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
James C.
Philippines · Nov 2025
Decent speeds, though slower than I expected in a few spots.
James
GotoeSIM Support
· 9 months ago Thank you for taking the time, James. 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. – James, eSIM TopUp Support
Mateo R.
Egypt · Nov 2025
Install took me two tries but was fine after that. Setup instructions in the app were clear and simple.
David
GotoeSIM Support
· 9 months ago Appreciate you sharing this, Mateo. 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. — David
Aisha T.
United States · Nov 2025
Worked fine but took a little while to connect at first. Coverage was strong even outside the city.
Tom
GotoeSIM Support
· 9 months ago Appreciate you sharing this, Aisha. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at esimtopup.io/support if we can help. — Tom, eSIM TopUp Support
Aisha F.
France · Oct 2025
Worked fine but took a little while to connect at first.
David
GotoeSIM Support
· 10 months ago Thank you for taking the time, Aisha. 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. — David
Lea H.
UAE · Sep 2025
Decent speeds, though slower than I expected in a few spots. Speeds were solid for maps, messaging and browsing.
Grace
GotoeSIM Support
· 10 months ago Thanks for the honest feedback, Lea. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. — Grace
Yuki T.
UAE · Sep 2025
Install took me two tries but was fine after that. Customer support answered my question quickly.
David
GotoeSIM Support
· 11 months ago Appreciate you sharing this, Yuki. 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 💜
Nguyen D.
Spain · Sep 2025
Good coverage in the city, a bit patchy in remote areas.
Anna
GotoeSIM Support
· 11 months ago Thanks for the honest feedback, Nguyen. 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. – Anna, eSIM TopUp Support
Beatriz F.
Saudi Arabia · Sep 2025
Worked fine but took a little while to connect at first.
Ingrid
GotoeSIM Support
· 11 months ago Thanks for the honest feedback, Beatriz. 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. – Ingrid 💜
Isabella R.
Vietnam · Aug 2025
Decent speeds, though slower than I expected in a few spots. The QR code arrived instantly by email.
Anna
GotoeSIM Support
· 11 months ago Appreciate you sharing this, Isabella. 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
Olivia L.
Switzerland · Aug 2025
Install took me two tries but was fine after that.
Priya
GotoeSIM Support
· 11 months ago Appreciate you sharing this, Olivia. 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
Wei R.
Portugal · Jul 2025
Solid overall, just wish there was a bit more data for the price. I kept my normal number for calls while using this for data.
Omar
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Wei. 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. – Omar, eSIM TopUp Support
Ingrid W.
Indonesia · Jul 2025
Solid overall, just wish there was a bit more data for the price. I kept my normal number for calls while using this for data.
Emma
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Ingrid. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at esimtopup.io/support if we can help. – Emma 💜
Ravi F.
Saudi Arabia · Jul 2025
Solid overall, just wish there was a bit more data for the price.
Tom
GotoeSIM Support
· 1 year 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. – Tom, eSIM TopUp Support
Katya W.
Saudi Arabia · Jun 2025
Install took me two tries but was fine after that.
Anna
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Katya. 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. — Anna, eSIM TopUp Support
Min-jun N.
Saudi Arabia · Jun 2025
Solid overall, just wish there was a bit more data for the price.
Emma
GotoeSIM Support
· 1 year ago Thank you for taking the time, Min-jun. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at esimtopup.io/support if we can help. — Emma
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. · 5 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. · 7 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. · 10 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.