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
Somchai F.
Japan · Aug 2025
Installed in minutes by scanning the QR code. Topping up was straightforward when I needed more.
Sara
GotoeSIM Support
· 11 months ago Thank you so much, Somchai! Wonderful to hear it worked smoothly in Japan & South Korea. Enjoy your journeys! – Sara, eSIM TopUp Support
Ingrid D.
Indonesia · Aug 2025
Bought it the night before my flight — smooth process in Japan & South Korea. Speeds were solid for maps, messaging and browsing. Five stars from me.
David
GotoeSIM Support
· 11 months ago Really appreciate this, Ingrid! Love that you were online the moment you landed in Japan & South Korea. Safe travels, and see you on your next trip! — David, eSIM TopUp Support
Somchai K.
India · Aug 2025
Bought it the night before my flight — smooth process. Customer support answered my question quickly. Zero regrets.
Grace
GotoeSIM Support
· 11 months ago Thanks a lot, Somchai! Wonderful to hear it worked smoothly in Japan & South Korea. — Grace
Noah W.
Thailand · Aug 2025
No more hunting for a SIM card kiosk on arrival. Speeds were solid for maps, messaging and browsing. Telling my friends about this.
Diego
GotoeSIM Support
· 11 months ago Thanks for sharing, Noah! Thrilled it made staying connected effortless. Enjoy your journeys! – Diego 💜
Sofia R.
New Zealand · Aug 2025
Honestly better than buying a local SIM at the airport. Activation was automatic when I arrived.
James
GotoeSIM Support
· 11 months ago Thanks for sharing, Sofia! Delighted the speeds worked well for you. Wishing you many more connected adventures! – James, eSIM TopUp Support
Omar V.
Turkey · Aug 2025
Honestly better than buying a local SIM at the airport. Setup instructions in the app were clear and simple. Will use eSIM TopUp for my next trip for sure.
David
GotoeSIM Support
· 1 year ago Cheers, Omar! Wonderful to hear it worked smoothly in Japan & South Korea. — David, eSIM TopUp Support
Arjun N.
Egypt · Aug 2025
First time using an eSIM and it was painless. The QR code arrived instantly by email. Highly recommend for any traveller.
Grace
GotoeSIM Support
· 1 year ago Cheers, Arjun! Delighted the speeds worked well for you. – Grace 💜
Ji-woo M.
South Korea · Aug 2025
Bought it the night before my flight — smooth process. Setup instructions in the app were clear and simple. Telling my friends about this.
Anna
GotoeSIM Support
· 1 year 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! — Anna, eSIM TopUp Support
Liam H.
Japan · Aug 2025
Exactly what I needed for travelling in Japan & South Korea. The QR code arrived instantly by email. Telling my friends about this.
David
GotoeSIM Support
· 1 year ago Thank you for the kind words, Liam! Love that you were online the moment you landed in Japan & South Korea. Enjoy your journeys! – David, eSIM TopUp Support
Wei W.
Indonesia · Aug 2025
Worked fine but took a little while to connect at first. Activation was automatic when I arrived.
Anna
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Wei. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. – Anna, eSIM TopUp Support
Budi B.
Ireland · Aug 2025
Worked fine but took a little while to connect at first. Activation was automatic when I arrived.
Diego
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Budi. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at esimtopup.io/support if we can help. – Diego, eSIM TopUp Support
Zoe M.
Portugal · Aug 2025
Exactly what I needed for travelling. Coverage was strong even outside the city.
Diego
GotoeSIM Support
· 1 year ago Thanks for sharing, Zoe! Thrilled it made staying connected effortless. Wishing you many more connected adventures! – Diego, eSIM TopUp Support
Louis T.
Switzerland · Aug 2025
Exactly what I needed for travelling. Streaming and video calls worked without buffering. Made staying connected effortless.
Emma
GotoeSIM Support
· 1 year ago Cheers, Louis! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! — Emma
Louis F.
South Korea · Aug 2025
Installed in minutes by scanning the QR code. Speeds were solid for maps, messaging and browsing.
Emma
GotoeSIM Support
· 1 year ago Thank you so much, Louis! So happy the Japan & South Korea eSIM kept you connected. Enjoy your journeys! – Emma 💜
Budi T.
Saudi Arabia · Aug 2025
First time using an eSIM and it was painless. Setup instructions in the app were clear and simple. Would definitely buy again.
Sara
GotoeSIM Support
· 1 year ago Cheers, Budi! So happy the Japan & South Korea eSIM kept you connected. Come back anytime! — Sara
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?