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Japan

TailSim

TailSim offers eSIM plans for international trips. Stay connected wherever you go — no apps, no physical SIMs, no stress. Easy to install and use, with fast and reliable connectivity and no more roaming charges.

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TailSim eSIM Data Plans for Japan

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Japan - 1 GB - 7 Days

Data: 1GB
Validity: 7 Days
Price/GB: $3.99/GB
Price: $3.99

China mainland, Japan & South Korea - 1 GB - 7 Days

Data: 1GB
Validity: 7 Days
Price/GB: $4.99/GB
Price: $4.99

Japan & South Korea - 1 GB - 7 Days

Data: 1GB
Validity: 7 Days
Price/GB: $4.99/GB
Price: $4.99

Japan - 3 GB - 15 Days

Data: 3GB
Validity: 15 Days
Price/GB: $2.33/GB
Price: $6.99

Japan - 5 GB - 30 Days

Data: 5GB
Validity: 30 Days
Price/GB: $1.80/GB
Price: $8.99

China mainland, Japan & South Korea - Unlimited - 3 Days

Data: 1GB/day
+ ∞ 512kbps
Validity: 3 Days
Price/GB: $3.33/GB
Price: $9.99

China mainland, Japan & South Korea - 3 GB - 15 Days

Data: 3GB
Validity: 15 Days
Price/GB: $3.66/GB
Price: $10.99

Japan & South Korea - 3 GB - 15 Days

Data: 3GB
Validity: 15 Days
Price/GB: $3.66/GB
Price: $10.99

Japan - 10 GB - 30 Days

Data: 10GB
Validity: 30 Days
Price/GB: $1.40/GB
Price: $13.99

China mainland, Japan & South Korea - Unlimited - 5 Days

Data: 1GB/day
+ ∞ 512kbps
Validity: 5 Days
Price/GB: $3.20/GB
Price: $15.99

China mainland, Japan & South Korea - 5 GB - 30 Days

Data: 5GB
Validity: 30 Days
Price/GB: $3.60/GB
Price: $17.99

Japan & South Korea - 5 GB - 30 Days

Data: 5GB
Validity: 30 Days
Price/GB: $3.60/GB
Price: $17.99

China mainland, Japan & South Korea - Unlimited - 7 Days

Data: 1GB/day
+ ∞ 512kbps
Validity: 7 Days
Price/GB: $3.14/GB
Price: $21.99

Japan - 20 GB - 30 Days

Data: 20GB
Validity: 30 Days
Price/GB: $1.20/GB
Price: $23.99

China mainland, Japan & South Korea - 10 GB - 30 Days

Data: 10GB
Validity: 30 Days
Price/GB: $2.70/GB
Price: $26.99

Japan & South Korea - 10 GB - 30 Days

Data: 10GB
Validity: 30 Days
Price/GB: $2.70/GB
Price: $26.99

China mainland, Japan & South Korea - Unlimited - 10 Days

Data: 1GB/day
+ ∞ 512kbps
Validity: 10 Days
Price/GB: $3.00/GB
Price: $29.99

China mainland, Japan & South Korea - 20 GB - 30 Days

Data: 20GB
Validity: 30 Days
Price/GB: $2.25/GB
Price: $44.99

Japan & South Korea - 20 GB - 30 Days

Data: 20GB
Validity: 30 Days
Price/GB: $2.25/GB
Price: $44.99

China mainland, Japan & South Korea - Unlimited - 15 Days

Data: 1GB/day
+ ∞ 512kbps
Validity: 15 Days
Price/GB: $3.00/GB
Price: $44.99

Japan - 50 GB - 30 Days

Data: 50GB
Validity: 30 Days
Price/GB: $1.02/GB
Price: $50.99

China mainland, Japan & South Korea - Unlimited - 20 Days

Data: 1GB/day
+ ∞ 512kbps
Validity: 20 Days
Price/GB: $2.85/GB
Price: $56.99

China mainland, Japan & South Korea - Unlimited - 25 Days

Data: 1GB/day
+ ∞ 512kbps
Validity: 25 Days
Price/GB: $2.84/GB
Price: $70.99

China mainland, Japan & South Korea - Unlimited - 30 Days

Data: 1GB/day
+ ∞ 512kbps
Validity: 30 Days
Price/GB: $2.73/GB
Price: $81.99

TailSim for Japan FAQ

Does TailSim offer unlimited data eSIM for Japan?

TailSim does not provide a truly unlimited high‑speed data eSIM for Japan. The plans titled “Unlimited” give 1 GB of data per day, and after that amount the speed is reduced to 512 kbps. Because the speed thins, the plans are not considered unlimited high‑speed data bundles.

If a traveler needs larger data allowances, TailSim offers fixed data plans such as the 50 GB for 30 days or the 20 GB and 10 GB options, all of which provide 5G speed throughout the validity period. These fixed plans can be more cost‑effective for users who consume substantial data while traveling in Japan.

Does TailSim offer Japan eSIM with phone number and SMS?

TailSim does not provide a Japan eSIM that includes a phone number or SMS capability. Only data‑only plans are available for travelers in Japan.

If travelers need to make calls or send messages, they can use popular VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection. However, some destinations may block or restrict certain VoIP services, so users should confirm that the apps they rely on work in Japan before purchasing a data plan.

How many data plans does TailSim offer for Japan?

TailSim offers six single‑country data plans that cover Japan and a separate set of eighteen multi‑country plans in which Japan is included. The catalogue contains two different plan styles: eight options feature a daily data cap that resets each day, while sixteen options provide a fixed data cap for the entire validity period. Prices for these plans range from USD 3.99 to USD 81.99, and data limits span from 1 GB up to 50 GB.

Summarized by AI, Last updated:

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