SIM卡標準，將重新定義全球智能連接
讓全球連接更輕鬆，打造真正“無界”的智能生活。
★ eSIM 卡無需物理插拔，通過 “空中發卡” 和遠程配置技術即可加載運營商服務，徹底解決傳統 SIM 卡的切換痛點。一方面，用戶跨國出差、更換運營商時，無需頻繁拆卡換卡，可直接在設備端靈活切換存儲的多個運營商配置文件，避免因換卡導致的賬號凍結、登錄失敗；另一方面，其適配安卓、iOS、鴻蒙等多系統，還能通過外掛芯片改造不支持 eSIM 的舊設備，同時覆蓋全球 200 + 國家 / 地區，搭配智能選網算法，讓用戶開機即連穩定網絡，跨境漫遊、設備聯網更省心。
★ eSIM 卡打破傳統 SIM 卡的地域和設備限制，成為全球化連接的核心載體。在 IoT 物聯網領域，覆蓋 100 + 設備類型，以工業級特性支撐智能製造與遠程監控；在車聯網領域，可前裝集成到車輛主控系統（出廠即聯網），也能為已出廠車輛提供後裝方案，支持動態切換本地運營商以滿足跨境法規；在跨境商旅場景，與攜程等 OTA 平台深度對接，用戶預訂機票酒店時可一鍵選購流量包，抵達目的地即連網，真正實現 “無界” 智能生活。
| Over-the-Air Activation | eSIM is a chip built into the device. Users can write the relevant number through over-the-air provisioning to achieve the same network, voice, data and other services as traditional SIM cards without physical card insertion/removal. |
| Remote Provisioning | Supports SIM Remote Provisioning (RSP). After the device leaves the factory, the SIM configuration file can be remotely loaded onto the embedded SIM card in the device from the RSP server through background over-the-air delivery, realizing remote update and subscription. |
| Multi-Operator Switching | eSIM stores one or more operator configuration files, which are compatible with the systems of any operator around the world. Users can flexibly access multiple mobile networks without physically replacing SIM cards, switching operators on demand. |
| Millisecond-level Network Switching | Equipped with seamless cross-operator switching technology, it can achieve millisecond-level switching between different operator networks, ensuring business continuity, which is particularly advantageous in scenarios such as business trips to multiple countries with frequent card changes. By quickly switching networks, it avoids account freezing, login failures and other situations caused by network problems, ensuring users can stably use services in various scenarios. Through actual demonstrations, it can be seen that during the network switching process, users hardly feel any delay, and business operations are not affected, reflecting the high efficiency of this technology. |
 Supports Embedded Type |
Embedded eSIM is directly soldered to the chip without a card slot, enabling the device to be more compact with strong shock resistance, high temperature resistance and waterproof performance. It is suitable for IoT devices with high requirements on volume and stability, such as smart watches and micro-sensors. For example, Yuantong Communication's own eSIM+ solution supports embedded SIM type. |
 Supports Removable Type |
Removable eSIM features flexible usage, easy replacement and maintenance. It can be adjusted at any time according to different devices and usage scenarios, meeting the needs of some devices that require frequent eSIM replacement and providing users with more choices. |
 Supports Multi-aspect Customization |
The dual-mode parallel solution is compatible with various devices such as smart wearables, vehicle-mounted devices and smart home appliances. Whether it is small devices with strict space requirements or devices that need flexible eSIM replacement, a suitable solution can be found. |
| Hardware-level eID Protection | Hardware-level eID provides basic security assurance for eSIM, like a solid line of defense, preventing external illegal intrusion and protecting user identity information security. |
| Software Dynamic Key Collaboration | Software dynamic keys work collaboratively with hardware-level eID, dynamically generating keys according to different scenarios, further enhancing encryption security and flexibility. |
| Collaborative Protection System Effect | The collaborative protection system formed by the combination of the two provides double protection for user data and communication security, effectively resisting various security threats. |
IoT Internet of ThingsConnecting Everything from the Chip. eSIM has covered more than 100 device types such as smart watches, cameras and industrial sensors, with industrial-grade features such as shock resistance and high temperature resistance, adapting to harsh environments, escorting intelligent manufacturing and remote monitoring.
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Connected CarNetwork-connected at the Factory, Easy Activation for Post-installation. In the automobile manufacturing process, eSIM can be directly integrated into the vehicle main control system to realize pre-installed networking; for already shipped vehicles, it also provides plug-and-play post-installation solutions to easily upgrade the networking capabilities of existing vehicle models. Supports dynamic switching of local operators to meet the special requirements of cross-border or regional regulations, realizing more flexible vehicle remote control and data services.
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Mobile Phone & Terminal Device ManufacturersBuilt-in Connectivity, Making Devices More "Intelligent". eSIM has become the preferred configuration for many terminal manufacturers, supporting pre-installation/embedding in mobile phones, tablets, laptops and other devices, allowing consumers to enjoy global network services immediately after purchasing the device. Channel partners can realize bundled sales of eSIM cards and devices, providing more value-added services. Users do not need to remove or replace cards, connect to the network immediately after booting, and enjoy worry-free global roaming.
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Seamless Integration with Travel PlatformsNetwork-connected upon Booking, Free Cross-border Travel. It has supported in-depth API-level docking with mainstream OTA platforms (such as Ctrip, Qunar, etc.). Users can purchase eSIM data packages with one click when booking air tickets and hotels, and connect to the network immediately upon arrival, without waiting, card searching or number changing. Break through regional network restrictions, enjoy high-speed cross-border internet access experience, and maintain service continuity, adapting to global mobile scenarios.
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最新eSIM運營商政策已頒布，傳統SIM卡將會退出歷史舞台。
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空間佔用大 |
傳統Nano - SIM卡雖體積不大，但eSIM卡佔用空間僅有其1/3。如今智能手機螢幕增大，eSIM節省的空間更顯重要，而傳統SIM卡佔用空間的劣勢凸顯。 |
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切換成本高 |
用戶在不同運營商或不同地區使用時，需頻繁更換實體SIM卡。例如多國出差時，頻繁換卡可能導致賬號凍結或登錄失敗，增加了使用成本和不便。 |
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安全風險高 |
傳統SIM卡可從外部隨時取出，一旦手機和SIM卡同時丟失，可能給失主帶來除手機外的其他損失，如他人可利用SIM卡接收短信驗證碼等。 |