According to XDA Developers, "Quick Share" will work similarly to AirDrop, enabling files to be sent "instantly" between two Galaxy phones in close proximity, so long as both devices have the feature turned on.
Like AirDrop, Galaxy users will be able to restrict who can send them files (Everyone or Contacts Only). When users set Quick Share to Everyone, it's not clear if the service will present unsolicited file shares in the same way as AirDrop.
AirDrop was introduced with iOS 7, so it might surprise some Apple users that Samsung is only getting round to finalizing its own alternative. Android used to have an NFC-based equivalent called Android Beam, but it was discontinued with Android 10. Users have had to resort to third-party alternatives like Google's Files Go app since.
China's big three mobile vendors Xiaomi, Oppo, and Vivo are also working collectively on an AirDrop-style peer-to-peer transfer protocol that is expected to launch next month.
Samsung's Quick Share service is expected to arrive with the launch of Galaxy S20+, which is slated for February 11, with the sharing service likely to come to older Samsung devices later on.
(Via The Verge.)