Ke Ji Ri Bao·2025-10-15 01:32Core Viewpoint - The announcement by China Unicom, China Mobile, and China Telecom regarding the approval for eSIM mobile service trials marks a significant step in the commercial deployment of eSIM technology in China, transitioning from IoT and wearable devices to mobile phones [1] Group 1: eSIM Technology Overview - eSIM, or embedded SIM, integrates the SIM card directly into the device's chip, eliminating the need for a physical SIM card [2] - eSIM technology allows for multiple SIM profiles, providing greater internal space for other components and enhancing waterproof and dustproof capabilities due to the absence of a SIM card slot [2] Group 2: Security Aspects of eSIM - eSIM reduces the risks of loss, theft, or tampering compared to traditional SIM cards, as it is embedded in the device and requires physical damage to remove [3] - The security of eSIM is enhanced through encryption protocols and requires user authorization for activation, making it more difficult to clone or hack compared to traditional SIM cards [3] Group 3: User Experience and Business Operations - Users must visit physical stores to activate eSIM services, as online activation is not yet available [4] - Users can convert existing physical SIM cards to eSIM and manage their eSIM profiles through service providers, with specific procedures for deactivating or transferring eSIM numbers [4]