Simbye eSIM Data Plans for Japan

No, Simbye does not provide a truly unlimited data eSIM for Japan. The plans that carry the name “Japan Unlimited” give 2GB per day at full speed and then offer unlimited data at a reduced speed of 1 Mbps, so the high‑speed data is capped at 2GB per day.

Travelers who need more data can choose from fixed data plans such as the 50GB plan valid for 180 days, the 20GB plan valid for 30 days, or the 100GB plan valid for 30 days. These plans offer large data allowances and may be more cost‑effective for heavy data users.

Simbye offers eSIM plans for Japan that include a phone number and SMS capability. The available options are the Worldwide Orange Holiday 20GB, 50GB, and 100GB plans, each valid for 30 days and priced at $31.99 USD, $49.99 USD, and $59.99 USD respectively.

These plans provide a French phone number with dialing code +33. Calls can be received and made (voice inbound and outbound), and SMS can be sent and received (SMS inbound and outbound). The numbers are not local Japanese numbers, so users should confirm with Simbye if a local Japan number is required.

Simbye offers 9 single‑country plans and 8 multi‑country plans for Japan. The plans range from $2.99 to $69.99 and provide between 1 GB and 100 GB of data, with validity periods from 7 to 180 days. Among the options, three plans feature a daily data cap, limiting the amount of data that can be used each day, while fourteen plans offer a fixed data cap that applies to the entire validity period.