Sony Cyber-shot RX10 III - Manual (Page 212)

The smartphone and the product are connected, and PlayMemories Mobile launches
on the smartphone.
Touch the smartphone to the product for 1-2 seconds until PlayMemories Mobile
launches.
About “NFC”
NFC is a technology that enables short-range wireless communication between various
devices, such as mobile phones or IC tags, etc. NFC makes data communication simpler
with just a touch on the designated touch-point.
NFC (Near Field Communication) is an international standard of short-range wireless
communication technology.
Note
If you cannot make a connection, do as the following:
Launch PlayMemories Mobile on your smartphone, and then move the smartphone slowly toward
the (N mark) of this product.
If the smartphone is in a case, remove it.
If the product is in a case, remove it.
Check whether the NFC function is activated on your smartphone.
When [Airplane Mode] is set to [On], you cannot connect this product and the
smartphone. Set [Airplane Mode] to [Off].
If this product and the smartphone are connected when the product is in playback mode,
the displayed image is sent to the smartphone.
[237] How to Use Using Wi-Fi functions Transferring images to a Smartphone
Send to Smartphone