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✓ Prices checked Oct 7, 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
What is the best eSIM for Japan?
It depends on how you travel and on how much data you actually use. Three picks computed from all 211 plans we track — prices checked Oct 7, 2026.
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 methodology.
What the numbers mean
What Japan eSIM prices reveal
The raw table hides a split in how Japan eSIMs are priced, and understanding it saves real money. One camp sells fixed data buckets - pay $4-8 for a few gigabytes that expire with the validity window. The other camp, led by Holafly, sells unlimited data billed by the day at roughly $3.90 per day flat. Below about 5GB of expected usage, fixed buckets win easily. Past 15GB, the daily plans start to look reasonable - but only if you check their fair-use fine print first, because “unlimited” almost never means unlimited speed.
The crossover for Japan sits lower than most travelers expect. Roami’s 20GB/30-day plan works out to $1.05 per GB, and its 7-day unlimited tier at $18.99 undercuts Holafly’s equivalent window by about $8 while listing no documented fair-use cap. Unless you specifically want pay-per-day simplicity, the cheapest Japanese data on the market right now is a fixed bucket from Roami or Saily, not an unlimited plan from anyone.
Two Japan-specific rules shape the market here and are worth knowing before you buy. First, local prepaid SIMs legally require passport verification and SoftBank’s own activation desk keeps 9:00-21:00 JST hours - travel eSIMs sidestep both, which is why late-night arrivals at Narita and Haneda should never bet on a local SIM. Second, network matters more than price in rural Japan: plans that ride only Docomo are fine almost everywhere, but multi-network plans that auto-switch between Docomo, SoftBank and KDDI give you fallback signal in onsen towns and along Shinkansen corridors where a single network can drop.
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
Buy and install it on home Wi-Fi before you fly — the profile sits on your phone and activates by itself when you land in Japan.
Not sure your phone supports eSIM? Check the device list
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
All 10 brands below sell a plan in Japan. Their shared profile — who they are, what they are good at — lives on each brand's own page. What changes from country to country is the price and the local network, so that is what each card reports for Japan.
Airalo
since 2019
- Plans tracked here
- 17 plans · 6 unlimited
- Cheapest plan here
- $4.00 · 1GB · 3 days
- Best value here
- $1.20/GB · 20GB · 15 days
- Local network
- NTT Docomo, SoftBank, KDDI
118% above the best $/GB here
Promo code NEWTOAIRALO15 — 15% off your first order (new customers) · all deals
aloSIM
since 2021
- Plans tracked here
- 32 plans · 6 unlimited
- Cheapest plan here
- $3.50 · 1GB · 1 day
- Best value here
- $0.55/GB · 50GB · 10 days
- Local network
- NTT Docomo, SoftBank, KDDI
Best cost per GB of the 10 brands here
Promo code ESIMTWEAKS — 15% off every plan · all deals
Holafly
since 2018
- Plans tracked here
- 6 plans · 6 unlimited
- Cheapest plan here
- $11.90 · unlimited · 3 days
- Best value here
- unlimited only, from $11.90
- Local network
- NTT Docomo, SoftBank, KDDI
Sells unlimited data only in Japan — no gigabyte count to rank
Promo code MYESIMNOW5 — 5% off all destination eSIMs · all deals
Jetpac
since 2022
- Plans tracked here
- 24 plans · 7 unlimited
- Cheapest plan here
- $5.00 · 3GB · 1 day
- Best value here
- $0.87/GB · 40GB · 30 days
- Local network
- NTT Docomo, SoftBank, KDDI
59% above the best $/GB here
Promo code ESIM15 — 15% off eSIM plans · all deals
Nomad
since 2020
- Plans tracked here
- 10 plans · 4 unlimited
- Cheapest plan here
- $4.00 · 1GB · 7 days
- Best value here
- $0.70/GB · 50GB · 30 days
- Local network
- NTT Docomo, SoftBank, KDDI
27% above the best $/GB here
Promo code BEYOND20 — 20% off selected plans (autumn campaign) · all deals
Roami
since 2024
- Plans tracked here
- 24 plans · 4 unlimited
- Cheapest plan here
- $1.99 · 1GB · 3 days
- Best value here
- $0.76/GB · 50GB · 30 days
- Local network
- NTT Docomo, SoftBank, KDDI
Cheapest entry price of the 10 brands here
Promo code web20 — 20% off your entire order · all deals
Roamic
since 2021
- Plans tracked here
