Some phones may have a difficulty while connecting with VivoWatch.
Please refer to the following method.
Method 1: Re-pair VivoWatch with your phone
Tap "Settings" from the APPS
Select "Bluetooth"
Select the device → Tap「Cancle paired」→ Reboot the phone → Paired device as the same way
Method 2: Delete Bluetooth setup files
Tap "Settings" from the APPS → Select "Apps"
Tap the settings icon on the upper right corner and tap "Bluetooth Share"
Select "Clear data" and "Clear cache"→ Restart your smartphone
If you have any issue about the content below, please consult with ASUS Service Center.
