Ubigi
Ubigi: A $4 Japan plan pairs 1 GB for 30 days with a reusable eSIM and hotspot sharing. Ranked #6 of 60 in Japan eSIM Plans by our editors (8.6/10); pricing: From $4; best for travelers who value a reusable eSIM across destinations.
At a glance
- Editor score8.6 / 10
- PricingFrom $4
- Best forTravelers who value a reusable eSIM across destinations
- Free planNo
- Data typeFixed
- Facts checked3 Oct 2026
Where it wins
- Japan 1GB costs $4 once and is valid for 30 days
- Monitor data balance and top up through the app or website
- Share data through smartphone hotspot use
Where it doesn't
- The Japan entry plan includes only 1 GB of fixed data
- Data-only service does not provide traditional calls or SMS
- Requires an unlocked, eSIM-compatible device
Our verdict on Ubigi
Ubigi offers prepaid, data-only eSIM plans for travelers in Japan and other destinations. The Japan 1GB plan costs $4 USD as a one-time purchase and includes 1 GB valid for 30 days. It suits travelers who want a reusable eSIM for plans across destinations and can keep their existing provider for traditional calls and SMS. The eSIM is installed by QR code on an unlocked, eSIM-compatible device, and the plan activates when the device connects in a covered destination.
The Japan plan is a fixed-data bundle rather than a monthly subscription. According to the published Japan plan details, the $4 entry option provides 1 GB for 30 days; plan validity starts upon arrival in a covered destination. The practical trade-off is a clear allowance and period, but a small data bundle may not suit travelers expecting heavy use. Balance monitoring and top-ups through the app or website can help users track and add data as needed.
Ubigi’s reusable eSIM and data sharing are useful for travelers moving between destinations or connecting another device through a smartphone hotspot. The service is available through web, iOS, Android, and Windows, with documentation listed as a support channel. Choose it if a prepaid Japan bundle, hotspot sharing, and reuse across destinations fit your trip. Consider another option if you need traditional calls or SMS from the travel plan, or if 1 GB is not enough and you prefer a Japan plan range with more detail.
Ubigi pricing
All 1 Ubigi plans and prices →
Ubigi fact sheet
| Free plan | No |
|---|---|
| Paid from | Not verified |
| Data type | Fixed |
| Data allowance | 1 GB |
| Validity | 30 days |
| Hotspot support | Yes |
| Coverage scope | Japan_only |
| Activation timing | First_connection |
| Deployment | Cloud, Mobile |
| Platforms | Web, iOS, Android, Windows |
| Support | Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | From $4 (source) |
| Website | ubigi.com |
| Facts checked | 3 Oct 2026 |
Alternatives to Ubigi
- AiraloA broad Japan eSIM lineup with app tracking, low-data alerts, and eligible top-ups.9.3
- Orange TravelA flexible prepaid choice, from a €1 1 GB bundle to larger and unlimited plans.9.1
- Vodafone Travel eSIMJapan data plans range from fixed bundles to unlimited and shared options.9.0
Ubigi vs the competition
- Ubigi vs Airalo
- Ubigi vs Orange Travel
- Ubigi vs Vodafone Travel eSIM
- Ubigi vs Yesim
- Ubigi vs Saily
- Ubigi vs IIJ Japan Travel SIM/Digital
Compare Ubigi with any tool side by side →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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