Japan & South Korea eSIM — reviews & details
Japan & South Korea 10GB 30days · 10 GB · 30 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea SKTelecom 5G LG Uplus 5G
Traveller reviews
Chloe F.
Saudi Arabia · Mar 2026
Did the job without any drama. Streaming and video calls worked without buffering.
David
GotoeSIM Support
· 4 months ago Thank you for the kind words, Chloe! Thrilled it made staying connected effortless. Wishing you many more connected adventures! — David, eSIM TopUp Support
Noah H.
India · Mar 2026
Bought it the night before my flight — smooth process. Signal held up well on trains and in rural areas. Great experience overall.
Priya
GotoeSIM Support
· 4 months ago Really appreciate this, Noah! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! – Priya, eSIM TopUp Support
Pablo D.
Spain · Mar 2026
Did the job without any drama. The QR code arrived instantly by email. Would definitely buy again.
Yuki
GotoeSIM Support
· 4 months ago Thanks a lot, Pablo! Wonderful to hear it worked smoothly in Japan & South Korea. — Yuki
Emma L.
Sweden · Mar 2026
No more hunting for a SIM card kiosk on arrival in Japan & South Korea. Speeds were solid for maps, messaging and browsing. Would definitely buy again.
Mark
GotoeSIM Support
· 4 months ago Thanks a lot, Emma! Love that you were online the moment you landed in Japan & South Korea. Come back anytime! — Mark, eSIM TopUp Support
Zoe T.
France · Mar 2026
Decent speeds, though slower than I expected in a few spots. Signal held up well on trains and in rural areas.
Laura
GotoeSIM Support
· 4 months ago Thanks for the honest feedback, Zoe. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at esimtopup.io/support if we can help. — Laura, eSIM TopUp Support
Grace P.
Turkey · Mar 2026
No more hunting for a SIM card kiosk on arrival in Japan & South Korea. I kept my normal number for calls while using this for data.
Grace
GotoeSIM Support
· 4 months ago Cheers, Grace! Love that you were online the moment you landed in Japan & South Korea. We're here whenever you travel again. — Grace, eSIM TopUp Support
Sarah M.
South Korea · Mar 2026
Exactly what I needed for travelling. Coverage was strong even outside the city. Five stars from me.
Ken
GotoeSIM Support
· 4 months ago Cheers, Sarah! So happy the Japan & South Korea eSIM kept you connected. Safe travels, and see you on your next trip! — Ken, eSIM TopUp Support
Zoe T.
Thailand · Mar 2026
Bought it the night before my flight — smooth process. I kept my normal number for calls while using this for data. Zero regrets.
Sara
GotoeSIM Support
· 5 months ago Thank you for the kind words, Zoe! Wonderful to hear it worked smoothly in Japan & South Korea. Enjoy your journeys! — Sara
Noah C.
Indonesia · Mar 2026
Exactly what I needed for travelling. Ran hotspot to my laptop with no issues. Made staying connected effortless.
Grace
GotoeSIM Support
· 5 months ago Really appreciate this, Noah! Wonderful to hear it worked smoothly in Japan & South Korea. – Grace, eSIM TopUp Support
Daniel F.
Brazil · Mar 2026
Did the job without any drama. Customer support answered my question quickly. Telling my friends about this.
Sara
GotoeSIM Support
· 5 months ago Really appreciate this, Daniel! Love that you were online the moment you landed in Japan & South Korea. — Sara
Priya N.
Malaysia · Mar 2026
Install took me two tries but was fine after that. Activation was automatic when I arrived.
Grace
GotoeSIM Support
· 5 months ago We're really sorry, Priya. That's not the experience we want for Japan & South Korea. Please contact us at esimtopup.io/support and we'll sort it out. – Grace 💜
Thomas V.
Thailand · Mar 2026
Used this on my trip and it worked perfectly. Signal held up well on trains and in rural areas. Great experience overall.
Sara
GotoeSIM Support
· 5 months ago Thanks a lot, Thomas! Delighted the speeds worked well for you. Safe travels, and see you on your next trip! — Sara, eSIM TopUp Support
Omar N.
India · Mar 2026
Exactly what I needed for travelling. Ran hotspot to my laptop with no issues.
Priya
GotoeSIM Support
· 5 months ago Thank you so much, Omar! Delighted the speeds worked well for you. Come back anytime! — Priya, eSIM TopUp Support
Marco M.
Australia · Mar 2026
Great value compared to roaming charges. Signal held up well on trains and in rural areas. Telling my friends about this.
Tom
GotoeSIM Support
· 5 months ago Really appreciate this, Marco! Love that you were online the moment you landed in Japan & South Korea. — Tom
Priya T.
Poland · Mar 2026
Bought it the night before my flight — smooth process. Data lasted the whole trip with room to spare. Exactly as described — no surprises.
Sophie
GotoeSIM Support
· 5 months ago Thanks for sharing, Priya! Delighted the speeds worked well for you. We're here whenever you travel again. – Sophie, eSIM TopUp Support
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 10GB 30days plan costs $19.20 for 10 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
Lea T. · 4 weeks ago
Can I top up the same eSIM instead of buying a new one?
Mohammed H. · 1 month ago
How long does the QR code take to arrive after payment?
Ji-woo R. · 3 months ago
Is roaming charged extra or is it all included?
Budi C. · 3 months ago
Can I use this for hotspot/tethering?
Arjun S. · 4 months ago
Does the validity start on purchase or on first use?
Sven R. · 5 months ago
Which networks does this connect to?
Sarah D. · 7 months ago
Can I use it in nearby countries too?
Mei B. · 7 months ago
Thanks, installed with no problems on my Samsung.
Wei T. · 7 months ago
Is 5G supported or just 4G?
Wei D. · 9 months ago
How do I check how much data I have left?
Isabella H. · 9 months ago
Great guide, the setup steps were really helpful.
Fatima K. · 1 year ago
Does this work on an iPhone 13?