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✓ Prices checked 07.10.2026
Best eSIM for Japan in 2026
Every prepaid eSIM plan for Japan from every major provider, ranked by the same formulas — $/GB, $/day and fair-use fine print decoded.
Quick verdict
Which Japan eSIM is best for your trip?
The best Japan eSIM depends on how you travel. Three picks computed from all 211 plans we track — prices checked 07.10.2026.
Roami
1GB / 3 Days — $1.99 ($0.66/day)
aloSIM
50GB / 10 Days — $27.50 ($0.55/GB)
Ubigi
1GB / 30 Days — $4.00 ($0.13/day)
The full database
All Japan eSIM plans compared
| Provider | Plan | Data | Validity | Price | $/day | $/GB | Network | Link |
|---|---|---|---|---|---|---|---|---|
|
aloSIM
Best value
|
50GB / 10 Days | 50GB | 10 days | $27.50 | $2.75 | $0.55 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
50GB / 15 Days | 50GB | 15 days | $30.00 | $2.00 | $0.60 | NTT Docomo, SoftBank, KDDI | View plan |
Roamic
|
Japan eSIM 50GB / 30 Days | 50GB | 30 days | $33.00 | $1.10 | $0.66 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
50GB / 30 Days | 50GB | 30 days | $34.50 | $1.15 | $0.69 | NTT Docomo, SoftBank, KDDI | View plan |
Nomad
|
Local Japan - 30 Days - 50 GB | 50GB | 30 days | $35.00 | $1.17 | $0.70 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM 20GB / 30 Days | 20GB | 30 days | $15.00 | $0.50 | $0.75 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
50GB / 30 Days | 50GB | 30 days | $37.99 | $1.27 | $0.76 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
20GB / 7 Days | 20GB | 7 days | $16.99 | $2.43 | $0.85 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
30GB / 15 Days | 30GB | 15 days | $25.99 | $1.73 | $0.87 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
30GB / 30 Days | 30GB | 30 days | $25.99 | $0.87 | $0.87 | NTT Docomo, SoftBank, KDDI | View plan |
Jetpac
|
Japan 40GB | 40GB | 30 days | $34.99 | $1.17 | $0.87 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
10GB / 3 Days | 10GB | 3 days | $8.99 | $3.00 | $0.90 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
20GB / 15 Days | 20GB | 15 days | $17.99 | $1.20 | $0.90 | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan 10GB | 10GB | 1 days | $9.00 | $9.00 | $0.90 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM 10GB / 30 Days | 10GB | 30 days | $9.00 | $0.30 | $0.90 | NTT Docomo, SoftBank, KDDI | View plan |
|
Ubigi
|
20GB / 30 Days | 20GB | 30 days | $18.00 | $0.60 | $0.90 | NTT Docomo, SoftBank, KDDI | View plan |
|
Ubigi
Most data
|
60GB / 365 Days | 60GB | 365 days | $55.00 | $0.15 | $0.92 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
3GB / 3 Days | 3GB | 3 days | $2.99 | $1.00 | $1.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
10GB / 7 Days | 10GB | 7 days | $9.99 | $1.43 | $1.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan 30GB | 30GB | 30 days | $29.99 | $1.00 | $1.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM 3GB / 14 Days | 3GB | 14 days | $3.00 | $0.21 | $1.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM 5GB / 21 Days | 5GB | 21 days | $5.00 | $0.24 | $1.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
20GB / 30 Days | 20GB | 30 days | $20.99 | $0.70 | $1.05 | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan 15GB | 15GB | 7 days | $16.00 | $2.29 | $1.07 | NTT Docomo, SoftBank, KDDI | View plan |
|
Ubigi
Most data
|
60GB / 30 Days | 60GB | 30 days | $65.00 | $2.17 | $1.08 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
10GB / 15 Days | 10GB | 15 days | $10.99 | $0.73 | $1.10 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
20GB / 7 Days | 20GB | 7 days | $22.00 | $3.14 | $1.10 | NTT Docomo, SoftBank, KDDI | View plan |
|
Ubigi
|
50GB / 30 Days | 50GB | 30 days | $55.00 | $1.83 | $1.10 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
20GB / 10 Days | 20GB | 10 days | $23.00 | $2.30 | $1.15 | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan 10GB | 10GB | 4 days | $11.50 | $2.88 | $1.15 | NTT Docomo, SoftBank, KDDI | View plan |
|
Nomad
|
Local Japan - 30 Days - 20 GB | 20GB | 30 days | $23.00 | $0.77 | $1.15 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
5GB / 3 Days | 5GB | 3 days | $5.99 | $2.00 | $1.20 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
5GB / 7 Days | 5GB | 7 days | $5.99 | $0.86 | $1.20 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
10GB / 30 Days | 10GB | 30 days | $11.99 | $0.40 | $1.20 | NTT Docomo, SoftBank, KDDI | View plan |
Airalo
|
Moshi Moshi - 20 GB | 20GB | 15 days | $24.00 | $1.60 | $1.20 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
20GB / 15 Days | 20GB | 15 days | $24.00 | $1.60 | $1.20 | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan 5GB | 5GB | 1 days | $6.00 | $6.00 | $1.20 | NTT Docomo, SoftBank, KDDI | View plan |
Yesim
|
30GB / 30 Days | 30GB | 30 days | $37.42 | $1.25 | $1.25 | NTT Docomo, SoftBank, KDDI | View plan |
Saily
|
Japan 20GB 30 days | 20GB | 30 days | $24.99 | $0.83 | $1.25 | NTT Docomo, SoftBank, KDDI | View plan |
|
Airalo
|
Moshi Moshi - 20 GB | 20GB | 30 days | $25.00 | $0.83 | $1.25 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
20GB / 30 Days | 20GB | 30 days | $25.00 | $0.83 | $1.25 | NTT Docomo, SoftBank, KDDI | View plan |
|
Ubigi
|
25GB / 30 Days | 25GB | 30 days | $32.00 | $1.07 | $1.28 | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan 10GB | 10GB | 7 days | $13.00 | $1.86 | $1.30 | NTT Docomo, SoftBank, KDDI | View plan |
|
Ubigi
|
30GB / 15 Days | 30GB | 15 days | $39.00 | $2.60 | $1.30 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
3GB / 7 Days | 3GB | 7 days | $3.99 | $0.57 | $1.33 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
5GB / 15 Days | 5GB | 15 days | $6.99 | $0.47 | $1.40 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
5GB / 3 Days | 5GB | 3 days | $7.00 | $2.33 | $1.40 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
