GulfData eSIM Data Plans for Japan

GulfData does not provide a truly unlimited data eSIM for Japan. All plans labeled “Unlimited” in the GulfData catalogue have a data cap of 1 GB, and once that cap is reached the speed drops to 512 kbps. These plans are named “Japan Unlimited – 1 day”, “Japan Unlimited – 5 days”, “Japan Unlimited – 7 days”, “Japan Unlimited – 10 days” and similar global variants.

For travelers who need higher data volumes, GulfData offers fixed‑data plans such as the Japan 50GB – 30 days plan for $34.00 USD and the Japan 20GB – 30 days plan for $16.50 USD. These plans provide a set amount of high‑speed data without any throttling once the allowance is reached. Choosing a fixed data plan may be more cost‑effective unless a user anticipates an extremely heavy data consumption that would exhaust even the highest available data limits.

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.