WiFi Direct allows devices to connect and share files directly through WiFi at a range and speed beyond the capabilities of Bluetooth. Common uses of WiFi Direct: 1. Fast file sharing: WiFi Direct is an excellent way to quickly share large files with friends or groups when you can't connect to a wired connection. 2. Screen-casting and screen-sharing: share family photos on your TV or digital portrait, etc. For Nothing Phone, WiFi Direct is key for nearby sharing, screen-casting, etc. It can't handle the file transfer or screencast independently.