Japan & South Korea eSIM — reviews & details
Japan & South Korea 1GB/Day · 1 GB/day · 1 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea SKTelecom 5G LG Uplus 5G
Traveller reviews
Sri N.
Philippines · Apr 2025
Good coverage in the city, a bit patchy in remote areas.
Tom
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Sri. 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
Wei P.
Canada · Apr 2025
Install took me two tries but was fine after that.
Grace
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Wei. 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
Max R.
Spain · Apr 2025
Install took me two tries but was fine after that.
Ingrid
GotoeSIM Support
· 1 year ago Thank you for taking the time, Max. 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
Giulia G.
Philippines · Apr 2025
Decent speeds, though slower than I expected in a few spots.
Grace
GotoeSIM Support
· 1 year ago Thank you for taking the time, Giulia. 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. — Grace
Nguyen W.
United States · Feb 2025
Worked fine but took a little while to connect at first. Customer support answered my question quickly.
Sophie
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Nguyen. 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. – Sophie 💜
Ananya H.
Mexico · Feb 2025
Worked fine but took a little while to connect at first. Customer support answered my question quickly.
David
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Ananya. 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 💜
Ananya W.
Thailand · Jan 2025
Decent speeds, though slower than I expected in a few spots. Coverage was strong even outside the city.
Sophie
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Ananya. 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. — Sophie, eSIM TopUp Support
James T.
Japan · Jan 2025
Worked fine but took a little while to connect at first. Signal held up well on trains and in rural areas.
Laura
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, James. 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, eSIM TopUp Support
Ji-woo W.
Philippines · Dec 2024
Install took me two tries but was fine after that. Setup instructions in the app were clear and simple.
Emma
GotoeSIM Support
· 1 year ago Thank you for taking the time, 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. — Emma, eSIM TopUp Support
Andre B.
Germany · Dec 2024
Decent speeds, though slower than I expected in a few spots.
David
GotoeSIM Support
· 1 year ago Thank you for taking the time, Andre. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. — David
Yuki S.
Turkey · Nov 2024
Decent speeds, though slower than I expected in a few spots.
Laura
GotoeSIM Support
· 1 year ago Thank you for taking the time, Yuki. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. – Laura, eSIM TopUp Support
Sophia L.
New Zealand · Oct 2024
Decent speeds, though slower than I expected in a few spots. The QR code arrived instantly by email.
Mark
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Sophia. 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
Ethan P.
India · Oct 2024
Solid overall, just wish there was a bit more data for the price. Customer support answered my question quickly.
Diego
GotoeSIM Support
· 1 year ago Thank you for taking the time, Ethan. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. – Diego 💜
Ryan B.
Poland · Oct 2024
Worked fine but took a little while to connect at first.
Ingrid
GotoeSIM Support
· 1 year ago Appreciate you sharing this, 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. – Ingrid, eSIM TopUp Support
Lucas H.
South Korea · Sep 2024
Install took me two tries but was fine after that.
Sophie
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Lucas. 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. — Sophie
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 1GB/Day plan costs $2.03 for 1 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
Marco K. · 1 week ago
How long does the QR code take to arrive after payment?
Beatriz S. · 1 month ago
Does this work on an iPhone 13?
Budi D. · 3 months ago
Will this keep my WhatsApp active with my home number?
Lucas P. · 4 months ago
Is 5G supported or just 4G?
Grace B. · 6 months ago
Thanks, installed with no problems on my Samsung.
Liam L. · 6 months ago
Does the validity start on purchase or on first use?
Beatriz V. · 8 months ago
Which networks does this connect to?
Haruto G. · 9 months ago
Is roaming charged extra or is it all included?
Ryan N. · 9 months ago
Can I use it in nearby countries too?
Ava B. · 10 months ago
Do I need to install it before I travel or after I arrive?
Camila P. · 11 months ago
Can I top up the same eSIM instead of buying a new one?
Sofia B. · 11 months ago
Can I use this for hotspot/tethering?