Samsung
Send a File via Wi-Fi Direct auf Samsung
Bluetooth transfers files at a fixed, comparatively low speed and require pairing before anything moves. Wi-Fi Direct on Samsung phones creates a direct peer-to-peer connection between two devices without a router, which is why it handles large files or many photos at once much faster.
The feature sits inside the share sheet of the app you are sending from, not in a separate settings menu. Any app that offers a Share option, such as Gallery or My Files, can use it once Wi-Fi Direct is selected as the target.
How to send a file
Open the app that holds the file, for example Gallery, then select the item and tap Open the App ➔ Tap on Share ➔ Choose Wi-Fi Direct.
Your phone scans for nearby compatible devices with Wi-Fi Direct active. Tap the target device with Tap on Device you want, then confirm the transfer with Confirm with Share.
The receiving device gets a prompt to accept the incoming file. Once accepted, the transfer starts immediately without any manual pairing step.
If the target device does not appear in the list, Wi-Fi must be turned on on both phones and Wi-Fi Direct visibility should not be blocked by a battery saver or a VPN that restricts local network discovery. For sending to a laptop or a device without Wi-Fi Direct support, a cable or a cloud upload is the more reliable option.