- 36 plans · 30 unlimited
- Cheapest plan here
- $2.00 · 1GB · 7 days
- Best value here
- $0.66/GB · 50GB · 30 days
- Local network
- NTT Docomo, SoftBank, KDDI
20% above the best $/GB here
Promo code FYESIM10 — 10% off all plans · all deals
Saily
since 2024
- Plans tracked here
- 12 plans · 7 unlimited
- Cheapest plan here
- $3.99 · 1GB · 7 days
- Best value here
- $1.25/GB · 20GB · 30 days
- Local network
- NTT Docomo, SoftBank, KDDI
127% above the best $/GB here
Promo code VEEPEE25 — 25% off Saily eSIMs · all deals
Ubigi
since 2017
- Plans tracked here
- 15 plans · 2 unlimited
- Cheapest plan here
- $3.50 · 1GB · 3 days
- Best value here
- $0.90/GB · 20GB · 30 days
- Local network
- NTT Docomo, SoftBank, KDDI
64% above the best $/GB here
Promo code PROMO15 — 15% off unlimited-data plans · all deals
Head to head
The closest eSIM matchups for Japan
Ordered by the cheapest plan each brand sells for Japan, these 6 pairings are the tightest price gaps between brands sitting next to each other in that ranking — each one opens the full head-to-head.
Airalo vs Nomad
Airalo $4.00 · Nomad $4.00 · $0.00 apart
See the verdict →
aloSIM vs Ubigi
aloSIM $3.50 · Ubigi $3.50 · $0.00 apart
See the verdict →
Saily vs Airalo
Saily $3.99 · Airalo $4.00 · $0.01 apart
See the verdict →
Roami vs Roamic
Roami $1.99 · Roamic $2.00 · $0.01 apart
See the verdict →
Yesim vs Saily
Yesim $3.97 · Saily $3.99 · $0.02 apart
See the verdict →
Ubigi vs Yesim
Ubigi $3.50 · Yesim $3.97 · $0.47 apart
See the verdict →
Before you buy
Things to know before buying an eSIM for Japan
-
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.
An eSIM for Japan is priced per country, not per city. One plan covers every network inside the borders, so there is no separate tariff for Tokyo, Osaka, Kyoto, Fukuoka — and no airport counter to queue at either, because the profile is installed at home before you fly.
Networks
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, and this destination has its own Japan carrier breakdown.
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 methodology.
FAQ
What should I know before buying an eSIM for Japan
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.
Can I use an eSIM in Japan?
An eSIM works in Japan the same way it works anywhere else: the profile registers on a Japanese network when you land, and nothing about the country blocks it. All 10 providers we track sell Japan plans, and the 211 packages listed above connect to the same three national networks. What decides success is your handset rather than the destination.
Will my phone work with an eSIM in Japan?
Japan adds no handset requirement of its own, so any eSIM-capable and carrier-unlocked phone works with the plans on this page. The trap is the phone rather than the country: the same model name can ship with or without an eSIM chip depending on the market it was sold in, and a handset bought in mainland China has no chip at all. Dial *#06# before you buy, and a Japan plan will install if an EID number appears.
Do I need a local number in Japan?
A Japanese phone number is not required for a travel eSIM, and the plans on this page are data-only. Local voice SIMs in Japan come with identity checks that travel eSIMs skip entirely, which is why the number people reach you on stays your own. Keep the physical SIM active for calls and verification codes, and let the eSIM carry data.
What do travellers say about eSIMs in Japan?
Rather than a star rating, this page answers the review question with measurements - the 211 Japan plans from 10 providers, ranked on one $/GB and $/day formula. Review scores for the same brand differ by the region the reviewer sits in, so a single figure would mislead. Read the numbers above for the verifiable half, and the provider's own channels for sentiment.
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.
eSIM explained
What the technology actually is, minus the marketing.
SIM card alternative
Where eSIMs win and where a physical SIM still makes sense.
activating an eSIM
The install walkthrough for every provider we track.
supported phones
The 30-second EID test plus every compatible phone we verified.
dual SIM phones
Keep your home number while travel data runs on eSIM.
Data you can check.
Prices on this page were last verified Oct 7, 2026. Full collection rules in our methodology; how we make money in our disclosure.