MoodSIM eSIM Data Plans for Japan

MoodSIM’s Japan eSIM catalog does not contain a truly unlimited data plan. Every plan that carries “Unlimited” in its name is actually limited to a fixed high‑speed allowance (for example, 1 GB per day) after which the speed is throttled to a reduced rate such as 256 Kbps or 1 Mbps.

If you need a larger data pool, MoodSIM offers fixed‑cap plans instead. A 50 GB plan valid for 30 days costs $24.99 USD and a 20 GB plan for 30 days is $12.49 USD. These options provide high‑speed data without the throttling that accompanies the “Unlimited”‑named entries, and may be more cost‑effective for most travelers.

MoodSIM does not provide any Japan eSIM plan that includes a local phone number or SMS capability. All available plans from this provider are data‑only. Travelers can use popular VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection for voice calls and messaging.

MoodSIM offers a total of 91 data plans in Japan, split between single‑country and multi‑country options. Seven‑nine‑something single‑country plans cover Japan alone, while a larger set of 52 multi‑country plans that include Japan remain available. Prices vary from as low as $2.49 up to about $121.99, with data caps ranging from 500 MB to 50 GB and validity periods from one to 365 days. The plans are primarily fixed‑data bundles; no distinct daily‑data‑cap option is listed for this provider.