Japan & South Korea eSIM — reviews & details
Japan & South Korea 10GB/Day · 10 GB/day · 1 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea SKTelecom 5G LG Uplus 5G
Traveller reviews
Hana R.
Egypt · Jul 2026
Worked fine but took a little while to connect at first.
Ingrid
GotoeSIM Support
· 1 month ago Appreciate you sharing this, Hana. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. — Ingrid, eSIM TopUp Support
Katya M.
Spain · Jul 2026
Decent speeds, though slower than I expected in a few spots. Ran hotspot to my laptop with no issues.
Grace
GotoeSIM Support
· 1 month ago Thank you for taking the time, Katya. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at esimtopup.io/support if we can help. — Grace, eSIM TopUp Support
Somchai R.
Vietnam · Jul 2026
Solid overall, just wish there was a bit more data for the price. Customer support answered my question quickly.
Yuki
GotoeSIM Support
· 1 month ago Appreciate you sharing this, Somchai. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. — Yuki
Haruto S.
Singapore · Apr 2026
Worked fine but took a little while to connect at first. Customer support answered my question quickly.
Laura
GotoeSIM Support
· 3 months ago Appreciate you sharing this, Haruto. 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. — Laura
Arjun W.
Ireland · Apr 2026
Good coverage in the city, a bit patchy in remote areas. Speeds were solid for maps, messaging and browsing.
Tom
GotoeSIM Support
· 4 months ago Thank you for taking the time, Arjun. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. – Tom, eSIM TopUp Support
Daniel F.
Egypt · Mar 2026
Solid overall, just wish there was a bit more data for the price. Customer support answered my question quickly.
Laura
GotoeSIM Support
· 5 months ago Appreciate you sharing this, Daniel. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at esimtopup.io/support if we can help. — Laura
Nguyen L.
Sweden · Feb 2026
Worked fine but took a little while to connect at first. The QR code arrived instantly by email.
Priya
GotoeSIM Support
· 5 months ago Thank you for taking the time, Nguyen. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. — Priya, eSIM TopUp Support
Ryan G.
United Kingdom · Feb 2026
Solid overall, just wish there was a bit more data for the price. Coverage was strong even outside the city.
Mark
GotoeSIM Support
· 6 months ago Thank you for taking the time, Ryan. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. — Mark
Ravi B.
France · Jan 2026
Good coverage in the city, a bit patchy in remote areas. Ran hotspot to my laptop with no issues.
Anna
GotoeSIM Support
· 6 months ago Thanks for the honest feedback, Ravi. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. – Anna 💜
Ryan F.
Australia · Jan 2026
Decent speeds, though slower than I expected in a few spots. Signal held up well on trains and in rural areas.
Ken
GotoeSIM Support
· 7 months ago Thank you for taking the time, Ryan. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. – Ken, eSIM TopUp Support
Sri G.
France · Jan 2026
Worked fine but took a little while to connect at first. Data lasted the whole trip with room to spare.
Mark
GotoeSIM Support
· 7 months ago Thank you for taking the time, Sri. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at esimtopup.io/support if we can help. – Mark 💜
Andre H.
Spain · Dec 2025
Decent speeds, though slower than I expected in a few spots.
Yuki
GotoeSIM Support
· 7 months ago Thank you for taking the time, Andre. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. – Yuki, eSIM TopUp Support
Beatriz M.
South Korea · Dec 2025
Install took me two tries but was fine after that. Streaming and video calls worked without buffering.
Omar
GotoeSIM Support
· 7 months ago Thank you for taking the time, Beatriz. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. — Omar
Budi R.
Portugal · Nov 2025
Worked fine but took a little while to connect at first.
Ingrid
GotoeSIM Support
· 8 months ago Appreciate you sharing this, Budi. 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. – Ingrid 💜
Anna H.
Saudi Arabia · Nov 2025
Solid overall, just wish there was a bit more data for the price.
David
GotoeSIM Support
· 8 months ago Thanks for the honest feedback, Anna. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at esimtopup.io/support if we can help. — David, eSIM TopUp Support
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 10GB/Day plan costs $14.18 for 10 GB/day over 1 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
Sven N. · 4 weeks ago
Which networks does this connect to?
Ryan W. · 2 months ago
Does the validity start on purchase or on first use?
Fatima G. · 3 months ago
Can I use this for hotspot/tethering?
James C. · 4 months ago
Do I need to install it before I travel or after I arrive?
Ji-woo H. · 6 months ago
Is 5G supported or just 4G?
Sven S. · 6 months ago
How long does the QR code take to arrive after payment?
Zoe G. · 7 months ago
Is roaming charged extra or is it all included?
Lea F. · 7 months ago
How do I check how much data I have left?
Omar P. · 9 months ago
Can I use it in nearby countries too?
Thomas M. · 10 months ago
Does this work on an iPhone 13?
Pablo B. · 1 year ago
Great guide, the setup steps were really helpful.
Mohammed N. · 1 year ago
Thanks, installed with no problems on my Samsung.