Japan Data SIM Card Twise – Docomo/ KDDI (Au) Signals Detailed Description:
Japan Travel SIM Card Twise Docomo/KDDI Signal, 3 Days – 30 days: This is a Japanese SIM card that operates on the networks of two of Japan’s three largest carriers: Docomo and KDDI (Au).
Easy to sign up: no passport information is needed, and no contract. We help you to activate the card according to your travel plans at no extra cost. The card is ready to use when you land in Japan, easy and convenient.
Note: This SIM does not support traditional voice calls (You can use 4G data to make calls through apps like Viber/ Zalo/Skype)

Japan Travel SIM Card Twise Docomo/KDDI Signal Speedtest
Internet
Daily Data Packages:
- 5GB/day: Access with 5GB of high-speed data per day. After reaching 5GB, speeds will be reduced to 2G (128 Kbps) until 23:59 PM (Japan time). High-speed data resets daily at 23:59 PM (Japan time).
Mobile hotspot sharing is supported.
Data Plans by Usage:
- 8GB for 8 Days/ 15 Days/ 30 Days: Unlimited internet access with a total of 8GB high-speed data valid for 8 days/ 15 days/ 30 days. After using the 5GB allowance, speeds will be reduced to unlimited 2G (128 Kbps) for the remainder of the plan duration.
- 10GB for 7 Days/ 15 Days/ 30 Days: Unlimited internet access with a total of 10GB high-speed data valid for 7 days/ 15 days/ 30 days.After using the 10GB allowance, speeds will be reduced to unlimited 2G (128 Kbps) for the remainder of the plan duration.
- 15GB for 7 Days/ 15 Days/ 30 Days: Unlimited internet access with a total of 15GB high-speed data valid for 7 days/ 15 days/ 30 days. After using the 15GB allowance, speeds will be reduced to unlimited 2G (128 Kbps) for the remainder of the plan duration.
- 20GB for 7 Days/ 15 Days/ 30 Days: Unlimited internet access with a total of 20GB high-speed data valid for 7 days/ 15 days/ 30 days. After using the 20GB allowance, speeds will be reduced to unlimited 2G (128 Kbps) for the remainder of the plan duration.
- 30GB for 7 Days/ 15 Days/ 30 Days: Unlimited internet access with a total of 30GB high-speed data valid for 7 days/ 15 days/ 30 days. After using the 30GB allowance, speeds will be reduced to unlimited 2G (128 Kbps) for the remainder of the plan duration.
- 50GB for 7 Days/ 15 Days/ 30 Days: Unlimited internet access with a total of 50GB high-speed data valid for 7 days/ 15 days/ 30 days. After using the 50GB allowance, speeds will be reduced to unlimited 2G (128 Kbps) for the remainder of the plan duration.
Mobile hotspot sharing is supported.
*Calling to Vietnam:With an internet connection, you can easily use calling apps like Viber, Skype, or Facebook to make calls to Vietnam at a much lower cost. (Learn more about how much data a Viber call uses.)
Activation
The card is ready to use, please insert the SIM card into a mobile device and open Data Roaming to use when you arrive.
The period of validity of the SIM card you have selected runs from when the SIM card is inserted into a mobile device.
Note:
+ Please do not insert the card in Vietnam, as this may cause card failure.
+ Data roaming is always ON
Extend the card’s duration
Gloka offers a worry-free extension on the period of validity of the SIM card should your stay in Japan be extended. Please contact our customer service 3 days before the plan ends to purchase a top-up.
Note:
- The card can only be extended by Gloka
- Gloka can only provide top-up service for SIM cards we sell
- The minimum top-up period is 3 days.
Terms and Conditions
Please check our Terms and Conditions at this link before placing an order.