Ubigi eSIM plans: dated prices and provider statements

Ubigi lists one row: 1 GB for 30 days in Japan at $4.00. The row names KDDI and NTT Docomo, records hotspot as allowed, and links directly to the plan page read on 2026-09-30.

Ubigi's dated row in USD

The row has one displayed currency and one validity period. Its $4.00 per GB is the listed $4.00 divided by 1 GB. This comparison has no second Ubigi row for a different data amount or destination.

What Ubigi states about using its eSIM

• Hotspot: “The tethering is now working and you can connect several devices to share the Ubigi connectivity.” Read 2026-09-30 in Ubigi's tethering help article. The instructions depend on the device and APN setup.
• Activation: Ubigi's Japan plan page says Smartstart activates the plan on arrival and that the eSIM can be installed by QR code before travel. Read 2026-09-30 on Ubigi's Japan plan page.
• Carrier lock: “We encourage checking your phone`s compatibility and carrier-lock prior to purchase.” Read 2026-09-30 in Ubigi's refund help article.
• Refunds: “The refund of your preloaded eSIM profile is only possible if you have not used any of the data plan(s) that you purchased.” Read 2026-09-30 in Ubigi's refund help article.

What the sources do not confirm

The reviewed sources do not provide a plan-independent voice and SMS statement. This page does not infer one from the data-only row.

Japan and the next checks

Read the Japan comparison and eSIM or physical SIM for the phone and SIM decision. Check your phone's eSIM support before opening Ubigi's plan page. See how the prices are read and dated for the source method.