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
Mohammed S.
Netherlands · Oct 2025
Used this on my trip and it worked perfectly. Customer support answered my question quickly.
Yuki
GotoeSIM Support
· 9 months ago Thanks a lot, Mohammed! So happy the Japan & South Korea eSIM kept you connected. – Yuki, GotoeSIM Support
Yuki W.
Switzerland · Oct 2025
Honestly better than buying a local SIM at the airport. Ran hotspot to my laptop with no issues. Would definitely buy again.
David
GotoeSIM Support
· 9 months ago Thank you so much, Yuki! Love that you were online the moment you landed in Japan & South Korea. — David
Sri P.
United Kingdom · Oct 2025
Connected the moment I landed. Customer support answered my question quickly. Will use GotoeSIM for my next trip for sure.
Mark
GotoeSIM Support
· 9 months ago Cheers, Sri! Delighted the speeds worked well for you. We're here whenever you travel again. — Mark
Olivia R.
Portugal · Oct 2025
Bought it the night before my flight — smooth process. Coverage was strong even outside the city. Highly recommend for any traveller.
Ken
GotoeSIM Support
· 9 months ago Cheers, Olivia! Wonderful to hear it worked smoothly in Japan & South Korea. Safe travels, and see you on your next trip! — Ken, GotoeSIM Support
Ava N.
Turkey · Oct 2025
Used this on my trip and it worked perfectly in Japan & South Korea. Signal held up well on trains and in rural areas. A must-have for international travel.
Emma
GotoeSIM Support
· 9 months ago Really appreciate this, Ava! Thrilled it made staying connected effortless. We're here whenever you travel again. – Emma 💜
Beatriz M.
Mexico · Oct 2025
Installed in minutes by scanning the QR code in Japan & South Korea. Customer support answered my question quickly.
David
GotoeSIM Support
· 9 months ago So glad to hear this, Beatriz! Delighted the speeds worked well for you. Enjoy your journeys! — David
Ryan L.
Indonesia · Oct 2025
Decent speeds, though slower than I expected in a few spots. Speeds were solid for maps, messaging and browsing.
David
GotoeSIM Support
· 9 months ago Thank you for taking the time, Ryan. Good to hear it did the job, and we're working to make it even better. Reach us anytime at gotoesim.com/support if we can help. — David, GotoeSIM Support
Mateo B.
Indonesia · Oct 2025
Honestly better than buying a local SIM at the airport. Signal held up well on trains and in rural areas. Would definitely buy again.
Tom
GotoeSIM Support
· 9 months ago Really appreciate this, Mateo! So happy the Japan & South Korea eSIM kept you connected. – Tom 💜
Andre V.
Mexico · Oct 2025
Honestly better than buying a local SIM at the airport. Streaming and video calls worked without buffering.
Laura
GotoeSIM Support
· 9 months ago Thank you so much, Andre! Love that you were online the moment you landed in Japan & South Korea. — Laura
James W.
UAE · Oct 2025
Bought it the night before my flight — smooth process. Topping up was straightforward when I needed more. Zero regrets.
Yuki
GotoeSIM Support
· 9 months ago Cheers, James! Great to know the setup was quick and easy. Enjoy your journeys! – Yuki 💜
Max H.
Switzerland · Oct 2025
Great value compared to roaming charges. Coverage was strong even outside the city.
David
GotoeSIM Support
· 9 months ago Thanks a lot, Max! Delighted the speeds worked well for you. We're here whenever you travel again. — David
Kenji T.
South Korea · Oct 2025
Did the job without any drama. Activation was automatic when I arrived. Would definitely buy again.
Sophie
GotoeSIM Support
· 9 months ago Thanks for sharing, Kenji! Wonderful to hear it worked smoothly in Japan & South Korea. Safe travels, and see you on your next trip! – Sophie 💜
Grace B.
Turkey · Oct 2025
Install took me two tries but was fine after that. Topping up was straightforward when I needed more.
Ken
GotoeSIM Support
· 9 months ago Appreciate you sharing this, Grace. 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. – Ken 💜
Emma F.
Thailand · Oct 2025
Great value compared to roaming charges. Customer support answered my question quickly. Would definitely buy again.
David
GotoeSIM Support
· 9 months ago So glad to hear this, Emma! Love that you were online the moment you landed in Japan & South Korea. Safe travels, and see you on your next trip! – David 💜
Sri G.
United Kingdom · Oct 2025
Used this on my trip and it worked perfectly. Coverage was strong even outside the city.
James
GotoeSIM Support
· 9 months ago Thank you so much, Sri! So pleased it saved you from roaming bills. Come back anytime! — James
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