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
Carlos V.
Canada · Jul 2025
Decent speeds, though slower than I expected in a few spots. I kept my normal number for calls while using this for data.
Yuki
GotoeSIM Support
· 1 year ago Thank you for taking the time, Carlos. 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 💜
Viktor P.
United States · Jun 2025
Worked fine but took a little while to connect at first.
David
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Viktor. 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, eSIM TopUp Support
Ananya B.
Saudi Arabia · Jun 2025
Good coverage in the city, a bit patchy in remote areas. Streaming and video calls worked without buffering.
Priya
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Ananya. 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. – Priya, eSIM TopUp Support
Kenji P.
Netherlands · Jun 2025
Install took me two tries but was fine after that.
Omar
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Kenji. 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
Min-jun S.
India · May 2025
Decent speeds, though slower than I expected in a few spots.
Yuki
GotoeSIM Support
· 1 year ago Thank you for taking the time, Min-jun. 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. – Yuki 💜
Olivia C.
Germany · Apr 2025
Good coverage in the city, a bit patchy in remote areas. Coverage was strong even outside the city.
Grace
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Olivia. 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, eSIM TopUp Support
Lea K.
Ireland · Apr 2025
Worked fine but took a little while to connect at first.
Omar
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Lea. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at esimtopup.io/support if we can help. — Omar, eSIM TopUp Support
Lea M.
Singapore · Apr 2025
Decent speeds, though slower than I expected in a few spots. Signal held up well on trains and in rural areas.
Mark
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Lea. 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. – Mark 💜
Lea M.
Mexico · Apr 2025
Good coverage in the city, a bit patchy in remote areas. Signal held up well on trains and in rural areas.
David
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Lea. 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
Max F.
Italy · Apr 2025
Good coverage in the city, a bit patchy in remote areas. Data lasted the whole trip with room to spare.
Tom
GotoeSIM Support
· 1 year ago Thank you for taking the time, Max. 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. — Tom, eSIM TopUp Support
Priya C.
New Zealand · Apr 2025
Decent speeds, though slower than I expected in a few spots.
Priya
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Priya. 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
Sven B.
Saudi Arabia · Apr 2025
Install took me two tries but was fine after that. Streaming and video calls worked without buffering.
James
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Sven. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. — James
James R.
Spain · Mar 2025
Worked fine but took a little while to connect at first. Customer support answered my question quickly.
Mark
GotoeSIM Support
· 1 year ago Appreciate you sharing this, James. 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. — Mark
Isabella H.
Saudi Arabia · Mar 2025
Decent speeds, though slower than I expected in a few spots. Ran hotspot to my laptop with no issues.
James
GotoeSIM Support
· 1 year ago Thank you for taking the time, Isabella. 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 💜
Louis W.
Sweden · Mar 2025
Install took me two tries but was fine after that.
Sara
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Louis. 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. — Sara, 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?