Unicom said eSIM Card One dual-terminal service enables subscribers to open an eSIM attached smart device for cell phone numbers, share phone numbers and packages with cell phones, and enable independent cellular mobile communications, enabling users to stay connected at any time without having to carry a cell phone .
It is understood that the third generation of Apple Watch for the first time using the latest eSIM card technology can be opened through the iPhone self-service watch communications, independent access operator mobile cellular network, support for telephone, Internet and other communications capabilities. A number of carriers worldwide have launched exclusive communications services, the only starting carrier for Apple Watch 3 in China.