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
Ravi G.
Saudi Arabia · Jan 2026
Installed in minutes by scanning the QR code. Customer support answered my question quickly. Five stars from me.
David
GotoeSIM Support
· 6 months ago Really appreciate this, Ravi! Delighted the speeds worked well for you. — David
Mohammed B.
India · Jan 2026
Saved me a fortune on my holiday. Signal held up well on trains and in rural areas.
James
GotoeSIM Support
· 6 months ago Cheers, Mohammed! Delighted the speeds worked well for you. Safe travels, and see you on your next trip! – James, eSIM TopUp Support
Aisha C.
United States · Jan 2026
Exactly what I needed for travelling. Activation was automatic when I arrived.
Ingrid
GotoeSIM Support
· 6 months ago Cheers, Aisha! Delighted the speeds worked well for you. We're here whenever you travel again. – Ingrid, eSIM TopUp Support
Ryan W.
Italy · Jan 2026
Saved me a fortune on my holiday. Topping up was straightforward when I needed more. Telling my friends about this.
Priya
GotoeSIM Support
· 6 months ago Cheers, Ryan! Delighted the speeds worked well for you. Safe travels, and see you on your next trip! – Priya, eSIM TopUp Support
Emma T.
Mexico · Jan 2026
Saved me a fortune on my holiday. Topping up was straightforward when I needed more. Exactly as described — no surprises.
Sophie
GotoeSIM Support
· 6 months ago Thanks for sharing, Emma! Wonderful to hear it worked smoothly in Japan & South Korea. We're here whenever you travel again. – Sophie 💜
Hugo H.
United Kingdom · Jan 2026
Bought it the night before my flight — smooth process. Data lasted the whole trip with room to spare. Great experience overall.
Mark
GotoeSIM Support
· 6 months ago Thank you for the kind words, Hugo! Thrilled it made staying connected effortless. Come back anytime! – Mark 💜
Arjun L.
Mexico · Jan 2026
Install took me two tries but was fine after that. Data lasted the whole trip with room to spare.
David
GotoeSIM Support
· 6 months ago Appreciate you sharing this, Arjun. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at esimtopup.io/support if we can help. – David 💜
Ingrid P.
Australia · Jan 2026
Saved me a fortune on my holiday. Speeds were solid for maps, messaging and browsing. Would definitely buy again.
James
GotoeSIM Support
· 6 months ago Thank you for the kind words, Ingrid! Wonderful to hear it worked smoothly in Japan & South Korea. We're here whenever you travel again. – James, eSIM TopUp Support
Sofia L.
Egypt · Jan 2026
Honestly better than buying a local SIM at the airport in Japan & South Korea. Speeds were solid for maps, messaging and browsing.
David
GotoeSIM Support
· 6 months ago Thank you for the kind words, Sofia! So happy the Japan & South Korea eSIM kept you connected. Safe travels, and see you on your next trip! — David
Min-jun P.
Portugal · Jan 2026
Honestly better than buying a local SIM at the airport. I kept my normal number for calls while using this for data. Would definitely buy again.
Yuki
GotoeSIM Support
· 6 months ago Thank you for the kind words, Min-jun! So happy the Japan & South Korea eSIM kept you connected. Safe travels, and see you on your next trip! – Yuki 💜
Emma S.
Portugal · Jan 2026
Honestly better than buying a local SIM at the airport. Activation was automatic when I arrived.
Mark
GotoeSIM Support
· 6 months ago Cheers, Emma! Thrilled it made staying connected effortless. Wishing you many more connected adventures! – Mark, eSIM TopUp Support
Ji-woo G.
Ireland · Jan 2026
Honestly better than buying a local SIM at the airport. Coverage was strong even outside the city. Zero regrets.
Priya
GotoeSIM Support
· 6 months ago Thanks for sharing, Ji-woo! So happy the Japan & South Korea eSIM kept you connected. Wishing you many more connected adventures! — Priya
Grace T.
Switzerland · Jan 2026
Did the job without any drama. Coverage was strong even outside the city. Telling my friends about this.
Emma
GotoeSIM Support
· 6 months ago So glad to hear this, Grace! Wonderful to hear it worked smoothly in Japan & South Korea. Wishing you many more connected adventures! – Emma, eSIM TopUp Support
Lucas T.
Poland · Jan 2026
No more hunting for a SIM card kiosk on arrival in Japan & South Korea. Speeds were solid for maps, messaging and browsing. Zero regrets.
Sophie
GotoeSIM Support
· 7 months ago So glad to hear this, Lucas! So happy the Japan & South Korea eSIM kept you connected. Come back anytime! – Sophie, eSIM TopUp Support
Camila L.
Poland · Jan 2026
Connected the moment I landed. Streaming and video calls worked without buffering. Telling my friends about this.
Anna
GotoeSIM Support
· 7 months ago Really appreciate this, Camila! So pleased it saved you from roaming bills. Wishing you many more connected adventures! – Anna, 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?