What is eSIM card

eSIM card, namely Embedded-SIM, embedded SIM card. The concept of the eSIM card is to embed the traditional SIM card directly into the device chip, rather than adding it to the device as an independent removable component. Users do not need to insert a physical SIM card, just like the PHS in the early years.

This approach will allow users to choose operator packages more flexibly, or change operators at any time without unlocking the device or purchasing a new device. The establishment of a universal eSIM standard in the future will save more mobile device usage costs for ordinary consumers and enterprise users, and bring more convenience and security.

On March 7, 2018, China Unicom announced that it would officially launch the "eSIM One Dual Terminal" service in six cities: Shanghai, Tianjin, Guangzhou, Shenzhen, Zhengzhou, and Changsha. On May 25, China Mobile IoT officially launched the China Mobile Inside plan for smart IoT, and also released the country's first eSIM chip, providing "chip eSIM connection service."

On March 29, 2019, the national launch of China Unicom’s eSIM independent number service and the launch of China Unicom’s joint first sales cooperation with JD.com were held at China Unicom’s headquarters, hosted by China Unicom and JD.com.

Advantages Introduction

Convenience

Since it is no longer necessary to set up a separate SIM card slot for the device, future adoption eSIM-designed devices will have lighter and thinner bodies, and consumers can switch operators at any time due to cost and operator advantages. For those users with multiple mobile phone numbers, the design of the eSIM card is more attractive because they no longer need multiple mobile phones to switch, and enterprise-level users can also greatly reduce their device purchase costs.

Cost

As consumers can switch carriers more easily, traditional billing methods and long-term contracts have begun to disappear from the market. There are even reports that a company is already developing an application that can help consumers automatically switch operator networks based on tariffs and network speeds.

Travel

Mobile device users no longer need to spend time choosing destination operators when traveling abroad in the future, because eSIM settings can help users avoid sky-high data traffic The bill appears. For example, when the device detects that the user is in another country, its built-in eSIM will automatically switch operator networks. For those large enterprise users who often need to travel abroad and go on business trips, this design is not only very convenient, but also greatly reduces the communication costs between themselves and the enterprise.

Security

Since mobile phones no longer require physical SIM cards, it will no longer be necessary for hackers to find ways to crack stolen mobile phones in the future. For enterprises, they can use eSIM card authentication to allow access to the corporate network, and remotely delete device data if an employee's device is lost through "Mobile Device Management solutions" .

More importantly, the popularity of eSIM cards will prompt mobile operators to pay more attention to their own information and privacy data protection, because consumers in the future will be able to switch operators very easily, so the latter is bound to More effort needs to be spent on real-time information protection and privacy assurance.

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