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
Viktor V.
Japan · Jul 2026
Super easy to set up before I flew out. Speeds were solid for maps, messaging and browsing. A must-have for international travel.
Emma
GotoeSIM Support
· 4 days ago Thanks a lot, Viktor! So pleased it saved you from roaming bills. Wishing you many more connected adventures! – Emma, GotoeSIM Support
Ji-woo F.
France · Jul 2026
Super easy to set up before I flew out. Topping up was straightforward when I needed more.
Ken
GotoeSIM Support
· 6 days ago Thank you so much, Ji-woo! Delighted the speeds worked well for you. – Ken, GotoeSIM Support
Ethan M.
Mexico · Jul 2026
Did the job without any drama in Japan & South Korea. Streaming and video calls worked without buffering. Would definitely buy again.
Ingrid
GotoeSIM Support
· 6 days ago Cheers, Ethan! Love that you were online the moment you landed in Japan & South Korea. Enjoy your journeys! – Ingrid 💜
Arjun C.
Mexico · Jul 2026
Super easy to set up before I flew out. Setup instructions in the app were clear and simple. Made staying connected effortless.
Laura
GotoeSIM Support
· 1 week ago Really appreciate this, Arjun! So happy the Japan & South Korea eSIM kept you connected. Wishing you many more connected adventures! — Laura
Sophia V.
France · Jul 2026
Super easy to set up before I flew out. Speeds were solid for maps, messaging and browsing. Would definitely buy again.
James
GotoeSIM Support
· 1 week ago Thanks a lot, Sophia! Great to know the setup was quick and easy. — James, GotoeSIM Support
Yuki C.
UAE · Jul 2026
Bought it the night before my flight — smooth process. Speeds were solid for maps, messaging and browsing.
James
GotoeSIM Support
· 1 week ago Thanks for sharing, Yuki! So happy the Japan & South Korea eSIM kept you connected. Wishing you many more connected adventures! – James, GotoeSIM Support
Carlos P.
UAE · Jul 2026
Worked fine but took a little while to connect at first. Speeds were solid for maps, messaging and browsing.
Priya
GotoeSIM Support
· 1 week ago Thanks for the honest feedback, Carlos. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Reach us anytime at gotoesim.com/support if we can help. – Priya, GotoeSIM Support
Min-jun H.
Japan · Jul 2026
Installed in minutes by scanning the QR code in Japan & South Korea. Speeds were solid for maps, messaging and browsing.
Sara
GotoeSIM Support
· 2 weeks ago Really appreciate this, Min-jun! Love that you were online the moment you landed in Japan & South Korea. Wishing you many more connected adventures! — Sara, GotoeSIM Support
Noah T.
United Kingdom · Jul 2026
No more hunting for a SIM card kiosk on arrival. Streaming and video calls worked without buffering. Made staying connected effortless.
Sophie
GotoeSIM Support
· 2 weeks ago Cheers, Noah! Great to know the setup was quick and easy. We're here whenever you travel again. — Sophie
Sofia R.
Switzerland · Jul 2026
Solid overall, just wish there was a bit more data for the price. The QR code arrived instantly by email.
Anna
GotoeSIM Support
· 2 weeks ago Appreciate you sharing this, Sofia. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Reach us anytime at gotoesim.com/support if we can help. – Anna, GotoeSIM Support
Fatima K.
Mexico · Jul 2026
Worked fine but took a little while to connect at first.
David
GotoeSIM Support
· 3 weeks ago Appreciate you sharing this, Fatima. 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. — David
Mohammed G.
Egypt · Jul 2026
Exactly what I needed for travelling. Activation was automatic when I arrived in Japan & South Korea. Zero regrets.
David
GotoeSIM Support
· 3 weeks ago Cheers, Mohammed! Great to know the setup was quick and easy. Enjoy your journeys! — David
Chloe P.
Mexico · Jul 2026
Exactly what I needed for travelling. The QR code arrived instantly by email. Would definitely buy again.
Omar
GotoeSIM Support
· 3 weeks ago Really appreciate this, Chloe! So happy the Japan & South Korea eSIM kept you connected. — Omar
Grace G.
Saudi Arabia · Jul 2026
Honestly better than buying a local SIM at the airport in Japan & South Korea. Setup instructions in the app were clear and simple. Highly recommend for any traveller.
Priya
GotoeSIM Support
· 3 weeks ago Thank you so much, Grace! Wonderful to hear it worked smoothly in Japan & South Korea. Safe travels, and see you on your next trip! — Priya
Ingrid W.
Indonesia · Jul 2026
Used this on my trip and it worked perfectly. Activation was automatic when I arrived. A must-have for international travel.
Ken
GotoeSIM Support
· 3 weeks ago Thanks for sharing, Ingrid! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! – Ken, 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