[Tokyo] Japan 5G/4G Unlimited Data SIM Card (ChatGPT Supported) Pick up at Japan Airports – au by KDDI

• Access high-speed internet in Japan provide by local telecom au/ KDDI
• You can conveniently pick up the SIM card at Narita, Haneda, Kansai, and Fukuoka airports in Japan.
• Enjoy unlimited high-speed 5G/4G data and up to 30GB of hotspot sharing
  
• Support ChatGPT
  
• See this product for Japan eSIM

—KDDI ranked first in Opensignal's 2025 Global Mobile Network Experience in gaming, voice applications, and network reliability experience—

Access high-speed internet in Japan with this Unlimited 4G/LTE SIM card. Use au by KDDI network, one of the most dependable network, with extensive coverage in Japan. Pick up the au SIM card at the airports in Japan and enjoy the efficient service with no additional data charge (Ideal for ChatGPT/AI Tools).