eSIM · No phone number
Ubigi
A data-only travel eSIM whose destination list includes the US, Japan, China, Hong Kong and Taiwan. It has no number, so use your own SIM for texts.
- Checked October 10, 2026
Where it works
Only the markets where the carrier's own pages say the SIM receives texts or uses data are listed. A market that is missing is one the carrier does not say it works in.
| Market | Receiving texts | Mobile data |
|---|---|---|
| Mainland China | Not offered | Paid for on top |
| Hong Kong & Macau | Not offered | Paid for on top |
| United States | Not offered | Paid for on top |
| Taiwan | Not offered | Paid for on top |
| Japan | Not offered | Paid for on top |
How to keep it working
Ubigi is data only: its terms say it provides no phone number and no calls or SMS, so keep your own SIM for codes and use WhatsApp, FaceTime or similar apps for calls and messages. Its SmartStart feature starts a plan's validity when you arrive in a covered area, and a plan that is not activated within six months of purchase expires. Ubigi sells one-off plans per destination, with unlimited plans in 90+ of them including the USA and Japan, and monthly plans that renew every month and can be cancelled after three months. The eSIM is reusable and can be topped up in the app. USA plans cover Hawaii but not Alaska.
Where this comes from
Compiled from the carrier's own public pages. Open them to check a fact before you rely on it.
- The rule Open the page (cellulardata.ubigi.com) (checked October 10, 2026)
Compiled from each carrier's public pages and checked on the date shown. Rules and prices change without notice, and the carrier's current terms always prevail. General information only, not advice.
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