eSIM.sm

eSIM.sm is an eSIM provider located in the smallest republic of the world: San Marino. Thanks to our partnerships, we can provide eSIM for all around the world at the cheapest prices. Our customer service is ready to assist you for every configuration issue you may have.

eSIM Japan

eSIM.sm eSIM Data Plans for Japan

1GB 7 days - Japan

1GB

Days

$5.20

$5.20/GB

3GB 30 days - Japan

3GB

Days

$8.80

$2.93/GB

5GB 30 days - Japan

5GB

Days

$13.10

$2.62/GB

10GB 30 days - Japan

10GB

Days

$19.50

$1.95/GB

20GB 30 days - Japan

20GB

Days

$37.10

$1.86/GB

Frequently Asked Questions

Does eSIM.sm offer unlimited data eSIM for Japan?

eSIM.sm does not provide any unlimited data plans for Japan. The available options in Japan are fixed‑data packages, such as a 20‑GB plan valid for 30 days or a 10‑GB plan also valid for 30 days.

Choosing a fixed data plan can be more cost‑effective for most travelers, especially if they are not heavy data users. If a user needs a larger data allowance, they can select one of the higher‑capacity packages; however, the provider does not offer truly unlimited data.

Does eSIM.sm offer Japan eSIM with phone number and SMS?

eSIM.sm does not offer a Japan eSIM that includes a phone number or SMS capability. Only data‑only eSIM plans are available from this provider. Travelers who need voice or text communication can use VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection.

How many data plans does eSIM.sm offer for Japan?

eSIM.sm offers five single‑country plans for Japan and does not provide any multi‑country options. The available packages range in price from roughly $5.20 to $37.10, with data allowances between 1 GB and 20 GB and validity periods spanning 7 to 30 days. Most of the Japanese plans include tethering rights.

Summarized by Gen AI. Last updated: October 23, 2025