5GB / 5 Days | 5GB | 5 days | $7.00 | $1.40 | $1.40 | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan 5GB | 5GB | 4 days | $7.00 | $1.75 | $1.40 | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan 15GB | 15GB | 30 days | $21.00 | $0.70 | $1.40 | NTT Docomo, SoftBank, KDDI | View plan |
|
Ubigi
|
10GB / 7 Days | 10GB | 7 days | $14.00 | $2.00 | $1.40 | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
20GB / 30 Days | 20GB | 30 days | $28.12 | $0.94 | $1.41 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
3GB / 1 Day | 3GB | 1 days | $4.50 | $4.50 | $1.50 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
10GB / 5 Days | 10GB | 5 days | $15.00 | $3.00 | $1.50 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
5GB / 30 Days | 5GB | 30 days | $7.99 | $0.27 | $1.60 | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan 5GB | 5GB | 7 days | $8.00 | $1.14 | $1.60 | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan 10GB | 10GB | 30 days | $16.00 | $0.53 | $1.60 | NTT Docomo, SoftBank, KDDI | View plan |
|
Nomad
|
Japan 10 GB 30 Days | 10GB | 30 days | $16.00 | $0.53 | $1.60 | NTT Docomo, SoftBank, KDDI | View plan |
|
Ubigi
|
5GB / 30 Days | 5GB | 30 days | $8.00 | $0.27 | $1.60 | NTT Docomo, SoftBank, KDDI | View plan |
|
Ubigi
|
10GB / 30 Days | 10GB | 30 days | $16.50 | $0.55 | $1.65 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
3GB / 15 Days | 3GB | 15 days | $4.99 | $0.33 | $1.66 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
3GB / 1 Day | 3GB | 1 days | $5.00 | $5.00 | $1.67 | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan 3GB | 3GB | 1 days | $5.00 | $5.00 | $1.67 | NTT Docomo, SoftBank, KDDI | View plan |
|
Airalo
|
Moshi Moshi - 10 GB | 10GB | 7 days | $17.00 | $2.43 | $1.70 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
10GB / 7 Days | 10GB | 7 days | $17.00 | $2.43 | $1.70 | NTT Docomo, SoftBank, KDDI | View plan |
|
Airalo
|
Moshi Moshi - 10 GB | 10GB | 15 days | $17.50 | $1.17 | $1.75 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
10GB / 10 Days | 10GB | 10 days | $17.50 | $1.75 | $1.75 | NTT Docomo, SoftBank, KDDI | View plan |
|
Saily
|
Japan 10GB 30 days | 10GB | 30 days | $17.99 | $0.60 | $1.80 | NTT Docomo, SoftBank, KDDI | View plan |
|
Airalo
|
Moshi Moshi - 10 GB | 10GB | 30 days | $18.00 | $0.60 | $1.80 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
10GB / 30 Days | 10GB | 30 days | $18.00 | $0.60 | $1.80 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
10GB / 15 Days | 10GB | 15 days | $18.00 | $1.20 | $1.80 | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
10GB / 30 Days | 10GB | 30 days | $18.14 | $0.60 | $1.81 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
5GB / 7 Days | 5GB | 7 days | $9.50 | $1.36 | $1.90 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
Cheapest
|
1GB / 3 Days | 1GB | 3 days | $1.99 | $0.66 | $1.99 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
Cheapest
|
1GB / 7 Days | 1GB | 7 days | $1.99 | $0.28 | $1.99 | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
5GB / 30 Days | 5GB | 30 days | $9.98 | $0.33 | $2.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
3GB / 30 Days | 3GB | 30 days | $5.99 | $0.20 | $2.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
Airalo
|
Moshi Moshi - 5 GB | 5GB | 7 days | $10.00 | $1.43 | $2.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
5GB / 10 Days | 5GB | 10 days | $10.00 | $1.00 | $2.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan 3GB | 3GB | 4 days | $6.00 | $1.50 | $2.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan 5GB | 5GB | 30 days | $10.00 | $0.33 | $2.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan 20GB | 20GB | 30 days | $40.00 | $1.33 | $2.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
Nomad
|
Japan 5 GB 30 Days | 5GB | 30 days | $10.00 | $0.33 | $2.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM 1GB / 7 Days | 1GB | 7 days | $2.00 | $0.29 | $2.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
Ubigi
|
5GB / 15 Days | 5GB | 15 days | $10.00 | $0.67 | $2.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
Airalo
|
Moshi Moshi - 5 GB | 5GB | 15 days | $10.50 | $0.70 | $2.10 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
5GB / 15 Days | 5GB | 15 days | $10.50 | $0.70 | $2.10 | NTT Docomo, SoftBank, KDDI | View plan |
|
Saily
|
Japan 5GB 30 days | 5GB | 30 days | $10.99 | $0.37 | $2.20 | NTT Docomo, SoftBank, KDDI | View plan |
|
Airalo
|
Moshi Moshi - 5 GB | 5GB | 30 days | $11.00 | $0.37 | $2.20 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
5GB / 30 Days | 5GB | 30 days | $11.00 | $0.37 | $2.20 | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan 3GB | 3GB | 7 days | $7.00 | $1.00 | $2.33 | NTT Docomo, SoftBank, KDDI | View plan |
|
Nomad
|
Japan 3 GB 30 Days | 3GB | 30 days | $7.00 | $0.23 | $2.33 | NTT Docomo, SoftBank, KDDI | View plan |
|
Airalo
|
Moshi Moshi - 3 GB | 3GB | 3 days | $7.50 | $2.50 | $2.50 | NTT Docomo, SoftBank, KDDI | View plan |
|
Ubigi
|
3GB / 15 Days | 3GB | 15 days | $7.50 | $0.50 | $2.50 | NTT Docomo, SoftBank, KDDI | View plan |
|
Saily
|
Japan 3GB 30 days | 3GB | 30 days | $7.99 | $0.27 | $2.66 | NTT Docomo, SoftBank, KDDI | View plan |
|
Airalo
|
Moshi Moshi - 3 GB | 3GB | 7 days | $8.00 | $1.14 | $2.67 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
3GB / 30 Days | 3GB | 30 days | $8.00 | $0.27 | $2.67 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
2GB / 15 Days | 2GB | 15 days | $6.50 | $0.43 | $3.25 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
1GB / 1 Day | 1GB | 1 days | $3.50 | $3.50 | $3.50 | NTT Docomo, SoftBank, KDDI | View plan |
|
Ubigi
|
1GB / 3 Days | 1GB | 3 days | $3.50 | $1.17 | $3.50 | NTT Docomo, SoftBank, KDDI | View plan |
|
Saily
|
Japan 1GB 7 days | 1GB | 7 days | $3.99 | $0.57 | $3.99 | NTT Docomo, SoftBank, KDDI | View plan |
|
Airalo
|
Moshi Moshi - 1 GB | 1GB | 3 days | $4.00 | $1.33 | $4.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
1GB / 3 Days | 1GB | 3 days | $4.00 | $1.33 | $4.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
