Roamless eSIM Data Plans for Japan

Roamless does not offer a true unlimited data eSIM for Japan. All available plans have a fixed data cap, the largest of which is 200GB.

If a traveler prefers a fixed‑data plan, Roamless provides several options for Japan. For example, a 200GB plan is available at $490.00 USD, a 150GB plan for $367.50 USD, and a 100GB plan for $245.00 USD, all on 5G networks with tethering allowed. Choosing a fixed‑data plan can be more cost effective for most users unless they are extremely heavy data consumers.

Roamless does not offer any Japan eSIM plans that include a phone number or SMS capability. The provider supplies only data‑only eSIMs for Japan, so travelers cannot receive or make calls through a local phone number or send traditional SMS messages. Instead, users typically rely on data‑based messaging and voice services such as WhatsApp, Telegram, or iMessage to communicate while abroad.

Roamless currently offers 28 single-country data plans specifically for Japan, alongside 12 plans that include Japan as part of a wider multi-country coverage area. These plans range in price from $0.00 to $490.00 and offer data allowances between 525MB and 200GB. Some plans feature a pay-as-you-go option, while others provide a fixed data amount or a validity period ranging up to 30 days. Certain offers may be exclusively for new users, and tethering is generally allowed.