Can China Mobile open the No.1 dual terminal service?

China mobile users can open the No.1 dual terminal service. Users can apply online through the "How Good" app. The No.1 dual terminal service allows mobile phone numbers to be bound to wearable devices such as smart watches, so that these devices can enjoy the phone bills, traffic packages and call records of the same mobile phone number, so that users can display the same number on both devices, whether they are calling or being called. It should be noted that the auxiliary equipment does not support the short message function, but only supports the data flow function based on the 5G network, and it must be bound with the main SIM card that enables the No.1 dual terminal service. When the main SIM card is separated from the main device, the auxiliary device will automatically turn off the network function.