Canon EOS-1D X Mark III Advanced User's Manual page 517

Note
You can also access Google Play or App Store from QR codes displayed when you
pair the smartphone and camera.
For the operating system versions supported by Camera Connect, refer to the
download site of Camera Connect.
Sample screens and other details in this guide may not match the actual user
interface elements after camera firmware updates or updates to Camera Connect,
Android, or iOS.
Connecting to a Bluetooth-compatible Smartphone via
Wi-Fi
These instructions describe how to establish a Wi-Fi connection with a Bluetooth enabled
smartphone and use Camera Connect to control the camera.
Caution
Bluetooth pairing with a smartphone is not possible while the camera is connected
to other devices via Wi-Fi or connected to a wireless LAN by means of a WFT. End
the Wi-Fi or wireless LAN connection by selecting [Connection settings] in
[Network settings], then selecting [Disconnect].
Steps on the smartphone (1)
Turn on Bluetooth and Wi-Fi from the smartphone settings screen. Note that pairing with the
camera is not possible from the smartphone's Bluetooth settings screen.
Steps on the camera (1)
1.
On the camera, press the < > button.
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