Nomad
|
Japan 1 GB 7 Days | 1GB | 7 days | $4.00 | $0.57 | $4.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
Ubigi
|
1GB / 30 Days | 1GB | 30 days | $4.00 | $0.13 | $4.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
1GB / 30 Days | 1GB | 30 days | $4.20 | $0.14 | $4.20 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
1GB / 7 Days | 1GB | 7 days | $4.50 | $0.64 | $4.50 | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
1GB / 5 Days | 1GB | 5 days | $4.50 | $0.90 | $4.50 | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan 1GB | 1GB | 4 days | $7.00 | $1.75 | $7.00 | NTT Docomo, SoftBank, KDDI | View plan |
|
Airalo
|
Moshi Moshi - Unlimited | Unlimited | 3 days | $11.50 | $3.83 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Airalo
|
Moshi Moshi - Unlimited | Unlimited | 5 days | $17.00 | $3.40 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Airalo
|
Moshi Moshi - Unlimited | Unlimited | 7 days | $26.50 | $3.79 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Airalo
|
Moshi Moshi - Unlimited | Unlimited | 10 days | $34.50 | $3.45 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Airalo
|
Moshi Moshi - Unlimited | Unlimited | 15 days | $48.00 | $3.20 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Airalo
|
Moshi Moshi - Unlimited | Unlimited | 30 days | $69.00 | $2.30 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
Unlimited / 3 Days | Unlimited | 3 days | $11.50 | $3.83 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
Unlimited / 5 Days | Unlimited | 5 days | $19.50 | $3.90 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
Unlimited / 7 Days | Unlimited | 7 days | $27.00 | $3.86 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
Unlimited / 10 Days | Unlimited | 10 days | $35.00 | $3.50 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
Unlimited / 15 Days | Unlimited | 15 days | $49.00 | $3.27 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
aloSIM
|
Unlimited / 30 Days | Unlimited | 30 days | $74.00 | $2.47 | — | NTT Docomo, SoftBank, KDDI | View plan |
Holafly
|
Unlimited / 3 Days | Unlimited | 3 days | $11.90 | $3.97 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Holafly
|
Unlimited / 5 Days | Unlimited | 5 days | $20.50 | $4.10 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Holafly
|
Unlimited / 7 Days | Unlimited | 7 days | $27.50 | $3.93 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Holafly
|
Unlimited / 10 Days | Unlimited | 10 days | $36.50 | $3.65 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Holafly
|
Unlimited / 15 Days | Unlimited | 15 days | $50.50 | $3.37 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Holafly
|
Unlimited / 30 Days | Unlimited | 30 days | $73.90 | $2.46 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan (Unlimited 3 days) | Unlimited | 3 days | $10.99 | $3.66 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan (Unlimited 5 days) | Unlimited | 5 days | $16.99 | $3.40 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan Unlimited-7 Days | Unlimited | 7 days | $25.99 | $3.71 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan Unlimited-10 Days | Unlimited | 10 days | $33.99 | $3.40 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan (Unlimited 15 days) | Unlimited | 15 days | $41.99 | $2.80 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan (Unlimited 21 days) | Unlimited | 21 days | $49.99 | $2.38 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Jetpac
|
Japan (Unlimited 30 days) | Unlimited | 30 days | $65.99 | $2.20 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Nomad
|
Local Japan - 3 Days - unlimited | Unlimited | 3 days | $11.00 | $3.67 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Nomad
|
Local Japan - 7 Days - unlimited | Unlimited | 7 days | $25.00 | $3.57 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Nomad
|
Local Japan - 14 Days - unlimited | Unlimited | 14 days | $41.00 | $2.93 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Nomad
|
Local Japan - 21 Days - unlimited | Unlimited | 21 days | $49.00 | $2.33 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
Unlimited / 3 Days | Unlimited | 3 days | $9.99 | $3.33 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
Unlimited / 7 Days | Unlimited | 7 days | $18.99 | $2.71 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
Unlimited / 15 Days | Unlimited | 15 days | $42.99 | $2.87 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roami
|
Unlimited / 30 Days | Unlimited | 30 days | $71.99 | $2.40 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 1 Day | Unlimited | 1 days | $3.00 | $3.00 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 2 Days | Unlimited | 2 days | $6.00 | $3.00 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 3 Days | Unlimited | 3 days | $9.00 | $3.00 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 4 Days | Unlimited | 4 days | $11.00 | $2.75 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 5 Days | Unlimited | 5 days | $14.00 | $2.80 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 6 Days | Unlimited | 6 days | $16.00 | $2.67 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 7 Days | Unlimited | 7 days | $18.00 | $2.57 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 8 Days | Unlimited | 8 days | $19.00 | $2.38 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 9 Days | Unlimited | 9 days | $22.00 | $2.44 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 10 Days | Unlimited | 10 days | $23.00 | $2.30 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 11 Days | Unlimited | 11 days | $25.00 | $2.27 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 12 Days | Unlimited | 12 days | $27.00 | $2.25 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 13 Days | Unlimited | 13 days | $29.00 | $2.23 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 14 Days | Unlimited | 14 days | $30.00 | $2.14 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 16 