Japan & South Korea eSIM — reviews & details
Japan & South Korea 5GB 30Days · 5 GB · 30 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea SKTelecom 5G LG Uplus 5G
Traveller reviews
Ryan S.
Switzerland · Oct 2025
Solid overall, just wish there was a bit more data for the price.
Ken
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 esimtopup.io/support if we can help. — Ken
Elena L.
Ireland · Oct 2025
Honestly better than buying a local SIM at the airport. Coverage was strong even outside the city. Great experience overall.
Ingrid
GotoeSIM Support
· 9 months ago So glad to hear this, Elena! So happy the Japan & South Korea eSIM kept you connected. — Ingrid
Kenji B.
Indonesia · Oct 2025
No more hunting for a SIM card kiosk on arrival in Japan & South Korea. Ran hotspot to my laptop with no issues.
James
GotoeSIM Support
· 9 months ago Thank you so much, Kenji! Love that you were online the moment you landed in Japan & South Korea. We're here whenever you travel again. – James, eSIM TopUp Support
Camila L.
Mexico · Oct 2025
Super easy to set up before I flew out. Signal held up well on trains and in rural areas.
Laura
GotoeSIM Support
· 9 months ago Thank you for the kind words, Camila! Thrilled it made staying connected effortless. Enjoy your journeys! — Laura
Max S.
New Zealand · Oct 2025
Used this on my trip and it worked perfectly in Japan & South Korea. Speeds were solid for maps, messaging and browsing. Great experience overall.
Omar
GotoeSIM Support
· 9 months ago Thank you so much, Max! So pleased it saved you from roaming bills. Enjoy your journeys! – Omar, eSIM TopUp Support
Nguyen D.
Thailand · Oct 2025
Used this on my trip and it worked perfectly. Speeds were solid for maps, messaging and browsing. Exactly as described — no surprises.
Sophie
GotoeSIM Support
· 9 months ago Thank you for the kind words, Nguyen! Wonderful to hear it worked smoothly in Japan & South Korea. Safe travels, and see you on your next trip! – Sophie 💜
Chloe C.
Turkey · Oct 2025
No more hunting for a SIM card kiosk on arrival. The QR code arrived instantly by email. Zero regrets.
Ken
GotoeSIM Support
· 9 months ago Cheers, Chloe! Wonderful to hear it worked smoothly in Japan & South Korea. – Ken 💜
Mateo F.
Portugal · Oct 2025
Super easy to set up before I flew out. Activation was automatic when I arrived. Telling my friends about this.
Laura
GotoeSIM Support
· 9 months ago So glad to hear this, Mateo! Great to know the setup was quick and easy. — Laura, eSIM TopUp Support
Ananya H.
Saudi Arabia · Oct 2025
No more hunting for a SIM card kiosk on arrival. Setup instructions in the app were clear and simple.
James
GotoeSIM Support
· 9 months ago So glad to hear this, Ananya! So pleased it saved you from roaming bills. — James
Marco D.
Poland · Oct 2025
Super easy to set up before I flew out. Customer support answered my question quickly. Will use eSIM TopUp for my next trip for sure.
David
GotoeSIM Support
· 9 months ago Really appreciate this, Marco! Wonderful to hear it worked smoothly in Japan & South Korea. — David
Diego H.
Australia · Oct 2025
Saved me a fortune on my holiday. Setup instructions in the app were clear and simple. Would definitely buy again.
Yuki
GotoeSIM Support
· 10 months ago Thanks a lot, Diego! Love that you were online the moment you landed in Japan & South Korea. Enjoy your journeys! — Yuki
Somchai T.
Egypt · Oct 2025
Bought it the night before my flight — smooth process in Japan & South Korea. Signal held up well on trains and in rural areas.
Grace
GotoeSIM Support
· 10 months ago Thank you for the kind words, Somchai! Love that you were online the moment you landed in Japan & South Korea. Wishing you many more connected adventures! – Grace 💜
Carlos N.
Vietnam · Oct 2025
Honestly better than buying a local SIM at the airport. Customer support answered my question quickly. Made staying connected effortless.
Laura
GotoeSIM Support
· 10 months ago Cheers, Carlos! Thrilled it made staying connected effortless. Come back anytime! – Laura, eSIM TopUp Support
Louis L.
Spain · Oct 2025
Exactly what I needed for travelling. Topping up was straightforward when I needed more. Telling my friends about this.
Omar
GotoeSIM Support
· 10 months ago Thank you for the kind words, Louis! Thrilled it made staying connected effortless. – Omar, eSIM TopUp Support
Carlos C.
Vietnam · Oct 2025
Used this on my trip and it worked perfectly in Japan & South Korea. Setup instructions in the app were clear and simple. Telling my friends about this.
Yuki
GotoeSIM Support
· 10 months ago Thanks for sharing, Carlos! Great to know the setup was quick and easy. We're here whenever you travel again. – Yuki 💜
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 5GB 30Days plan costs $9.75 for 5 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 eSIM TopUp 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
Emma M. · 2 months ago
Can I use this for hotspot/tethering?
Andre H. · 2 months ago
Is 5G supported or just 4G?
Elena H. · 3 months ago
Thanks, installed with no problems on my Samsung.
Arjun N. · 4 months ago
How do I check how much data I have left?
Lucia L. · 4 months ago
Will this keep my WhatsApp active with my home number?
Mohammed P. · 6 months ago
Which networks does this connect to?
Katya C. · 7 months ago
Can I use it in nearby countries too?
Liam G. · 7 months ago
Can I top up the same eSIM instead of buying a new one?
Emma C. · 7 months ago
Great guide, the setup steps were really helpful.
Katya K. · 9 months ago
How long does the QR code take to arrive after payment?
Lea N. · 1 year ago
Does the validity start on purchase or on first use?
Marco N. · 1 year ago
Do I need to install it before I travel or after I arrive?