Japan & South Korea eSIM — reviews & details
Japan & South Korea 1GB 7Days · 1 GB · 7 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea LG Uplus 5G SKTelecom 5G
Traveller reviews
Ava C.
Portugal · Aug 2025
Bought it the night before my flight — smooth process. Topping up was straightforward when I needed more. Would definitely buy again.
Emma
GotoeSIM Support
· 11 months ago Thanks a lot, Ava! So pleased it saved you from roaming bills. Come back anytime! — Emma
Ravi F.
Singapore · Aug 2025
Solid overall, just wish there was a bit more data for the price.
Diego
GotoeSIM Support
· 11 months ago Apologies for the trouble, Ravi. That's not the experience we want for Japan & South Korea. Please contact us at gotoesim.com/support and we'll sort it out. – Diego 💜
Zoe F.
Australia · Aug 2025
Used this on my trip and it worked perfectly. Data lasted the whole trip with room to spare.
Ingrid
GotoeSIM Support
· 11 months ago Really appreciate this, Zoe! Love that you were online the moment you landed in Japan & South Korea. – Ingrid, GotoeSIM Support
Sarah T.
Spain · Aug 2025
First time using an eSIM and it was painless. I kept my normal number for calls while using this for data.
Grace
GotoeSIM Support
· 11 months ago Cheers, Sarah! Delighted the speeds worked well for you. Enjoy your journeys! – Grace 💜
Louis K.
Japan · Aug 2025
Saved me a fortune on my holiday. Signal held up well on trains and in rural areas.
Ken
GotoeSIM Support
· 11 months ago Really appreciate this, Louis! Delighted the speeds worked well for you. Wishing you many more connected adventures! – Ken 💜
Ethan T.
Indonesia · Aug 2025
Bought it the night before my flight — smooth process in Japan & South Korea. Coverage was strong even outside the city. Would definitely buy again.
Ingrid
GotoeSIM Support
· 11 months ago Thank you for the kind words, Ethan! So happy the Japan & South Korea eSIM kept you connected. – Ingrid, GotoeSIM Support
Marco R.
Japan · Aug 2025
Honestly better than buying a local SIM at the airport. Topping up was straightforward when I needed more.
Anna
GotoeSIM Support
· 11 months ago Thank you for the kind words, Marco! Delighted the speeds worked well for you. Wishing you many more connected adventures! — Anna
Budi T.
Saudi Arabia · Aug 2025
Honestly better than buying a local SIM at the airport. Topping up was straightforward when I needed more. Will use GotoeSIM for my next trip for sure.
Laura
GotoeSIM Support
· 11 months ago Cheers, Budi! So pleased it saved you from roaming bills. Enjoy your journeys! — Laura, GotoeSIM Support
Ji-woo S.
Saudi Arabia · Aug 2025
Exactly what I needed for travelling. Ran hotspot to my laptop with no issues.
James
GotoeSIM Support
· 11 months ago Thanks a lot, Ji-woo! Love that you were online the moment you landed in Japan & South Korea. Safe travels, and see you on your next trip! — James, GotoeSIM Support
Thomas H.
Vietnam · Aug 2025
Saved me a fortune on my holiday. Ran hotspot to my laptop with no issues. Five stars from me.
Yuki
GotoeSIM Support
· 11 months ago So glad to hear this, Thomas! So happy the Japan & South Korea eSIM kept you connected. Come back anytime! — Yuki
Budi R.
Italy · Aug 2025
Bought it the night before my flight — smooth process. Streaming and video calls worked without buffering. Exactly as described — no surprises.
Sophie
GotoeSIM Support
· 11 months ago Thanks for sharing, Budi! Delighted the speeds worked well for you. Come back anytime! – Sophie 💜
Noah R.
Indonesia · Aug 2025
Bought it the night before my flight — smooth process. Activation was automatic when I arrived.
James
GotoeSIM Support
· 11 months ago Thank you so much, Noah! Wonderful to hear it worked smoothly in Japan & South Korea. Enjoy your journeys! – James 💜
Thomas D.
Indonesia · Aug 2025
Worked fine but took a little while to connect at first. Signal held up well on trains and in rural areas.
Ingrid
GotoeSIM Support
· 11 months ago Thanks for the honest feedback, Thomas. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at gotoesim.com/support. — Ingrid, GotoeSIM Support
Lucas C.
Thailand · Aug 2025
First time using an eSIM and it was painless. Data lasted the whole trip with room to spare. Would definitely buy again.
Ken
GotoeSIM Support
· 11 months ago Thanks for sharing, Lucas! Great to know the setup was quick and easy. – Ken 💜
Lucia M.
France · Jul 2025
Super easy to set up before I flew out. Setup instructions in the app were clear and simple. Highly recommend for any traveller.
James
GotoeSIM Support
· 11 months ago Thank you for the kind words, Lucia! Great to know the setup was quick and easy. Wishing you many more connected adventures! — James, GotoeSIM Support
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 1GB 7Days plan costs $2.03 for 1 GB over 7 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
Carlos P. · 2 months ago
Can I top up the same eSIM instead of buying a new one?
Yes Carlos, you can top up the same eSIM anytime — no need to buy a new one. — Sara, GotoeSIM Support
Hana V. · 4 months ago
Is 5G supported or just 4G?
Yes Hana, 5G is supported where the local network offers it, otherwise fast 4G. – Laura, GotoeSIM Support
Aisha N. · 5 months ago
Is roaming charged extra or is it all included?
No surprise fees, Aisha! Roaming is part of the plan and never billed separately. — Mark
Louis G. · 5 months ago
How long does the QR code take to arrive after payment?
Your QR code arrives instantly, Louis — within seconds of payment, by email and in your account. – Grace, GotoeSIM Support
Wei L. · 5 months ago
Do I need to install it before I travel or after I arrive?
Install on Wi-Fi before you fly, Wei — it switches on when you land. — Priya
Priya R. · 8 months ago
Can I use it in nearby countries too?
For nearby countries, Priya, a regional plan may suit you better — happy to help you pick. — Ken, GotoeSIM Support
Lucia P. · 9 months ago
Does this work on an iPhone 13?
Yes Lucia, it works on iPhone XS and newer — just add the eSIM under Settings › Cellular › Add eSIM. – Omar 💜
Lucas D. · 9 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, Lucas. – Ingrid, GotoeSIM Support
Katya C. · 10 months ago
Which networks does this connect to?
You'll be on top local networks, Katya — full details are on the plan page under Coverage. – Tom 💜
Somchai B. · 11 months ago
Thanks, installed with no problems on my Samsung.
It works great on modern Samsung phones, Somchai! Add it via SIM manager and you're set. – Yuki, GotoeSIM Support
Yuki P. · 11 months ago
Does the validity start on purchase or on first use?
The clock starts on first use in-country, Yuki, so buying early is totally fine. — Sophie, GotoeSIM Support
Priya S. · 1 year ago
Will this keep my WhatsApp active with my home number?
Yes Priya, WhatsApp keeps working with your home number — the eSIM only carries data. — James, GotoeSIM Support