Head-to-head · Japan eSIM Plans
Airalo vs Ubigi
Airalo leads on 0 checks, Ubigi on 0, and 2 are even. Who comes out ahead on the 2 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreAiralo · 9.3/10
Airalo scores higher on our rubric for japan esim plans: 9.3 against 8.6 out of 10; our editors rank them #1 and #6.
Airalo is the better fit for travelers comparing fixed and unlimited Japan data. Ubigi is the better fit for travelers who value a reusable eSIM across destinations.
- Airalo fits best
Travelers comparing fixed and unlimited Japan data
- Ubigi fits best
Travelers who value a reusable eSIM across destinations
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Side by side
| Feature | Airalo 9.3/10 Visit ↗ | Ubigi 8.6/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.3 | 8.6 |
| Ranking | #1 in Japan eSIM Plans | #6 in Japan eSIM Plans |
| Best for | Travelers comparing fixed and unlimited Japan data | Travelers who value a reusable eSIM across destinations |
| Pricing model | Paid | Paid |
| Starting price | Not published | Not published |
| Free plan | — | — |
| Free trial | — | — |
| Deployment | Cloud, Mobile | Cloud, Mobile |
| Platforms | Web, iOS, Android | Web, iOS, Android, Windows |
| Support | Live chat, Docs · 24/7 | Docs |
| Built for | Solo | Solo, Small business |
| Features Airalo 1/1 · Ubigi 1/1 | ||
| Hotspot support | ✓ | ✓ |
| Specs | ||
| Data type | Fixed | Fixed |
| Data allowance | 1 GB | 1 GB |
| Validity | Not published | 30 days |
| Coverage scope | Japan_only | Japan_only |
| Activation timing | First_connection | First_connection |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | Airalo sells prepaid eSIM data packages for travelers, including Japan-only plans with fixed allowances or unlimited data. The range suits people who want to compare data amounts and validity periods, from a 1 GB option through a 20 GB… Read the review → |
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… Read the review → |
Strengths and trade-offs
Airalo — where it wins
- Choose from six fixed-data allowances and a 10-day unlimited plan
- Track data use and get low-data notifications in the app
- Install before arrival; eligible eSIMs can be topped up
Where it doesn't
- No free plan is available
- Hotspot use depends on device and network support
- Activation policy and validity vary by package
Ubigi — 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
- Airalo9.3/10 · Paid
A broad Japan eSIM lineup with app tracking, low-data alerts, and eligible top-ups.
Visit AiraloFull verdict → - Ubigi8.6/10 · From $4
A $4 Japan plan pairs 1 GB for 30 days with a reusable eSIM and hotspot sharing.
Visit UbigiFull verdict →
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- Orange Travel vs Ubigi
- Vodafone Travel eSIM vs Ubigi
All japan eSIM plans comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update