Days | Unlimited | 16 days | $32.00 | $2.00 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 15 Days | Unlimited | 15 days | $32.00 | $2.13 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 17 Days | Unlimited | 17 days | $34.00 | $2.00 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 18 Days | Unlimited | 18 days | $35.00 | $1.94 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 19 Days | Unlimited | 19 days | $36.00 | $1.89 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 20 Days | Unlimited | 20 days | $37.00 | $1.85 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 21 Days | Unlimited | 21 days | $39.00 | $1.86 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 23 Days | Unlimited | 23 days | $40.00 | $1.74 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 22 Days | Unlimited | 22 days | $40.00 | $1.82 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 24 Days | Unlimited | 24 days | $41.00 | $1.71 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 26 Days | Unlimited | 26 days | $42.00 | $1.62 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 25 Days | Unlimited | 25 days | $42.00 | $1.68 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 27 Days | Unlimited | 27 days | $43.00 | $1.59 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 28 Days | Unlimited | 28 days | $44.00 | $1.57 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 29 Days | Unlimited | 29 days | $45.00 | $1.55 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Roamic
|
Japan eSIM Unlimited Data / 30 Days | Unlimited | 30 days | $46.00 | $1.53 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Saily
|
Japan UNLIMITED 5 days | Unlimited | 5 days | $18.99 | $3.80 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Saily
|
Japan UNLIMITED 7 days | Unlimited | 7 days | $28.99 | $4.14 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Saily
|
Japan UNLIMITED 10 days | Unlimited | 10 days | $34.99 | $3.50 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Saily
|
Japan UNLIMITED 15 days | Unlimited | 15 days | $48.99 | $3.27 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Saily
|
Japan UNLIMITED 20 days | Unlimited | 20 days | $59.99 | $3.00 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Saily
|
Japan UNLIMITED 25 days | Unlimited | 25 days | $65.99 | $2.64 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Saily
|
Japan UNLIMITED 30 days | Unlimited | 30 days | $71.99 | $2.40 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Ubigi
|
Unlimited / 8 Days | Unlimited | 8 days | $25.00 | $3.12 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Ubigi
|
Unlimited / 30 Days | Unlimited | 30 days | $45.00 | $1.50 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 1 Day | Unlimited | 1 days | $3.97 | $3.97 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 2 Days | Unlimited | 2 days | $7.94 | $3.97 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 3 Days | Unlimited | 3 days | $11.91 | $3.97 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 4 Days | Unlimited | 4 days | $15.88 | $3.97 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 5 Days | Unlimited | 5 days | $19.85 | $3.97 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 6 Days | Unlimited | 6 days | $23.82 | $3.97 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 7 Days | Unlimited | 7 days | $27.78 | $3.97 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 8 Days | Unlimited | 8 days | $29.42 | $3.68 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 9 Days | Unlimited | 9 days | $31.05 | $3.45 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 10 Days | Unlimited | 10 days | $32.67 | $3.27 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 11 Days | Unlimited | 11 days | $34.31 | $3.12 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 12 Days | Unlimited | 12 days | $35.94 | $2.99 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 13 Days | Unlimited | 13 days | $37.57 | $2.89 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 14 Days | Unlimited | 14 days | $39.19 | $2.80 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 15 Days | Unlimited | 15 days | $40.83 | $2.72 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 16 Days | Unlimited | 16 days | $42.27 | $2.64 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 17 Days | Unlimited | 17 days | $43.70 | $2.57 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 18 Days | Unlimited | 18 days | $45.14 | $2.51 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 19 Days | Unlimited | 19 days | $46.58 | $2.45 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 20 Days | Unlimited | 20 days | $48.00 | $2.40 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 21 Days | Unlimited | 21 days | $49.44 | $2.35 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 22 Days | Unlimited | 22 days | $50.89 | $2.31 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 23 Days | Unlimited | 23 days | $52.31 | $2.27 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 24 Days | Unlimited | 24 days | $53.75 | $2.24 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 25 Days | Unlimited | 25 days | $55.19 | $2.21 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 26 Days | Unlimited | 26 days | $56.62 | $2.18 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 27 Days | Unlimited | 27 days | $58.06 | $2.15 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 28 Days | Unlimited | 28 days | $59.50 | $2.12 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 29 Days | Unlimited | 29 days | $60.93 | $2.10 | — | NTT Docomo, SoftBank, KDDI | View plan |
|
Yesim
|
Unlimited / 30 Days | Unlimited | 30 days | $62.37 | $2.08 | — | NTT Docomo, SoftBank, KDDI | View plan |
Prices in USD as listed by each provider, excluding promo codes and taxes. Badges are literal sort positions, not editorial picks — see our Methodik.
Fine print decoded
Is unlimited eSIM data really unlimited in Japan?
