About Us

COMFYS JAPAN LLC is a Japan-based company dedicated to providing simple, reliable, and scalable connectivity solutions for individuals, travelers, and businesses across Japan. Operating under the brand Japan Sim Data, we focus on making mobile data access easy and accessible—starting with data-only eSIM solutions and expanding into additional internet and connectivity products in the future. Our services are designed for both individual users and bulk buyers, including tourists, travel agencies, companies, and groups that need dependable data connectivity without the complexity of traditional SIM cards, contracts, or in-store visits.

What We Do

We currently provide data-only eSIM solutions that allow customers to get connected quickly and conveniently. Our offerings are built around: Easy online purchase and activation, Compatibility with a wide range of modern devices, Scalable options for individual and bulk requirements, Clear, transparent service without unnecessary extras As our business grows, we plan to introduce additional connectivity products such as Pocket WiFi and other internet solutions to better serve diverse customer needs.

Our Mission

Our mission is to simplify connectivity in Japan by delivering reliable, user-friendly data solutions that work seamlessly for travelers and businesses alike—today and in the future.

Customer Support

We believe strong support is essential. Our team is available 24/7, offering assistance in English and other languages to help with setup, activation, and general inquiries.

Company Information

Company Name: COMFYS JAPAN LLC
Brand: Japan Sim Data
Address: R Cube Aoyama 3rd Floor 1-3-1 Kita-Aoyama, Minato-ku Tokyo 107-0061 Japan
Email: support@japansimdata.com