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 U+ 5G SKTelecom 5G
Traveller reviews
Ananya H.
South Korea · Jul 2026
Honestly better than buying a local SIM at the airport. Streaming and video calls worked without buffering. Highly recommend for any traveller.
Priya
GotoeSIM Support
· 3 days ago Thanks a lot, Ananya! Thrilled it made staying connected effortless. We're here whenever you travel again. — Priya, GotoeSIM Support
Liam T.
Poland · Jul 2026
No more hunting for a SIM card kiosk on arrival. Activation was automatic when I arrived.
Sophie
GotoeSIM Support
· 5 days ago Cheers, Liam! So pleased it saved you from roaming bills. Enjoy your journeys! — Sophie
Lucas C.
Portugal · Jul 2026
Did the job without any drama in Japan & South Korea. Streaming and video calls worked without buffering. Would definitely buy again.
Yuki
GotoeSIM Support
· 5 days ago Really appreciate this, Lucas! Great to know the setup was quick and easy. Enjoy your journeys! — Yuki
Max V.
Ireland · Jul 2026
Honestly better than buying a local SIM at the airport. Ran hotspot to my laptop with no issues.
Diego
GotoeSIM Support
· 5 days ago Cheers, Max! Love that you were online the moment you landed in Japan & South Korea. Enjoy your journeys! — Diego
Marco R.
India · Jul 2026
Bought it the night before my flight — smooth process. Coverage was strong even outside the city. Will use GotoeSIM for my next trip for sure.
James
GotoeSIM Support
· 6 days ago Thank you so much, Marco! Great to know the setup was quick and easy. Come back anytime! – James, GotoeSIM Support
Beatriz L.
Philippines · Jul 2026
First time using an eSIM and it was painless. Streaming and video calls worked without buffering. Telling my friends about this.
Anna
GotoeSIM Support
· 1 week ago Cheers, Beatriz! Love that you were online the moment you landed in Japan & South Korea. Come back anytime! – Anna, GotoeSIM Support
Aisha V.
India · Jul 2026
Exactly what I needed for travelling. Customer support answered my question quickly. Five stars from me.
Sara
GotoeSIM Support
· 1 week ago Cheers, Aisha! Great to know the setup was quick and easy. Come back anytime! — Sara
Lucia T.
India · Jul 2026
Install took me two tries but was fine after that. Ran hotspot to my laptop with no issues.
Omar
GotoeSIM Support
· 1 week ago Thanks for the honest feedback, Lucia. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at gotoesim.com/support if we can help. – Omar, GotoeSIM Support
Andre F.
New Zealand · Jul 2026
Did the job without any drama. Speeds were solid for maps, messaging and browsing. Five stars from me.
Priya
GotoeSIM Support
· 1 week ago Thanks a lot, Andre! Great to know the setup was quick and easy. Come back anytime! — Priya, GotoeSIM Support
Hana M.
Singapore · Jul 2026
Used this on my trip and it worked perfectly. Signal held up well on trains and in rural areas. A must-have for international travel.
Sara
GotoeSIM Support
· 1 week ago Thanks a lot, Hana! Great to know the setup was quick and easy. – Sara, GotoeSIM Support
James K.
UAE · Jul 2026
Great value compared to roaming charges. I kept my normal number for calls while using this for data. Made staying connected effortless.
Sara
GotoeSIM Support
· 1 week ago Thanks for sharing, James! Love that you were online the moment you landed in Japan & South Korea. — Sara
Chloe F.
Singapore · Jul 2026
First time using an eSIM and it was painless. Coverage was strong even outside the city. Highly recommend for any traveller.
Anna
GotoeSIM Support
· 1 week ago Thanks a lot, Chloe! Love that you were online the moment you landed in Japan & South Korea. — Anna, GotoeSIM Support
Sven W.
Turkey · Jul 2026
Connected the moment I landed in Japan & South Korea. Ran hotspot to my laptop with no issues. A must-have for international travel.
Grace
GotoeSIM Support
· 2 weeks ago So glad to hear this, Sven! Thrilled it made staying connected effortless. Enjoy your journeys! – Grace 💜
Sarah N.
Turkey · Jul 2026
Used this on my trip and it worked perfectly. I kept my normal number for calls while using this for data. Five stars from me.
Yuki
GotoeSIM Support
· 2 weeks ago Thank you for the kind words, Sarah! Delighted the speeds worked well for you. Enjoy your journeys! — Yuki, GotoeSIM Support
Noah H.
UAE · Jul 2026
Connected the moment I landed. Activation was automatic when I arrived in Japan & South Korea.
Laura
GotoeSIM Support
· 2 weeks ago So glad to hear this, Noah! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! – Laura 💜
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