CloudOn eSIM eSIM Data Plans for Japan

CloudOn eSIM does not provide a true unlimited data eSIM for Japan.
All plans labeled “Unlimited” give a daily cap of 3 GB, after which the connection is throttled to 1000 kbps.

Travelers who need higher data limits can choose from CloudOn’s fixed‑data plans. For example, the 100 GB plan for 31 days, the 135 GB plan for 91 days, the 100 GB plan for 180 days, or the 50 GB plan for 31 days are available for Japan. These plans offer larger data allowances without the daily cap and may be more cost effective for heavy data users.

CloudOn eSIM does not provide an eSIM for Japan that includes a phone number or SMS service. The provider only offers data‑only eSIM plans for the country. Travelers can still use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection; however, some destinations may block or restrict certain apps, so it is advisable to confirm that the services needed will work in Japan before ordering a plan.

CloudOn eSIM provides 17 single‑country data plans that cover only Japan, and 21 multi‑country plans that include Japan. The single‑country offers range from a 500 MB, $3.29 plan to a 27 GB plan around $60, while the multi‑country options go from 500 MB at $3.29 to a 135 GB plan near $126.99. Fixed‑data plans give a set amount of data that does not reset daily, whereas daily‑data plans limit the amount of data each day (up to 5 GB). The overall price spectrum is roughly $3.29 to $126.99, and the data caps span 500 MB to 135 GB.