Can I reliably depend on public Wi-Fi in Tokyo, or is a CoreESIM indispensable?

While Tokyo offers some public Wi-Fi in locations such as major train stations, cafes, and tourist information centers, its dependability is often inconsistent. Connection speeds can vary, and many networks require complex registration processes, often in Japanese. For consistent, secure, and high-speed internet access essential for real-time navigation, translation apps, and ride-sharing services across Tokyo, a CoreESIM is a far more reliable and convenient solution, ensuring uninterrupted connectivity throughout your visit.