Head-to-head · Japan eSIM Plans
Yesim vs Saily
Yesim leads on 1 check, Saily on 0, and 2 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreYesim · 8.8/10
Yesim scores higher on our rubric for japan esim plans: 8.8 against 8.7 out of 10; our editors rank them #4 and #5.
Yesim leads on validity: 30 days versus 7 days.
Yesim is the better fit for longer trips needing a 30-day starter bundle. Saily is the better fit for travelers wanting security tools with their data plan.
- Yesim fits best
Longer trips needing a 30-day starter bundle
- Saily fits best
Travelers wanting security tools with their data plan
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Side by side
| Feature | Yesim 8.8/10 Visit ↗ | Saily 8.7/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.8 | 8.7 |
| Ranking | #4 in Japan eSIM Plans | #5 in Japan eSIM Plans |
| Best for | Longer trips needing a 30-day starter bundle | 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 | Email, Docs · 24/7 | Live chat, Email · 24/7 |
| Built for | Solo, Small business | Solo, Small business |
| Features Yesim 1/1 · Saily 1/1 | ||
| Hotspot support | ✓ | ✓ |
| Specs | ||
| Data type | Fixed | Fixed |
| Data allowance | 1 GB | 1 GB |
| Validity | 30 days (best) | 7 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 | Yesim sells prepaid, data-only eSIM plans for travelers in Japan. The 1 GB, 30-day plan is a starter option for a longer trip, while fixed and unlimited data choices let travelers select a different allowance or duration. Plans are… 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
Yesim — where it wins
- 1 GB plan stays valid for 30 days after first network connection
- Fixed and unlimited data options for Japan
- Hotspot support and in-app data and validity tracking
Where it doesn't
- Japan plans are data-only
- Requires an eSIM-compatible phone or tablet
- Mobile data speed depends on provider and location
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
- Yesim8.8/10 · Paid
A Japan-only eSIM with fixed and unlimited data options and hotspot support.
Visit YesimFull 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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All japan eSIM plans comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update