1. If your Watch is paired with another mobile device, disconnect it first before pairing it with your phone. If you are still unable to pair the Watch, you can try resetting it to factory settings before pairing it again.
2. If the above instructions cannot resolve your issue, press the button on the Watch to enter Settings--System Menu, then click Restart. Or, press and hold the button, then click Restart and check again.
3. To experience the latest firmware features, you can upgrade the firmware to the latest version in the app. To do this, open the app, go to the Device page, and click Device Upgrade.
4. If the above steps do not resolve the issue, press the button on Watch to enter Settings--System Menu. Click Reset. Then, check again to see if the issue is resolved.