The simplest way to explain what Wi-Fi Direct is to tell you that it is a form of direct, device-to-device communication. Unlike ‘normal’ Wi-Fi, which requires several devices to connect to a centralized device (like a router), Wi-Fi Direct lets users directly connect one device to another (hence the term Direct). The reason for it being termed as Wi-Fi Direct is because it uses the same security protocols as our normal Wi-Fi connections do (WPS and WPA/WPA2).

Wi-Fi Direct can be seen as a sort of second-generation Wi-Fi, as it allows compatible devices which do not have their own internet connection, to establish a mutual connection with ones that do (Hotspots, modems, or routers). Thanks to Wi-Fi Direct, you can build up a wireless network between multiple devices.  In addition, you can use Wi-Fi Direct in combination with Miracast to screencast onto another device with a display. The newest generation of Wi-Fi Direct is also NFC compatible.

Wi-Fi Direct is widely supported by a large pool of devices – most notably smartphones, tablets, laptops, digital cameras, and TVs. The Samsung Galaxy S (launched in 2010) was one of the first smartphones to include this feature, and starting Android 4.0 Ice Cream Sandwich, all Android smartphones have this feature included natively. In case you were wondering, Apple products also support the Wi-Fi Direct feature – except – they have chosen to rebrand it to AirDrop and AirPlay.

In simpler terms, Wi-Fi direct allows devices without their own internet connection to connect to one which does. In the case of Android smartphones and devices, you can connect them and quickly transfer files without the hassle of cables. So, is Wi-Fi Direct just a glorified version of Bluetooth? Well, yes and no. The advantage of using Wi-Fi Direct over Bluetooth is that the Wi-Fi range and transfer speeds are significantly higher than those of Bluetooth. So, in short – use Wi-Fi Direct if you want a better way to send files from one device to another.

As of 2021, the feature is used for a range of applications that range from file sharing and data transfer to screen sharing and even playing games together. Let us take a look at some use cases with examples.

1. File sharing between phones

Sharing large files between smartphones wasn’t very straightforward a few years ago. The only options you had were Bluetooth and cable. While using Bluetooth was OK  when it came to small files, using it to share larger files meant waiting for several minutes (or hours) for the transfer to complete. Data transfers using cables were faster – but then it was cumbersome. With the advent of Wi-Fi Direct, however, large file transfers between smartphones (and even laptops/ computers) have become much easier. To learn how to transfer files using Wi-Fi Direct, please check our next section.

Wi-Fi sharing is also used to quickly move data from an old phone to a new phone while setting it up for the first time.

2. Wireless Printing

Most modern printers support Wi-Fi Direct – thereby enabling them to communicate wirelessly with computers and smartphones and easily handle wireless printing jobs.

3. Playing games and screen-sharing

Other areas where we have seen Wi-Fi Direct being used extensively include offline, close-range smartphone gaming, and screen-sharing. You heard that right. The wireless screen sharing feature supported by your phone comes courtesy of Wi-Fi Direct. There are some games that use the same feature and let users play multiplayer games without the need for an internet connection.

Every Android smartphone that uses Android 4.0 and above has Wi-Fi Direct functionality (bar some very rare exceptions). While the systems’ user interfaces might vary, setting this functionality up is relatively simple and unified across all devices. Wi-Fi Direct, until recently, did not offer native support for file transfers. That no longer is the case, thanks to a newly introduced feature called Nearby Share. Google also has its own app called ‘Files’ that includes a File transfer functionality (which uses Wi-Fi Direct).