Sony DSC-RX100M5 How To Use Manual page 231

4. Return to the "Home" screen and launch PlayMemories Mobile.
[226] How to Use
Calling up an application using [One-touch(NFC)]
You can call up a desired application from the application menu of this product by
touching an NFC-enabled Android smartphone to the product. If the application
you call up has a feature that works with the smartphone, the product and the
smartphone will be connected via Wi-Fi. To use this function, register the desired
application in advance.
1. MENU →
2. Switch this product to shooting mode, then touch an NFC-enabled
smartphone to the
PlayMemories Mobile launches on the smartphone, and the application
you have registered launches on this product.
Using Wi-Fi functions
(Wireless) → [One-touch(NFC)] → desired application.
(N mark) on the product for 1-2 seconds.
Connecting this product and a Smartphone