A6. To download and use “iAM Smart” Mobile App, the mobile phone must be equipped with biometric authentication. For iOS mobile phone, it should support Face ID or Touch ID. For Android mobile phone, it should run with Android 8.0 or above and supports Fingerprint authentication. For the best experience using “iAM Smart”, it is recommended to use devices with more recent mobile phone system versions such as iOS 13.0 or above or Android 10.0 or above. Please note that each mobile phone can only be used to bind with one “iAM Smart” account.