Compatibility List
QR Code:
All Apple devices running iOS 11 or later will be natively compatible with QR code.
All Android phones have native, 'built-in' QR code readers in the phone camera.
All phones with a camera are compatible with QR codes, however some older phones may require an app for you to scan them.
NFC Reader:
Apple
All phones after 2017
Samsung
All phones after 2014
OnePlus
All phones after 2015
All phones after 2015
Huawei
All phones after 2016
HTC
All phones after 2015
LG
All phones after 2014
Nokia
All phones after 2016