Sony DSC-RX100M5 How To Use Manual page 237

The product and the smartphone are connected, and PlayMemories Mobile
automatically launches on the smartphone, and then the displayed image is
sent to the smartphone.
Before you touch the smartphone, cancel the sleep and lock-screen
functions of the smartphone.
The NFC function is available only when the
the product.
Touch the smartphone to the product for 1-2 seconds until PlayMemories
Mobile launches.
To transfer two or more images, select MENU →
to Smartphone] to select images. After the connection enabled screen
appears, use NFC to connect the product and the smartphone.
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
You can select an image size to be sent to the smartphone from [Original],
[2M], or [VGA].
To change the image size, refer to the following steps.
Start PlayMemories Mobile, and change the image size by [Settings] → [Copy Image
Size].
RAW images are converted to JPEG format when they are sent.
(N mark) is displayed on
(Wireless) → [Send