voilà eSIM Data Plans for Japan

voilà does not provide an unlimited data plan for Japan. The available plans offer fixed data allowances: a 50 GB plan for 30 days at $34.90 USD, a 20 GB plan for 30 days at $16.80 USD, and a 10 GB plan for 30 days at $9.60 USD. Choosing a fixed data plan can be more cost‑effective unless a traveler needs extremely high data usage, in which case a larger capacity plan may be preferable.

No, voilà does not provide an eSIM plan for Japan that includes a phone number or SMS capability. The provider offers only data‑only eSIMs in Japan, so travelers will need to rely on Internet‑based services such as WhatsApp, Telegram, or iMessage for voice and messaging. However, some destinations may block or restrict certain VoIP services, so users should confirm that the apps they plan to use are accessible in Japan before purchasing a plan.

Japan has six single‑country data plans and fourteen multi‑country plans that include Japan in their coverage. The single‑country options range from a 1 GB plan priced around $1.40 to a 50 GB plan at roughly $136.30, while the multi‑country plans offer similar data ranges and validities, typically spanning 7 to 90 days. Some options provide a fixed data cap, while others offer daily data limits, allowing users to choose between a set amount of data for the entire validity period or a daily allowance that accumulates over the contract.