MoodSIM eSIM Data Plans for Japan

MoodSIM does not provide a true unlimited high‑speed eSIM plan for Japan. All plans that carry “Unlimited” in their name give a limited data allowance—starting at 500 MB or 1 GB per day—after which the speed drops to a few hundred kilobits per second. These plans are not unlimited in the sense of unlimited data with full‑speed service. For travelers who need more data, fixed‑data plans are available instead. Examples include the Japan 20 GB 30 days plan and the Japan 50 GB 30 days plan, which provide a large, uncapped data allowance for the entire validity period before any speed reductions apply. Choosing one of these fixed data plans is generally more cost‑effective than relying on a plan that only offers a capped amount of high‑speed data.

No, MoodSIM’s Japan eSIM plans do not provide a phone number or SMS capability. The provider only offers data‑only plans for Japan, so travelers can use the internet connection to run VoIP applications such as WhatsApp, Telegram or iMessage for voice calls and messaging, but they should confirm that those services are accessible in Japan beforehand.

MoodSIM provides 41 single‑country plans that cover Japan, and 58 multi‑country plans that include Japan. Most of the plans are fixed‑data amount plans, with data caps ranging from 500 MB up to 50 GB. Prices for these plans fall between roughly $2.49 and $121.99, giving customers a broad range of options for their stay.