MoodSIM eSIM Data Plans for Japan

MoodSIM does not offer a truly unlimited data eSIM for Japan. All plans labeled “Unlimited” provide a fixed amount of high‑speed data—for example 1 GB, 2 GB, 5 GB, 10 GB per day—and after that amount the connection is throttled to speeds such as 256 kbps, 384 kbps, 512 kbps or 1 Mbps.

If a higher data allowance is needed, MoodSIM offers fixed‑data plans such as the Japan 50 GB 30 days plan, which delivers 50 GB of high‑speed data for 30 days, or the Japan 20 GB 30 days plan. These plans avoid speed throttling until the data cap is reached and can be more cost‑effective for heavy data users compared to the daily “Unlimited” options.

MoodSIM does not provide a Japan eSIM that includes a phone number or SMS capability. All plans sold by MoodSIM for Japan are data‑only, so travelers will not receive an active phone number for voice calls or text messages. If you need to stay in touch, popular VoIP applications such as WhatsApp, Telegram and iMessage will work over the data connection and let you make calls and send messages without a local phone number.

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.