Head-to-head · Japan eSIM Plans
IIJ Japan Travel SIM/Digital vs Holafly Japan eSIM
IIJ Japan Travel SIM/Digital leads on 1 check, Holafly Japan eSIM 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 scoreIIJ Japan Travel SIM/Digital · 8.4/10
IIJ Japan Travel SIM/Digital scores higher on our rubric for japan esim plans: 8.4 against 8.3 out of 10; our editors rank them #7 and #8.
On data type, Holafly Japan eSIM gives you Unlimited where IIJ Japan Travel SIM/Digital offers Fixed. IIJ Japan Travel SIM/Digital leads on validity: 30 days versus 3 days.
IIJ Japan Travel SIM/Digital is the better fit for travelers wanting large data bundles on Docomo LTE. Holafly Japan eSIM is the better fit for travelers who want unlimited data with duration choices.
- IIJ Japan Travel SIM/Digital fits best
Travelers wanting large data bundles on Docomo LTE
- Holafly Japan eSIM fits best
Travelers who want unlimited data with duration choices
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Side by side
| Feature | IIJ Japan Travel SIM/Digital 8.4/10 Visit ↗ | Holafly Japan eSIM 8.3/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.4 | 8.3 |
| Ranking | #7 in Japan eSIM Plans | #8 in Japan eSIM Plans |
| Best for | Travelers wanting large data bundles on Docomo LTE | Travelers who want unlimited data with duration choices |
| Pricing model | Paid | Paid |
| Starting price | Not published | Not published |
| Free plan | — | — |
| Free trial | — | — |
| Deployment | Mobile | Cloud, Mobile |
| Platforms | iOS, Android | Web, iOS, Android |
| Support | Live chat, Phone · 24/7 | Email, Live chat · 24/7 |
| Built for | Solo, Small business | Solo, Small business |
| Features IIJ Japan Travel SIM/Digital 1/1 · Holafly Japan eSIM 1/1 | ||
| Hotspot support | ✓ | ✓ |
| Specs | ||
| Data type | Fixed | Unlimited |
| Data allowance | 3 GB | Unlimited data; hotspot sharing limited to 1 GB per day |
| Validity | 30 days (best) | 3 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 | IIJ Japan Travel SIM/Digital is a prepaid, data-only eSIM for visitors to Japan and temporary returnees who want a fixed data allowance rather than voice or SMS service. Its seven 30-day options range from 3 GB to 55 GB and use Japan-wide… Read the review → |
Holafly Japan eSIM is a prepaid, data-only eSIM for travelers who want mobile data during a Japan trip without choosing a fixed data allowance. Plans offer unlimited data for 3, 5, 7, 10, 15, or 30 days, making it a fit for people who… Read the review → |
Strengths and trade-offs
IIJ Japan Travel SIM/Digital — where it wins
- Seven fixed-data options from 3 GB to 55 GB, each valid for 30 days
- Japan-wide NTT DOCOMO 4G LTE coverage
- Data can be recharged during the usage period
Where it doesn't
- Data-only service; no voice or SMS
- eSIM installation requires online registration after purchase
- Mobile support is limited to iOS and Android
Holafly Japan eSIM — where it wins
- Unlimited mobile data across plans from 3 to 30 days
- Installation by app, QR code, or manual instructions
- KDDI and SoftBank connectivity with 24-hour chat support
Where it doesn't
- Hotspot sharing is limited to 1 GB per day
- Data-only service has no Japanese number for calls or SMS
- Coverage may be weaker in remote areas
- IIJ Japan Travel SIM/Digital8.4/10 · Paid
A data-only Japan eSIM with 3–55 GB bundles and 30-day validity.
Visit IIJFull verdict → - Holafly Japan eSIM8.3/10 · From $11.90
Prepaid Japan eSIM with unlimited data and six duration options.
Visit HolaflyFull verdict →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update