NFC feature is an interesting function in nRF52 series which can help developers and consumers to extent the device flexibility and accessibility.
Mostly, people knows that the NFC for nRF52 can work for paring work only.
Here Nordic Developer Zone introduced the new features of nRF52 for Type 4 Tag in nRF5 SDK.
Thus, not only used as a standard tag type for storing a web link or a text to launch apps and secure BLE pairing as known as Type 2 Tag. (The library already in nRF5 SDK), but also supports more features which enhance a faster communication and exposing data (known as NFC Type 4 Tag). Thus, nRF52 now can even write data to a tag with an NFC Reader/Writer such as smartphone and used in many secure transactions systems.
For more detail information, you can continue the reading in below which quoted from original post, or simply visit Nordic Developer Zone