Every "unlimited" plan on this page, with its fair-use policy decoded:
| Provider | Plan | Price | $/day | Fair-use policy |
|---|---|---|---|---|
|
Roamic
|
Japan eSIM Unlimited Data / 1 Day | $3.00 | $3.00 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 1 Day | $3.97 | $3.97 | No fair-use policy published — treat speed claims with caution |
|
Roamic
|
Japan eSIM Unlimited Data / 2 Days | $6.00 | $3.00 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 2 Days | $7.94 | $3.97 | No fair-use policy published — treat speed claims with caution |
|
Roamic
|
Japan eSIM Unlimited Data / 3 Days | $9.00 | $3.00 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Roami
|
Unlimited / 3 Days | $9.99 | $3.33 | No fair-use policy published — treat speed claims with caution |
|
Jetpac
|
Japan (Unlimited 3 days) | $10.99 | $3.66 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Nomad
|
Local Japan - 3 Days - unlimited | $11.00 | $3.67 | 2 GB per day at full speed, then ∞ at 1Mbps |
|
Roamic
|
Japan eSIM Unlimited Data / 4 Days | $11.00 | $2.75 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Airalo
|
Moshi Moshi - Unlimited | $11.50 | $3.83 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
aloSIM
|
Unlimited / 3 Days | $11.50 | $3.83 | 3 GB per day at full speed, then ∞ at 1kbps |
|
Holafly
|
Unlimited / 3 Days | $11.90 | $3.97 | Always On backup plan: 1GB of data monthly to keep you connected no matter what. |
|
Yesim
|
Unlimited / 3 Days | $11.91 | $3.97 | No fair-use policy published — treat speed claims with caution |
|
Roamic
|
Japan eSIM Unlimited Data / 5 Days | $14.00 | $2.80 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 4 Days | $15.88 | $3.97 | No fair-use policy published — treat speed claims with caution |
|
Roamic
|
Japan eSIM Unlimited Data / 6 Days | $16.00 | $2.67 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Jetpac
|
Japan (Unlimited 5 days) | $16.99 | $3.40 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Airalo
|
Moshi Moshi - Unlimited | $17.00 | $3.40 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Roamic
|
Japan eSIM Unlimited Data / 7 Days | $18.00 | $2.57 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Roami
|
Unlimited / 7 Days | $18.99 | $2.71 | No fair-use policy published — treat speed claims with caution |
|
Saily
|
Japan UNLIMITED 5 days | $18.99 | $3.80 | 5 GB per day at full speed, then ∞ at 1kbps |
|
Roamic
|
Japan eSIM Unlimited Data / 8 Days | $19.00 | $2.38 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
aloSIM
|
Unlimited / 5 Days | $19.50 | $3.90 | 3 GB per day at full speed, then ∞ at 1kbps |
|
Yesim
|
Unlimited / 5 Days | $19.85 | $3.97 | No fair-use policy published — treat speed claims with caution |
|
Holafly
|
Unlimited / 5 Days | $20.50 | $4.10 | Always On backup plan: 1GB of data monthly to keep you connected no matter what. |
|
Roamic
|
Japan eSIM Unlimited Data / 9 Days | $22.00 | $2.44 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Roamic
|
Japan eSIM Unlimited Data / 10 Days | $23.00 | $2.30 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 6 Days | $23.82 | $3.97 | No fair-use policy published — treat speed claims with caution |
|
Nomad
|
Local Japan - 7 Days - unlimited | $25.00 | $3.57 | 2 GB per day at full speed, then ∞ at 1Mbps |
|
Roamic
|
Japan eSIM Unlimited Data / 11 Days | $25.00 | $2.27 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Ubigi
|
Unlimited / 8 Days | $25.00 | $3.12 | 5 GB per day at full speed, then ∞ at 2Mbps |
|
Jetpac
|
Japan Unlimited-7 Days | $25.99 | $3.71 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Airalo
|
Moshi Moshi - Unlimited | $26.50 | $3.79 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
aloSIM
|
Unlimited / 7 Days | $27.00 | $3.86 | 3 GB per day at full speed, then ∞ at 1kbps |
|
Roamic
|
Japan eSIM Unlimited Data / 12 Days | $27.00 | $2.25 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Holafly
|
Unlimited / 7 Days | $27.50 | $3.93 | Always On backup plan: 1GB of data monthly to keep you connected no matter what. |
|
Yesim
|
Unlimited / 7 Days | $27.78 | $3.97 | No fair-use policy published — treat speed claims with caution |
|
Saily
|
Japan UNLIMITED 7 days | $28.99 | $4.14 | 5 GB per day at full speed, then ∞ at 1Mbps |
|
Roamic
|
Japan eSIM Unlimited Data / 13 Days | $29.00 | $2.23 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 8 Days | $29.42 | $3.68 | No fair-use policy published — treat speed claims with caution |
|
Roamic
|
Japan eSIM Unlimited Data / 14 Days | $30.00 | $2.14 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 9 Days | $31.05 | $3.45 | No fair-use policy published — treat speed claims with caution |
|
Roamic
|
Japan eSIM Unlimited Data / 16 Days | $32.00 | $2.00 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Roamic
|
Japan eSIM Unlimited Data / 15 Days | $32.00 | $2.13 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 10 Days | $32.67 | $3.27 | No fair-use policy published — treat speed claims with caution |
|
Jetpac
|
Japan Unlimited-10 Days | $33.99 | $3.40 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Roamic
|
Japan eSIM Unlimited Data / 17 Days | $34.00 | $2.00 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 11 Days | $34.31 | $3.12 | No fair-use policy published — treat speed claims with caution |
|
Airalo
|
Moshi Moshi - Unlimited | $34.50 | $3.45 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Saily
|
Japan UNLIMITED 10 days | $34.99 | $3.50 | 5 GB per day at full speed, then ∞ at 1Mbps |
|
aloSIM
|
Unlimited / 10 Days | $35.00 | $3.50 | 3 GB per day at full speed, then ∞ at 1kbps |
|
Roamic
|
Japan eSIM Unlimited Data / 18 Days | $35.00 | $1.94 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 12 Days | $35.94 | $2.99 | No fair-use policy published — treat speed claims with caution |
|
Roamic
|
Japan eSIM Unlimited Data / 19 Days | $36.00 | $1.89 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Holafly
|
Unlimited / 10 Days | $36.50 | $3.65 | Always On backup plan: 1GB of data monthly to keep you connected no matter what. |
|
Roamic
|
Japan eSIM Unlimited Data / 20 Days | $37.00 | $1.85 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 13 Days | $37.57 | $2.89 | No fair-use policy published — treat speed claims with caution |
|
Roamic
|
Japan eSIM Unlimited Data / 21 Days | $39.00 | $1.86 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 14 Days | $39.19 | $2.80 | No fair-use policy published — treat speed claims with caution |
|
Roamic
|
