新华网财经·2025-10-15 01:25Group 1 - The three major telecom operators in China, China Unicom, China Mobile, and China Telecom, have officially received approval to conduct commercial trials for eSIM mobile services [4][5]. - eSIM, or embedded SIM, is integrated directly into the device's chip, eliminating the need for a physical SIM card [6][7]. - eSIM technology reduces the size of the SIM card to only 10% of the traditional SIM card, allowing for better waterproofing and reliability in devices [9]. Group 2 - eSIM offers convenience for users, allowing them to switch numbers online without visiting physical stores, which is referred to as "over-the-air provisioning" [9]. - The integration of eSIM can lower hardware costs, especially for wearable devices, making them more compact and efficient [9]. - Users can easily switch to local carriers while traveling, avoiding the hassle of roaming charges or purchasing local SIM cards [9].