Japan & South Korea eSIM — reviews & details
Japan & South Korea 3GB 30Days · 3 GB · 30 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea LG U+ 5G SKTelecom 5G
Traveller reviews
Hana R.
Italy · Feb 2026
Installed in minutes by scanning the QR code. Setup instructions in the app were clear and simple. Five stars from me.
Ingrid
GotoeSIM Support
· 5 months ago Thank you for the kind words, Hana! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! – Ingrid, GotoeSIM Support
Grace P.
Australia · Feb 2026
Solid overall, just wish there was a bit more data for the price. Activation was automatic when I arrived.
Diego
GotoeSIM Support
· 5 months ago Thanks for the honest feedback, Grace. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at gotoesim.com/support if we can help. – Diego 💜
Ingrid C.
France · Feb 2026
Bought it the night before my flight — smooth process. Data lasted the whole trip with room to spare.
David
GotoeSIM Support
· 5 months ago Thank you for the kind words, Ingrid! Love that you were online the moment you landed in Japan & South Korea. Safe travels, and see you on your next trip! — David
Thomas V.
Germany · Feb 2026
First time using an eSIM and it was painless. The QR code arrived instantly by email. A must-have for international travel.
David
GotoeSIM Support
· 5 months ago Thank you so much, Thomas! Love that you were online the moment you landed in Japan & South Korea. – David 💜
Aisha T.
United States · Feb 2026
Exactly what I needed for travelling. Activation was automatic when I arrived. Great experience overall.
Omar
GotoeSIM Support
· 5 months ago Cheers, Aisha! Delighted the speeds worked well for you. We're here whenever you travel again. – Omar, GotoeSIM Support
Louis C.
Brazil · Feb 2026
First time using an eSIM and it was painless. Activation was automatic when I arrived.
Ingrid
GotoeSIM Support
· 5 months ago Thank you so much, Louis! So pleased it saved you from roaming bills. – Ingrid 💜
Ingrid G.
Canada · Feb 2026
Did the job without any drama. Ran hotspot to my laptop with no issues.
Tom
GotoeSIM Support
· 5 months ago Cheers, Ingrid! Wonderful to hear it worked smoothly in Japan & South Korea. Come back anytime! — Tom
Diego R.
Sweden · Feb 2026
No more hunting for a SIM card kiosk on arrival in Japan & South Korea. Coverage was strong even outside the city. Great experience overall.
Emma
GotoeSIM Support
· 5 months ago So glad to hear this, Diego! So happy the Japan & South Korea eSIM kept you connected. Safe travels, and see you on your next trip! — Emma
Mohammed P.
Indonesia · Feb 2026
Did the job without any drama. Customer support answered my question quickly. Made staying connected effortless.
Sophie
GotoeSIM Support
· 5 months ago Thank you so much, Mohammed! Delighted the speeds worked well for you. We're here whenever you travel again. — Sophie
Ravi P.
Saudi Arabia · Feb 2026
Honestly better than buying a local SIM at the airport. Streaming and video calls worked without buffering. A must-have for international travel.
Ken
GotoeSIM Support
· 5 months ago Thanks for sharing, Ravi! Love that you were online the moment you landed in Japan & South Korea. Safe travels, and see you on your next trip! — Ken
Ava N.
Vietnam · Feb 2026
Did the job without any drama. Customer support answered my question quickly. Will use GotoeSIM for my next trip for sure.
Emma
GotoeSIM Support
· 5 months ago Thank you for the kind words, Ava! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! — Emma, GotoeSIM Support
Chloe L.
Singapore · Feb 2026
Decent speeds, though slower than I expected in a few spots. Streaming and video calls worked without buffering.
Ken
GotoeSIM Support
· 5 months ago Thank you for taking the time, Chloe. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at gotoesim.com/support. – Ken 💜
Chloe C.
Philippines · Feb 2026
Decent speeds, though slower than I expected in a few spots.
Sara
GotoeSIM Support
· 5 months ago So sorry to hear this, Chloe. This isn't the standard we aim for. Reach our team at gotoesim.com/support so we can help right away. — Sara, GotoeSIM Support
Hugo B.
Mexico · Jan 2026
Saved me a fortune on my holiday. Signal held up well on trains and in rural areas. Made staying connected effortless.
Omar
GotoeSIM Support
· 5 months ago Thank you so much, Hugo! Delighted the speeds worked well for you. We're here whenever you travel again. – Omar, GotoeSIM Support
Kenji L.
Canada · Jan 2026
First time using an eSIM and it was painless. The QR code arrived instantly by email. Made staying connected effortless.
Emma
GotoeSIM Support
· 5 months ago Cheers, Kenji! So pleased it saved you from roaming bills. We're here whenever you travel again. — Emma, GotoeSIM Support
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 3GB 30Days plan costs $6.08 for 3 GB over 30 days, paid once with no hidden fees.
How do I activate my Japan & South Korea eSIM?
Scan the QR code in your phone settings (Cellular/Mobile → Add eSIM) or tap Install in the GotoeSIM app. Install on Wi-Fi before your trip; it activates when you arrive in Japan & South Korea.
Will this eSIM work on my phone?
It works on any eSIM-compatible, carrier-unlocked phone — iPhone XS and newer, Google Pixel 3 and newer, and recent Samsung Galaxy models.
Can I keep my regular number?
Yes. The eSIM runs alongside your normal SIM, so you keep your number for calls and texts while using data in Japan & South Korea.
Comments & questions
Diego B. · 4 months ago
Do I need to install it before I travel or after I arrive?
Install on Wi-Fi before you fly, Diego — it switches on when you land. — Sophie, GotoeSIM Support
Grace K. · 7 months ago
How long does the QR code take to arrive after payment?
It's immediate, Grace! The QR code is delivered the moment your payment goes through. – Ingrid 💜
Ava H. · 8 months ago
How do I check how much data I have left?
You can check remaining data anytime in the GotoeSIM app under My eSIMs, Ava. — Grace, GotoeSIM Support
Nguyen P. · 8 months ago
Can I use it in nearby countries too?
For nearby countries, Nguyen, a regional plan may suit you better — happy to help you pick. – Omar, GotoeSIM Support
Nguyen D. · 9 months ago
Which networks does this connect to?
It connects to trusted local partner networks, Nguyen, on 4G/5G where available. – Anna, GotoeSIM Support
Anna L. · 9 months ago
Is roaming charged extra or is it all included?
Roaming is included in the plan, Anna — no extra charges, it's all prepaid. — Laura
Noah V. · 9 months ago
Thanks, installed with no problems on my Samsung.
It works great on modern Samsung phones, Noah! Add it via SIM manager and you're set. — Priya
Aisha H. · 10 months ago
Can I top up the same eSIM instead of buying a new one?
Yes Aisha, you can top up the same eSIM anytime — no need to buy a new one. — Emma
Giulia B. · 10 months ago
Will this keep my WhatsApp active with my home number?
Your number stays active for WhatsApp, Giulia! The eSIM just handles data. — Sara
Somchai H. · 11 months ago
Great guide, the setup steps were really helpful.
Thanks Somchai, that means a lot! Reach out anytime. – James, GotoeSIM Support
Lea R. · 1 year ago
Is 5G supported or just 4G?
5G is available where covered, Lea — you'll always get the best speed on offer. — Mark, GotoeSIM Support
Carlos G. · 1 year ago
Does this work on an iPhone 13?
Absolutely, Carlos! Any iPhone XS or newer supports it. Scan the QR in Settings › Cellular. – Ken, GotoeSIM Support