Japan eSIM Unlimited Data / 23 Days | $40.00 | $1.74 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Roamic
|
Japan eSIM Unlimited Data / 22 Days | $40.00 | $1.82 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 15 Days | $40.83 | $2.72 | No fair-use policy published — treat speed claims with caution |
|
Nomad
|
Local Japan - 14 Days - unlimited | $41.00 | $2.93 | 2 GB per day at full speed, then ∞ at 1Mbps |
|
Roamic
|
Japan eSIM Unlimited Data / 24 Days | $41.00 | $1.71 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Jetpac
|
Japan (Unlimited 15 days) | $41.99 | $2.80 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Roamic
|
Japan eSIM Unlimited Data / 26 Days | $42.00 | $1.62 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Roamic
|
Japan eSIM Unlimited Data / 25 Days | $42.00 | $1.68 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 16 Days | $42.27 | $2.64 | No fair-use policy published — treat speed claims with caution |
|
Roami
|
Unlimited / 15 Days | $42.99 | $2.87 | No fair-use policy published — treat speed claims with caution |
|
Roamic
|
Japan eSIM Unlimited Data / 27 Days | $43.00 | $1.59 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 17 Days | $43.70 | $2.57 | No fair-use policy published — treat speed claims with caution |
|
Roamic
|
Japan eSIM Unlimited Data / 28 Days | $44.00 | $1.57 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Roamic
|
Japan eSIM Unlimited Data / 29 Days | $45.00 | $1.55 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Ubigi
|
Unlimited / 30 Days | $45.00 | $1.50 | 60 GB per month at full speed, then ∞ at 2Mbps (auto-renewing monthly subscription) |
|
Yesim
|
Unlimited / 18 Days | $45.14 | $2.51 | No fair-use policy published — treat speed claims with caution |
|
Roamic
|
Japan eSIM Unlimited Data / 30 Days | $46.00 | $1.53 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 19 Days | $46.58 | $2.45 | No fair-use policy published — treat speed claims with caution |
|
Airalo
|
Moshi Moshi - Unlimited | $48.00 | $3.20 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 20 Days | $48.00 | $2.40 | No fair-use policy published — treat speed claims with caution |
|
Saily
|
Japan UNLIMITED 15 days | $48.99 | $3.27 | 5 GB per day at full speed, then ∞ at 1Mbps |
|
aloSIM
|
Unlimited / 15 Days | $49.00 | $3.27 | 3 GB per day at full speed, then ∞ at 1kbps |
|
Nomad
|
Local Japan - 21 Days - unlimited | $49.00 | $2.33 | 2 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 21 Days | $49.44 | $2.35 | No fair-use policy published — treat speed claims with caution |
|
Jetpac
|
Japan (Unlimited 21 days) | $49.99 | $2.38 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Holafly
|
Unlimited / 15 Days | $50.50 | $3.37 | Always On backup plan: 1GB of data monthly to keep you connected no matter what. |
|
Yesim
|
Unlimited / 22 Days | $50.89 | $2.31 | No fair-use policy published — treat speed claims with caution |
|
Yesim
|
Unlimited / 23 Days | $52.31 | $2.27 | No fair-use policy published — treat speed claims with caution |
|
Yesim
|
Unlimited / 24 Days | $53.75 | $2.24 | No fair-use policy published — treat speed claims with caution |
|
Yesim
|
Unlimited / 25 Days | $55.19 | $2.21 | No fair-use policy published — treat speed claims with caution |
|
Yesim
|
Unlimited / 26 Days | $56.62 | $2.18 | No fair-use policy published — treat speed claims with caution |
|
Yesim
|
Unlimited / 27 Days | $58.06 | $2.15 | No fair-use policy published — treat speed claims with caution |
|
Yesim
|
Unlimited / 28 Days | $59.50 | $2.12 | No fair-use policy published — treat speed claims with caution |
|
Saily
|
Japan UNLIMITED 20 days | $59.99 | $3.00 | 5 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 29 Days | $60.93 | $2.10 | No fair-use policy published — treat speed claims with caution |
|
Yesim
|
Unlimited / 30 Days | $62.37 | $2.08 | No fair-use policy published — treat speed claims with caution |
|
Jetpac
|
Japan (Unlimited 30 days) | $65.99 | $2.20 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Saily
|
Japan UNLIMITED 25 days | $65.99 | $2.64 | 5 GB per day at full speed, then ∞ at 1Mbps |
|
Airalo
|
Moshi Moshi - Unlimited | $69.00 | $2.30 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Roami
|
Unlimited / 30 Days | $71.99 | $2.40 | No fair-use policy published — treat speed claims with caution |
|
Saily
|
Japan UNLIMITED 30 days | $71.99 | $2.40 | 5 GB per day at full speed, then ∞ at 1Mbps |
|
Holafly
|
Unlimited / 30 Days | $73.90 | $2.46 | Always On backup plan: 1GB of data monthly to keep you connected no matter what. |
|
aloSIM
|
Unlimited / 30 Days | $74.00 | $2.47 | 3 GB per day at full speed, then ∞ at 1kbps |
Decision guide
How to choose your Japan eSIM
How much eSIM data do you need in Japan?
- 1GBMaps, messaging and email for a city break — 1GB / 3 Days starts at $1.99.
- 5GBA normal week of maps, mail and social — cheapest 5GB+ bucket: Japan eSIM 5GB / 21 Days at $5.00.
- 10GB+Streaming, hotspot sharing or a working trip — cheapest 10GB+ bucket: 10GB / 3 Days at $8.99.
- ∞Don't want to count? 102 unlimited plans cover Japan — read the fair-use caps above before picking one.
Want exact numbers for your trip? Try the eSIM trip cost calculator.
How to install your Japan eSIM
Kaufe und installiere die eSIM vor dem Abflug im heimischen WLAN — das Profil liegt dann auf dem Handy und aktiviert sich bei der Landung in Japan von selbst.
Nicht sicher, ob dein Handy eSIM unterstützt? Zur Geräteliste
Matching plans to your trip
Japan eSIM plans by trip length
The same database, sliced by how long you stay and how you travel. Every pick below is a computed sort position — validity must cover the whole stay, and data must match the use case.
3–5 days
long weekend or city break
Japan eSIM 3GB / 14 Days
Roamic · 3GB / 14 days
$3.00
cheapest plan with at least 3GB and 5-day validity.
See the Roamic plan →7–10 days
the classic one-week trip
Japan eSIM 5GB / 21 Days
Roamic · 5GB / 21 days
$5.00
cheapest 5GB+ bucket with validity ≥ 10 days.
See the Roamic plan →Two weeks
longer tours and multi-city
Japan eSIM 10GB / 30 Days
Roamic · 10GB / 30 days
$9.00
cheapest 10GB+ bucket valid ≥ 15 days.
See the Roamic plan →30 days +
long stays and slow travel
Japan eSIM 50GB / 30 Days
Roamic · 50GB / 30 days
$33.00
best $/GB among 20GB+ plans valid ≥ 30 days.
See the Roamic plan →Best Japan eSIM by traveller type
Light user
maps, messaging, email
1GB / 3 Days
Roami · 1GB / 3 days
$1.99
lowest-price small bucket (1–5GB).
