CloudOn eSIM eSIM Data Plans for Japan

CloudOn eSIM does not provide a truly unlimited data plan for Japan. The plans titled “Japan Unlimited” give 3 GB per day and, once that daily limit is reached, the speed is reduced to 1000 kbps. Therefore, they are not unlimited in the sense of offering high‑speed data without limits.

Instead, CloudOn eSIM offers fixed data plans for Japan that give large data allowances without throttling. Examples include the 91日間135GB plan for 91 days at $41.99, the 31日間100GB plan for 31 days at $29.99, the 31日間50GB plan for 31 days at $23.99, and the Japan_50GB_30DAYs plan for 30 days at $39.99. These plans can be more cost‑effective for travelers who need substantial data but do not require unlimited high‑speed usage.

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 16 single‑country plans that cover Japan and an additional 21 multi‑country plans that include Japanese coverage. The prices for these plans vary from US$3.99 to US$99.99 while the data caps range from 500 MB to 135 GB. Some plans are fixed‑data packages, offering a set amount of data for the validity period, while others are daily‑data‑cap plans, allowing a specified amount of data each day. Both types of plans are available across the single‑country and multi‑country options, giving travelers flexibility depending on their data usage needs.