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
Sven S.
Poland · Nov 2025
First time using an eSIM and it was painless. Coverage was strong even outside the city. Exactly as described — no surprises.
Priya
GotoeSIM Support
· 8 months ago So glad to hear this, Sven! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! – Priya 💜
Louis M.
Vietnam · Nov 2025
Exactly what I needed for travelling. Coverage was strong even outside the city. Highly recommend for any traveller.
Mark
GotoeSIM Support
· 8 months ago Really appreciate this, Louis! So pleased it saved you from roaming bills. – Mark, GotoeSIM Support
Wei N.
Italy · Nov 2025
Exactly what I needed for travelling. The QR code arrived instantly by email. A must-have for international travel.
Omar
GotoeSIM Support
· 8 months ago Cheers, Wei! Love that you were online the moment you landed in Japan & South Korea. Wishing you many more connected adventures! — Omar
Noah F.
New Zealand · Nov 2025
No more hunting for a SIM card kiosk on arrival. The QR code arrived instantly by email. Great experience overall.
Ingrid
GotoeSIM Support
· 8 months ago Cheers, Noah! Wonderful to hear it worked smoothly in Japan & South Korea. – Ingrid, GotoeSIM Support
Isabella S.
United Kingdom · Nov 2025
First time using an eSIM and it was painless in Japan & South Korea. Coverage was strong even outside the city. Will use GotoeSIM for my next trip for sure.
Mark
GotoeSIM Support
· 8 months ago Thanks for sharing, Isabella! Love that you were online the moment you landed in Japan & South Korea. Safe travels, and see you on your next trip! — Mark, GotoeSIM Support
Chloe V.
United States · Nov 2025
Did the job without any drama. Data lasted the whole trip with room to spare. Will use GotoeSIM for my next trip for sure.
Ken
GotoeSIM Support
· 8 months ago Thanks for sharing, Chloe! So pleased it saved you from roaming bills. Wishing you many more connected adventures! — Ken, GotoeSIM Support
Emma R.
New Zealand · Nov 2025
Great value compared to roaming charges. The QR code arrived instantly by email.
Emma
GotoeSIM Support
· 8 months ago Really appreciate this, Emma! Delighted the speeds worked well for you. – Emma 💜
Beatriz P.
Netherlands · Nov 2025
Used this on my trip and it worked perfectly. The QR code arrived instantly by email. Telling my friends about this.
Anna
GotoeSIM Support
· 8 months ago Thanks for sharing, Beatriz! Love that you were online the moment you landed in Japan & South Korea. Come back anytime! — Anna, GotoeSIM Support
Lea C.
South Korea · Nov 2025
No more hunting for a SIM card kiosk on arrival. Coverage was strong even outside the city. Highly recommend for any traveller.
David
GotoeSIM Support
· 8 months ago Really appreciate this, Lea! Delighted the speeds worked well for you. Wishing you many more connected adventures! – David 💜
Andre B.
Singapore · Nov 2025
Worked fine but took a little while to connect at first. Streaming and video calls worked without buffering.
Tom
GotoeSIM Support
· 8 months ago Thank you for taking the time, Andre. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Any questions, our team is at gotoesim.com/support. — Tom, GotoeSIM Support
Grace L.
Japan · Nov 2025
Honestly better than buying a local SIM at the airport. Coverage was strong even outside the city.
Sara
GotoeSIM Support
· 8 months ago Thank you for the kind words, Grace! So pleased it saved you from roaming bills. – Sara, GotoeSIM Support
Louis W.
Australia · Nov 2025
Solid overall, just wish there was a bit more data for the price.
Ingrid
GotoeSIM Support
· 8 months ago So sorry to hear this, Louis. This isn't the standard we aim for. Reach our team at gotoesim.com/support so we can help right away. – Ingrid 💜
Ingrid D.
UAE · Nov 2025
Used this on my trip and it worked perfectly. Streaming and video calls worked without buffering. Zero regrets.
Yuki
GotoeSIM Support
· 8 months ago So glad to hear this, Ingrid! Wonderful to hear it worked smoothly in Japan & South Korea. Enjoy your journeys! – Yuki, GotoeSIM Support
Somchai D.
United Kingdom · Nov 2025
First time using an eSIM and it was painless. Data lasted the whole trip with room to spare. Five stars from me.
David
GotoeSIM Support
· 8 months ago Thanks for sharing, Somchai! Wonderful to hear it worked smoothly in Japan & South Korea. We're here whenever you travel again. – David, GotoeSIM Support
Yuki L.
South Korea · Nov 2025
Great value compared to roaming charges. Ran hotspot to my laptop with no issues.
Priya
GotoeSIM Support
· 8 months ago Thanks for sharing, Yuki! Delighted the speeds worked well for you. – Priya, 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. · 10 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