The iPhone Air eliminates the physical SIM slot in favor of eSIM, prompting Chinese carriers to prepare support while highlighting which device models can use eSIM domestically and abroad, and explaining the trade‑offs for travelers.
The article explains the current status of eSIM dual‑device services for Android and Apple smartwatches in China, outlines pricing and usage details, describes the underlying technology and recent security vulnerabilities, and discusses the broader future prospects of eSIM in IoT and telecom.
The article explains what eSIM is, its evolution from traditional SIM cards, Apple’s adoption, the recent suspension of eSIM services by China Mobile, Unicom and Telecom, and discusses potential bugs, security risks, and consumer advice regarding eSIM-enabled wearables.
The Ministry of Industry and Information Technology outlines China’s current eSIM research and promotion efforts, highlights its benefits for devices, and explains regulatory, security, and operator challenges that delay eSIM adoption in smartphones, while noting existing IoT and smartwatch deployments.
Apple plans to remove the physical SIM slot from certain iPhone 14 models in favor of eSIM, citing space savings, design simplification, and future-proofing, while highlighting security concerns, the impact on Chinese consumers, and the broader implications for the smartphone industry.
This week’s tech roundup covers JD’s open‑source federated learning platform, a booming eSIM market, Nasdaq’s cloud migration plan, China’s 5G expansion, AI‑driven deep‑fake legal challenges, an underwater data center with low failure rates, IBM’s open‑source POWER core, a text‑controlled generation model, and a new visual‑dialog AI system.
Tracing centuries of communication—from ancient fire signals and carrier pigeons to 19th‑century telegraphy, 20th‑century mobile networks, and today’s ultra‑small eSIM and virtual SIM technologies—the article explains SIM card architecture, form factors, and their pivotal role in powering modern IoT connectivity.
This article explains the three identifiers in mobile devices, clarifies why traditional number portability doesn't directly apply to IoT SIMs, and shows how eSIM and vSIM technologies enable remote carrier switching for global IoT deployments.
This article explains the architecture of 360's search advertising system, detailing its ad recall, ranking, and display modules, illustrates exact‑match and semantic recall methods with a case study, and reviews the evolution from feature‑engineered GBDT models to deep learning approaches such as DSSM, ESIM, and BERT, including data preparation, training, and performance evaluation.
