Canon EOS REBEL T7I Basic Instruction Manual page 208

Wi-Fi Connection to an NFC-compatible
Smartphone
NFC-compatible smartphones can be connected via Wi-Fi by
touching them to the camera.
Smartphones labeled with the p mark are NFC-compatible.

Some smartphones are NFC-compatible even if they are not labeled

with the p mark. In such a case, check the NFC antenna position by
referring to the smartphone's instruction manual.
For the smartphone's NFC setting, refer to the smartphone's

instruction manual.
If you do not know whether your smartphone is NFC-compatible,

contact the manufacturer of the smartphone.
A Wi-Fi connection may not be established with the NFC function even if the
smartphone is NFC-compatible. In such a case, establish a Wi-Fi
connection using the procedure in "Connecting to a Smartphone via Wi-Fi
with the <k> Button" (p.W-31).
W-24