work on an XB1.
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