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
Zoe D.
United States · Apr 2025
Installed in minutes by scanning the QR code. Coverage was strong even outside the city. Would definitely buy again.
Tom
GotoeSIM Support
· 1 year ago Thanks a lot, Zoe! So happy the Japan & South Korea eSIM kept you connected. Wishing you many more connected adventures! — Tom, eSIM TopUp Support
Priya R.
United Kingdom · Apr 2025
Bought it the night before my flight — smooth process. I kept my normal number for calls while using this for data.
Priya
GotoeSIM Support
· 1 year ago Cheers, Priya! So pleased it saved you from roaming bills. Safe travels, and see you on your next trip! — Priya
Mei N.
Portugal · Apr 2025
Honestly better than buying a local SIM at the airport. Data lasted the whole trip with room to spare. Made staying connected effortless.
Yuki
GotoeSIM Support
· 1 year ago Really appreciate this, Mei! So pleased it saved you from roaming bills. Come back anytime! — Yuki
Priya W.
Italy · Apr 2025
First time using an eSIM and it was painless in Japan & South Korea. Speeds were solid for maps, messaging and browsing. Exactly as described — no surprises.
James
GotoeSIM Support
· 1 year ago Thanks for sharing, Priya! Great to know the setup was quick and easy. – James, eSIM TopUp Support
Ji-woo H.
Japan · Apr 2025
Solid overall, just wish there was a bit more data for the price.
David
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Ji-woo. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Reach us anytime at esimtopup.io/support if we can help. – David 💜
Anna P.
Singapore · Mar 2025
Saved me a fortune on my holiday. Streaming and video calls worked without buffering.
Mark
GotoeSIM Support
· 1 year ago Thanks a lot, Anna! So happy the Japan & South Korea eSIM kept you connected. — Mark, eSIM TopUp Support
Sofia F.
Mexico · Mar 2025
Saved me a fortune on my holiday in Japan & South Korea. Speeds were solid for maps, messaging and browsing.
Ingrid
GotoeSIM Support
· 1 year ago Thanks for sharing, Sofia! So pleased it saved you from roaming bills. We're here whenever you travel again. – Ingrid, eSIM TopUp Support
Lucia G.
Switzerland · Mar 2025
No more hunting for a SIM card kiosk on arrival. Streaming and video calls worked without buffering. Highly recommend for any traveller.
Ken
GotoeSIM Support
· 1 year ago Thanks for sharing, Lucia! So pleased it saved you from roaming bills. We're here whenever you travel again. — Ken, eSIM TopUp Support
Isabella M.
Singapore · Mar 2025
Connected the moment I landed. Topping up was straightforward when I needed more. Highly recommend for any traveller.
David
GotoeSIM Support
· 1 year ago So glad to hear this, Isabella! Great to know the setup was quick and easy. Enjoy your journeys! — David
Louis B.
Australia · Mar 2025
First time using an eSIM and it was painless. Streaming and video calls worked without buffering. A must-have for international travel.
Grace
GotoeSIM Support
· 1 year ago So glad to hear this, Louis! Thrilled it made staying connected effortless. — Grace, eSIM TopUp Support
Daniel M.
Vietnam · Mar 2025
Great value compared to roaming charges in Japan & South Korea. Data lasted the whole trip with room to spare.
Tom
GotoeSIM Support
· 1 year ago Thank you so much, Daniel! So happy the Japan & South Korea eSIM kept you connected. Wishing you many more connected adventures! – Tom, eSIM TopUp Support
Mateo F.
Japan · Mar 2025
Super easy to set up before I flew out. I kept my normal number for calls while using this for data. Made staying connected effortless.
Emma
GotoeSIM Support
· 1 year ago Thanks for sharing, Mateo! So pleased it saved you from roaming bills. Wishing you many more connected adventures! – Emma 💜
Carlos V.
Thailand · Mar 2025
Exactly what I needed for travelling in Japan & South Korea. I kept my normal number for calls while using this for data.
Yuki
GotoeSIM Support
· 1 year ago Thanks a lot, Carlos! Wonderful to hear it worked smoothly in Japan & South Korea. Come back anytime! — Yuki
Linh V.
Singapore · Mar 2025
Saved me a fortune on my holiday. Activation was automatic when I arrived. Would definitely buy again.
Priya
GotoeSIM Support
· 1 year ago Thanks for sharing, Linh! Thrilled it made staying connected effortless. Wishing you many more connected adventures! — Priya
Pablo K.
France · Mar 2025
Solid overall, just wish there was a bit more data for the price.
Sara
GotoeSIM Support
· 1 year ago So sorry to hear this, Pablo. We'd love the chance to make this right. Reach our team at esimtopup.io/support so we can help right away. — Sara, eSIM TopUp Support
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?