MicroEsim eSIM Data Plans for Japan

MicroEsim does offer unlimited data eSIM plans for Japan. The unlimited options are available for a range of validity periods, from 1 day up to 19 days, with prices that start at $2.13 USD for a 1‑day plan and go up to $57.05 USD for a 19‑day plan. All of these plans are marked as unlimited in the data, and they allow tethering. The maximum advertised speed for most unlimited plans is 5 Mbps, but the provider notes that speeds may be throttled after heavy use, which is the Fair Usage Policy (FUP). Travelers who want to know the amount of data that remains at normal speed or who have questions about possible throttling should contact MicroEsim directly to confirm the details of the FUP and typical bandwidth available while using these unlimited plans.

MicroEsim does not provide a Japan eSIM plan that includes a phone number or SMS capability. Only data‑only eSIMs are available from this provider for Japan. Travelers can still use popular VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection to make calls and send messages without a local phone number.

MicroEsim offers 136 single‑country plans that cover Japan, along with 97 multi‑country plans that include Japan. The single‑country offerings range in price from $0.81 to $165.24 and provide data caps from 500 MB up to unlimited, with validity periods of one to 60 days. The multi‑country plans follow the same price and data ranges but are available in both fixed‑data and daily‑cap formats, allowing a traveler to choose a plan that best fits a day‑by‑day usage pattern. Several plans also permit tethering and include speed‑tier options such as reduced speed at 128, 200, 256, 384, or 5000 kB/s and a throttled speed option.