Turn ON Bluetooth on your smartphone. 2. After installing the Zeroner app on your smartphone, register and log into your account as per the instructions on the screen. 3. Ensure that the smartwatch and smartphone are kept near each other. 4. Click on Device > Watch > Choose “FitShot Axis - XXXX”. 5. Your smartwatch will successfully pair with your smartphone. Note: The device should have at least android 5.0 or iOS 10.0 and above. The watch can only be paired with one smartphone at a time. To pair any other smartphone, please unbind the currently connected smartphone before pairing.