Calls can be made without the traditional SIM card. China Unicom won the pilot approval of eSIM's “Double Terminal One†business exclusively. On March 7th, it launched the business in six major cities including Guangzhou and Shenzhen.
The first end product to support this service is Apple's eSIM smart watch Apple Watch S3. The biggest feature is that you don't need to configure a traditional SIM phone card. In terms of function, Apple Watch S3 has a built-in cellular network function, which is equivalent to a mobile phone card, which can directly realize the call, and can also make calls without using a mobile phone, or listen to music, play WeChat and other social applications online.
The emergence of the "one-two terminal" service means that the mobile phone and the Apple Watch S3 can implement a docking call. The waterproof Apple Watch S3 can talk to the iPhone even if it is placed in a fish tank. The heart rate monitoring function of the watch can also be connected to the wireless cell, which brings imagination to other related applications in the future.
What is the difference between esim card and sim card?
1. The E-SIM card is equivalent to being embedded in the mobile phone and does not need to be installed, just like the previous PHS, and the SIM card is a physical card, which needs to be installed in the mobile phone.
2. The E-SIM card is not a true virtual SIM card in a strict sense. Its main significance is that if an E-SIM card device is used, then the user no longer needs to purchase the device and insert the card himself, but directly uses the software registration or direct purchase to use his own carrier network and Package.
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