GulfData eSIM Data Plans for Japan

GulfData does not provide a truly unlimited data eSIM for Japan. The plans that carry the word “Unlimited” in the name, such as Japan Unlimited – 1 day, 5 days, 7 days, and 10 days, give 1 GB per day at full speed and then throttle usage to 512 kbps once the daily allowance is used. This is a fixed‑data plan with a daily cap, not an unlimited offer.

Instead, GulfData offers fixed data plans that give larger, hard caps. For instance, the Japan 50 GB – 30 days plan costs $34.00 USD and the Japan 50 GB – 180 days plan costs $56.00 USD, both providing the specified data amount for the listed validity period. Another option is the Japan 20 GB – 30 days plan at $16.50 USD. These fixed plans can be more cost‑effective unless a traveler requires truly unlimited high‑speed data.

GulfData does not offer any eSIM plans for Japan that include a phone number or SMS capability. Travelers who need voice or text services will only have access to data‑only plans from this provider.

Those travellers can still use VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection for calls and messaging. However, some destinations restrict or block certain apps, so it is advisable to check that the services you rely on are available in Japan before purchasing a GulfData eSIM.

GulfData offers 12 single‑country plans that cover Japan and 43 multi‑country plans that include Japan. The available plans have prices ranging from $3.00 to $197.50, with data caps that span from 1 GB to 50 GB over validity periods of one to 365 days. Some plans are fixed data‑amount plans, while others provide a daily data cap that lets users pull a set amount of data each day, offering flexibility for different usage patterns.