CloudOn eSIM eSIM Data Plans for Japan

CloudOn eSIM does not provide a true unlimited data plan for Japan. The plans titled “_unlimited” actually offer 2GB of high‑speed data per day and, once the daily allowance is used, the speed drops to 1000kbps. Travelers who need larger high‑speed allowances can instead choose a fixed‑data plan. For example, the Asia 100 GB for 180 days plan delivers 100 GB of 5G data over 180 days, and the Japan 50 GB for 30 days plan provides 50 GB of 5G data for 30 days. Choosing a fixed‑data plan is often more cost‑effective unless a user requires extremely heavy data consumption.

CloudOn eSIM does not provide an eSIM plan for Japan that includes a phone number or SMS capability. All plans offered for Japan are data‑only.

Travelers who need voice or messaging can rely on VoIP applications such as WhatsApp, Telegram, or iMessage, which work over the data connection provided by the eSIM.

CloudOn eSIM provides 11 single‑country data plans for Japan and 15 multi‑country packages that include Japan. Prices range from $3.99 to $177.49, with data caps from 500 MB up to 100 GB and validity periods from three to 180 days. Among the plans, seven are based on a daily data cap while the remaining are fixed data allotments, giving travelers the option to choose between a set amount of data for the entire period or a cap that resets each day.