Best virtual eSIMs for travelers

Japan & South Korea eSIM

Explore eSIM plans for your travel route.

4G/5G

Choose your package

3 days

5 days

7 days

10 days

15 days

30 days

Why Choose Regional eSIM?

Single eSIM

No SIM swapping needed

Seamless

Auto-connect borders

Better Value

Cheaper than local

Instant

Ready in 2 mins

Is your device eSIM compatible?

Verify your phone supports eSIM technology before purchasing

Fast internet for your favorite apps

Optimized for messaging & streaming

WhatsApp
Spotify
YouTube
Instagram
TikTok
Telegram
Netflix
Gmail
Facebook
Maps

Frequently Asked Questions

Everything you need to know about data-only eSIM in Japan & South Korea

Can one eSIM cover both Japan and South Korea?
Yes. The Asia regional plan listed here includes both Japan and South Korea. Compare it with separate country plans according to the days spent in each country and your data needs. A Japan-only plan does not automatically work in South Korea, or vice versa. The regional plan’s allowance and validity apply across the covered trip, not separately to each country.
How much data should I choose for a 7–14 day trip?
Start with your own usage. At 500 MB per day, 7 days uses about 3.5 GB and 14 days about 7 GB. Maps and messages generally need less than video, cloud backups or laptop sharing. These are planning examples. Compare the displayed GB allowance and validity, or review the unlimited plan’s speed and fair-use terms.
When should I install and activate my travel eSIM?
Check that your exact phone model supports eSIM and is carrier-unlocked. Install over reliable Wi-Fi before departure, following the plan’s activation rules. Select the travel eSIM for mobile data when needed and enable its data roaming as instructed. Keep roaming off on your home line. A regional plan may also cover a stopover country, so check when validity begins.
Can I keep WhatsApp and receive calls or SMS?
You can keep your existing WhatsApp account and use it over the eSIM’s mobile data. These catalog plans are data-only: they do not provide a local phone number, ordinary cellular calls or SMS. Messages sent to your home number still depend on your home SIM and operator. A new data eSIM does not redirect bank verification texts.
Can I share the connection with family or a laptop?
Yes. All eSIMfo plans in this catalog support hotspot. Connect other devices through your phone’s personal hotspot. On fixed-GB plans, shared usage comes from the same allowance; unlimited plans retain their stated speed and fair-use conditions. Choose enough data for all devices and keep a charger handy.
Will I stay connected on trains, flights or the Japan–Korea ferry?
These plans connect to terrestrial mobile networks. Reception may drop in tunnels, remote areas and some buildings. They do not provide in-flight Wi-Fi or offshore satellite service, so a flight or ferry crossing may be offline. Save tickets and maps in advance. The country count at the top combines all catalog coverage; check the selected plan’s own country list.

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