See the Roami plan →Standard tourist
navigation plus social and browsing
50GB / 10 Days
aloSIM · 50GB / 10 days
$27.50
best $/GB in the 5GB+ class.
See the aloSIM plan →Streamer & hotspot
video, tethering, multiple devices
Unlimited / 30 Days
Ubigi · unlimited / 30 days
$45.00
lowest cost per day without a GB counter.
See the Ubigi plan →Remote worker
calls, cloud work, weeks on the road
Japan eSIM 50GB / 30 Days
Roamic · 50GB / 30 days
$33.00
best $/GB among 30-day+ plans with 10GB or more.
See the Roamic plan →The lineup
Which eSIM providers cover Japan
Alle 10 Marken unten verkaufen einen Tarif in Japan. Ihr gemeinsames Profil — wer sie sind, worin sie stark sind — steht auf der Seite der jeweiligen Marke. Was sich von Land zu Land ändert, sind der Preis und das lokale Netz, und genau das zeigt jede Karte für Japan.
Airalo
since 2019
- Tarife hier erfasst
- 17 Tarife · 6 unlimited
- Günstigster Tarif hier
- $4.00 · 1GB · 3 Tage
- Bester Preis pro GB hier
- $1.20/GB · 20GB · 15 Tage
- Lokales Netz
- NTT Docomo, SoftBank, KDDI
118% über dem besten $/GB hier
Promo code NEWTOAIRALO15 — 15% off your first order (new customers) · all deals
aloSIM
since 2021
- Tarife hier erfasst
- 32 Tarife · 6 unlimited
- Günstigster Tarif hier
- $3.50 · 1GB · 1 Tag
- Bester Preis pro GB hier
- $0.55/GB · 50GB · 10 Tage
- Lokales Netz
- NTT Docomo, SoftBank, KDDI
Bester Preis pro GB der 10 Marken hier
Promo code ESIMTWEAKS — 15% off every plan · all deals
Holafly
since 2018
- Tarife hier erfasst
- 6 Tarife · 6 unlimited
- Günstigster Tarif hier
- $11.90 · unlimited · 3 Tage
- Bester Preis pro GB hier
- nur unlimited, ab $11.90
- Lokales Netz
- NTT Docomo, SoftBank, KDDI
Verkauft in Japan nur unlimited — kein GB-Preis zum Vergleichen
Promo code MYESIMNOW5 — 5% off all destination eSIMs · all deals
Jetpac
since 2022
- Tarife hier erfasst
- 24 Tarife · 7 unlimited
- Günstigster Tarif hier
- $5.00 · 3GB · 1 Tag
- Bester Preis pro GB hier
- $0.87/GB · 40GB · 30 Tage
- Lokales Netz
- NTT Docomo, SoftBank, KDDI
59% über dem besten $/GB hier
Promo code ESIM15 — 15% off eSIM plans · all deals
Nomad
since 2020
- Tarife hier erfasst
- 10 Tarife · 4 unlimited
- Günstigster Tarif hier
- $4.00 · 1GB · 7 Tage
- Bester Preis pro GB hier
- $0.70/GB · 50GB · 30 Tage
- Lokales Netz
- NTT Docomo, SoftBank, KDDI
27% über dem besten $/GB hier
Promo code BEYOND20 — 20% off selected plans (autumn campaign) · all deals
Roami
since 2024
- Tarife hier erfasst
- 24 Tarife · 4 unlimited
- Günstigster Tarif hier
- $1.99 · 1GB · 3 Tage
- Bester Preis pro GB hier
- $0.76/GB · 50GB · 30 Tage
- Lokales Netz
- NTT Docomo, SoftBank, KDDI
Günstigster Einstiegspreis der 10 Marken hier
Promo code web20 — 20% off your entire order · all deals
Roamic
since 2021
- Tarife hier erfasst
- 36 Tarife · 30 unlimited
- Günstigster Tarif hier
- $2.00 · 1GB · 7 Tage
- Bester Preis pro GB hier
- $0.66/GB · 50GB · 30 Tage
- Lokales Netz
- NTT Docomo, SoftBank, KDDI
20% über dem besten $/GB hier
Promo code FYESIM10 — 10% off all plans · all deals
Saily
since 2024
- Tarife hier erfasst
- 12 Tarife · 7 unlimited
- Günstigster Tarif hier
- $3.99 · 1GB · 7 Tage
- Bester Preis pro GB hier
- $1.25/GB · 20GB · 30 Tage
- Lokales Netz
- NTT Docomo, SoftBank, KDDI
127% über dem besten $/GB hier
Promo code VEEPEE25 — 25% off Saily eSIMs · all deals
Ubigi
since 2017
- Tarife hier erfasst
- 15 Tarife · 2 unlimited
- Günstigster Tarif hier
- $3.50 · 1GB · 3 Tage
- Bester Preis pro GB hier
- $0.90/GB · 20GB · 30 Tage
- Lokales Netz
- NTT Docomo, SoftBank, KDDI
64% über dem besten $/GB hier
Promo code PROMO15 — 15% off unlimited-data plans · all deals
Yesim
since 2019
- Tarife hier erfasst
- 35 Tarife · 30 unlimited
- Günstigster Tarif hier
- $3.97 · unlimited · 1 Tag
- Bester Preis pro GB hier
- $1.25/GB · 30GB · 30 Tage
- Lokales Netz
- NTT Docomo, SoftBank, KDDI
127% über dem besten $/GB hier
Promo code DREWDEAL — 20% off Yesim eSIM plans · all deals
Before you buy
Things to know before buying a Japan eSIM
-
Japanese law requires passport verification for local prepaid SIM cards (SoftBank, Docomo, KDDI) - travel eSIMs bypass this entirely.
-
SoftBank's own tourist SIM can only be activated 09:00-21:00 JST; travel eSIMs activate 24/7, which matters for late-night arrivals at Narita or Haneda.
-
Pocket WiFi rental is Japan's classic connectivity option. It wins for groups of 3 or more, but a solo traveler almost always pays less with an eSIM.
Netze
Which networks do Japan eSIMs run on
Every eSIM connects to a local carrier network. Coverage, speed and rural reach follow that host network — so knowing whose mast your plan uses matters more than the brand on the voucher. The destination-by-destination breakdown of all host carriers lives on the eSIM network map.
