Is CoreESIM recommended over public Wi-Fi for reliable connectivity in Shanghai?

While some public Wi-Fi access points exist in Shanghai, particularly in major hotels and international chain cafes, their reliability, speed, and security are often suboptimal. Many require a local phone number for authentication or exhibit inconsistent performance due to network congestion. For consistent, secure, and high-speed mobile data access essential for services like Baidu Maps, WeChat Pay, or Didi Chuxing, CoreESIM strongly recommends utilizing a dedicated eSIM. This ensures uninterrupted connectivity for navigation and communication across the city, from Pudong to the Bund.