Head-to-head · Japan eSIM Plans
Airalo vs Saily
Airalo leads on 0 checks, Saily 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 8.7 out of 10; our editors rank them #1 and #5.
Airalo is the better fit for travelers comparing fixed and unlimited Japan data. Saily is the better fit for travelers wanting security tools with their data plan.
- Airalo fits best
Travelers comparing fixed and unlimited Japan data
- Saily fits best
Travelers wanting security tools with their data plan
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Side by side
| Feature | Airalo 9.3/10 Visit ↗ | Saily 8.7/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.3 | 8.7 |
| Ranking | #1 in Japan eSIM Plans | #5 in Japan eSIM Plans |
| Best for | Travelers comparing fixed and unlimited Japan data | Travelers wanting security tools with their data plan |
| 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 |
| Support | Live chat, Docs · 24/7 | Live chat, Email · 24/7 |
| Built for | Solo | Solo, Small business |
| Features Airalo 1/1 · Saily 1/1 | ||
| Hotspot support | ✓ | ✓ |
| Specs | ||
| Data type | Fixed | Fixed |
| Data allowance | 1 GB | 1 GB |
| Validity | Not published | 7 days |
| Coverage scope | Japan_only | Japan_only |
| Activation timing | First_connection | First_connection |
| Our review | ||
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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 → |
Saily sells prepaid eSIM data plans for travelers in Japan, with fixed-data packages and an unlimited option. The plans suit visitors who want mobile data without choosing a local physical SIM, as well as travelers interested in security… 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
Saily — where it wins
- Japan plans range from 1 GB to unlimited data
- Hotspot sharing and in-app top-ups, including optional auto top-up
- Virtual location, ad blocking, and malicious-site protection
Where it doesn't
- Unlimited data slows to up to 1 Mbps after 5 GB per day at full speed
- Requires installing an eSIM and enabling data roaming
- Plan allowances and validity vary by package
- Airalo9.3/10 · Paid
A broad Japan eSIM lineup with app tracking, low-data alerts, and eligible top-ups.
Visit AiraloFull verdict → - Saily8.7/10 · Paid
Prepaid Japan data from 1 GB to unlimited, with hotspot sharing and security features.
Visit SailyFull verdict →
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- Orange Travel vs Saily
- Vodafone Travel eSIM vs Saily
All japan eSIM plans comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update