KDDI
5GPlans from Airalo, aloSIM, Holafly, Jetpac, Nomad, Roami, Roamic, Saily, Ubigi, Yesim connect to this network.
Typical 20–250 Mbps — enough for HD streaming · video calls · navigation
Strong nationwide, with a particularly good grip on western Japan and coastal routes. City speeds rival Docomo.
Where it wins: Nationwide reach close to Docomo with fast city service.
Where it lags: Slightly thinner in a few remote island areas.
NTT Docomo
5GPlans from Airalo, aloSIM, Holafly, Jetpac, Nomad, Roami, Roamic, Saily, Ubigi, Yesim connect to this network.
Typical 25–300 Mbps — enough for 4K streaming · video calls · hotspot work
Japan's gold standard for coverage — mountain passes, rural islands, basement floors. If your route leaves the cities, prefer a Docomo-based plan.
Where it wins: The widest coverage in Japan - the safest network for rural areas, mountains and islands.
Where it lags: Congestion can slow it at peak times in Tokyo.
SoftBank
5GPlans from Airalo, aloSIM, Holafly, Jetpac, Nomad, Roami, Roamic, Saily, Ubigi, Yesim connect to this network.
Typical 15–250 Mbps — enough for HD streaming · video calls · navigation
Excellent in cities and on major tourist corridors, with 5G around big stations. Rural reach is good but a step behind Docomo.
Where it wins: Fast urban 5G and solid metro coverage.
Where it lags: Rural and mountain coverage trails Docomo.
Japan's local carrier market
- NTT Docomo eSIM-ready
- SoftBank eSIM-ready
- KDDI eSIM-ready
Matched against the 211 plans in the table above. Prefer plans on the carrier with the best coverage where you're going.
Which national networks cover Japan's major cities
All the carriers above serve these metros with full speed; the differences between them show up outside them — rural roads, mountain areas, islands and deep-indoor spots like basements and metro platforms.
Speeds are typical real-world downloads (4G floor to good 5G); actual speeds depend on device, plan and location. For context: Netflix 4K needs about 25 Mbps, HD about 5.
Independent measurements
Independent network data for Japan
The network profiles above are ours. The findings below come from independent measurement firms — Opensignal crowdsources real-user readings, Ookla aggregates Speedtest samples — so you can cross-check whose masts actually perform before picking a plan that rides them.
Opensignal · April 2026
- SoftBank won Download Speed outright with 65.1 Mbps; NTT docomo won Coverage (9.0 out of 10) and 5G Download Speed (159.1 Mbps).
- au led the national award count with 10 sole wins and 1 joint win.
Source: Japan, April 2026, Mobile Network Experience Report, Opensignal.
Ookla · award report
Ookla named SoftBank the fastest mobile network in Japan for H1 2026, with a median download of 73.8 Mbps ahead of au at 67.9 — and a median 5G download of 153.6 Mbps ahead of Rakuten Mobile.
Source: Ookla Speedtest report, 2026-08.
Ookla Speedtest Global Index
Ookla's index tracks Japan's median mobile download, upload and latency month by month — the live picture of how the whole market's networks compare.
Open Japan on the Global Index →Award findings are quoted from the named reports and link to the originals. Sources accessed October 2026; our own price and fair-use data follow the Methodik.
FAQ
What should I know before buying a Japan eSIM
Which is the cheapest eSIM for Japan?
Among major providers, Roami currently has the lowest entry price for Japan at $1.99 for its 1GB / 3 Days package, and Roamic is the closest challenger at $2.00. If you only need maps and messaging, either plan covers a short city break - but on a per-GB basis aloSIM's 50GB / 10 Days is the strongest value we track at $0.55/GB.
Is unlimited data eSIM in Japan really unlimited?
Only within limits. Every one of the 102 unlimited plans we track for Japan caps the full-speed allowance for each day and then throttles, and the day rate across them runs from $1.50 to $4.14. The cheapest by day rate is Ubigi at $45.00 for 30 days ($1.50/day); its published terms: allowance Varies by plan - published per plan page; after that, 1 - 2 Mbps. Read the per-day price and the fair-use cap together before you buy.
Is Airalo or Holafly better for Japan?
Different products, so it depends on how you use data. Airalo sells fixed buckets - its best Japan rate is $1.20/GB (Moshi Moshi - 20 GB at $24.00) - which suits light use and sidesteps fair-use ambiguity entirely. Holafly sells unlimited data by the day only, from $11.90 for 3 days ($3.97/day), which suits heavy streamers who would rather not count gigabytes. For the same data neither is the cheapest on this page: Roami leads at $1.99.
Do I need a passport or ID to use an eSIM in Japan?
No - not with travel eSIMs. Japanese law requires passport verification for local prepaid SIM cards from SoftBank, NTT Docomo and KDDI, but travel eSIMs bypass this registration entirely. Every brand we track for Japan sells without a document upload at any step: buy, scan the QR code, and connect.
Which Japanese network does each provider use?
All of them. Every provider we track - Airalo, aloSIM, Holafly, Jetpac, Nomad, Roami, Roamic, Saily, Ubigi and Yesim - connects to the same three national networks in Japan (NTT Docomo, SoftBank and KDDI), so the brand on the voucher does not decide your coverage. What differs between providers is price per GB, plan shapes, hotspot rules and support. Docomo has the widest rural reach of the three, which matters on mountain routes and island hops, but because every Japan plan we list falls back across all three networks your phone picks the strongest signal available rather than staying pinned to one mast.
Can one eSIM cover Japan and South Korea on the same trip?
Yes - several providers sell Asia regional plans that bundle Japan with Korea, Taiwan and Hong Kong. If you are visiting two or more countries, a regional plan usually beats buying separate country eSIMs. Check our regional comparison before buying two single-country plans.
Keep traveling
eSIM for your next destination
Travelers comparing Japan eSIMs often price these destinations next — each card opens a live plan table, checked the same day as the one above.
New to eSIMs
First time using an eSIM?
The plans above assume the basics. If this is your first eSIM, these five short reads take you from what an eSIM is to a working data connection before you board.
Data you can check.
Prices on this page were last verified 07.10.2026. Full collection rules in our Methodik; how we make money in our Offenlegung.