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
Ryan T.
Ireland · Jun 2026
Connected the moment I landed. Coverage was strong even outside the city.
Diego
GotoeSIM Support
· 1 month ago Cheers, Ryan! Love that you were online the moment you landed in Japan & South Korea. We're here whenever you travel again. — Diego
Isabella W.
India · Jun 2026
Great value compared to roaming charges. Speeds were solid for maps, messaging and browsing. Will use GotoeSIM for my next trip for sure.
Sophie
GotoeSIM Support
· 1 month ago Thanks a lot, Isabella! So happy the Japan & South Korea eSIM kept you connected. We're here whenever you travel again. – Sophie, GotoeSIM Support
Pablo V.
Thailand · Jun 2026
Did the job without any drama. The QR code arrived instantly by email. A must-have for international travel.
Emma
GotoeSIM Support
· 1 month ago Thank you so much, Pablo! Thrilled it made staying connected effortless. — Emma, GotoeSIM Support
Anna V.
Brazil · Jun 2026
Bought it the night before my flight — smooth process. Ran hotspot to my laptop with no issues. Great experience overall.
Ingrid
GotoeSIM Support
· 1 month ago Cheers, Anna! Great to know the setup was quick and easy. — Ingrid
Grace D.
United States · Jun 2026
Saved me a fortune on my holiday. The QR code arrived instantly by email. Telling my friends about this.
David
GotoeSIM Support
· 1 month ago Thank you for the kind words, Grace! Great to know the setup was quick and easy. – David, GotoeSIM Support
Ava M.
Switzerland · Jun 2026
Installed in minutes by scanning the QR code in Japan & South Korea. Ran hotspot to my laptop with no issues. Made staying connected effortless.
Ingrid
GotoeSIM Support
· 1 month ago Cheers, Ava! Great to know the setup was quick and easy. We're here whenever you travel again. — Ingrid, GotoeSIM Support
Beatriz B.
United States · Jun 2026
Exactly what I needed for travelling in Japan & South Korea. Topping up was straightforward when I needed more.
David
GotoeSIM Support
· 1 month ago Thank you so much, Beatriz! Love that you were online the moment you landed in Japan & South Korea. — David, GotoeSIM Support
Viktor C.
Italy · Jun 2026
Connected the moment I landed. Data lasted the whole trip with room to spare. Great experience overall.
Omar
GotoeSIM Support
· 1 month ago Thank you for the kind words, Viktor! Wonderful to hear it worked smoothly in Japan & South Korea. Enjoy your journeys! — Omar
Giulia M.
Germany · Jun 2026
Decent speeds, though slower than I expected in a few spots. Data lasted the whole trip with room to spare.
Omar
GotoeSIM Support
· 1 month ago Thank you for taking the time, Giulia. 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
Min-jun B.
Spain · Jun 2026
Installed in minutes by scanning the QR code in Japan & South Korea. Customer support answered my question quickly. Will use GotoeSIM for my next trip for sure.
Emma
GotoeSIM Support
· 1 month ago Thank you for the kind words, Min-jun! So pleased it saved you from roaming bills. — Emma, GotoeSIM Support
Min-jun G.
Netherlands · Jun 2026
Super easy to set up before I flew out in Japan & South Korea. I kept my normal number for calls while using this for data. A must-have for international travel.
Diego
GotoeSIM Support
· 1 month ago Really appreciate this, Min-jun! Great to know the setup was quick and easy. Come back anytime! – Diego, GotoeSIM Support
Elena M.
Vietnam · Jun 2026
Decent speeds, though slower than I expected in a few spots. Topping up was straightforward when I needed more.
David
GotoeSIM Support
· 1 month ago Appreciate you sharing this, Elena. 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, GotoeSIM Support
Arjun H.
Singapore · Jun 2026
Did the job without any drama in Japan & South Korea. Coverage was strong even outside the city.
Sara
GotoeSIM Support
· 1 month ago Thank you for the kind words, Arjun! So pleased it saved you from roaming bills. Safe travels, and see you on your next trip! – Sara, GotoeSIM Support
Mohammed S.
Vietnam · Jun 2026
Saved me a fortune on my holiday. Setup instructions in the app were clear and simple. Great experience overall.
Grace
GotoeSIM Support
· 1 month ago Thanks for sharing, Mohammed! Delighted the speeds worked well for you. Wishing you many more connected adventures! — Grace, GotoeSIM Support
Ryan C.
Canada · May 2026
Great value compared to roaming charges. Ran hotspot to my laptop with no issues.
James
GotoeSIM Support
· 1 month ago So glad to hear this, Ryan! So happy the Japan & South Korea eSIM kept you connected. 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