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
Arjun L.
Mexico · Jan 2026
Install took me two tries but was fine after that. Data lasted the whole trip with room to spare.
David
GotoeSIM Support
· 6 months ago Appreciate you sharing this, Arjun. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at esimtopup.io/support if we can help. – David 💜
Camila L.
Japan · Dec 2025
Install took me two tries but was fine after that. Ran hotspot to my laptop with no issues.
Sara
GotoeSIM Support
· 8 months ago Thanks for the honest feedback, Camila. 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. — Sara
Camila F.
Brazil · Nov 2025
Worked fine but took a little while to connect at first. Speeds were solid for maps, messaging and browsing.
James
GotoeSIM Support
· 8 months ago Appreciate you sharing this, Camila. 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. – James 💜
Mei B.
Poland · Oct 2025
Worked fine but took a little while to connect at first. Signal held up well on trains and in rural areas.
Mark
GotoeSIM Support
· 9 months ago Thank you for taking the time, Mei. 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. – Mark 💜
Budi G.
Malaysia · Oct 2025
Worked fine but took a little while to connect at first. Data lasted the whole trip with room to spare.
Sophie
GotoeSIM Support
· 9 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. – Sophie, eSIM TopUp Support
Wei M.
United Kingdom · Oct 2025
Solid overall, just wish there was a bit more data for the price.
Mark
GotoeSIM Support
· 10 months ago Thanks for the honest feedback, Wei. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. – Mark, eSIM TopUp Support
Kenji P.
Australia · Sep 2025
Good coverage in the city, a bit patchy in remote areas. Topping up was straightforward when I needed more.
Ken
GotoeSIM Support
· 10 months ago Thanks for the honest feedback, Kenji. 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. – Ken 💜
Mateo B.
Philippines · Sep 2025
Good coverage in the city, a bit patchy in remote areas. Ran hotspot to my laptop with no issues.
Anna
GotoeSIM Support
· 10 months ago Appreciate you sharing this, Mateo. 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. — Anna
Ryan K.
Singapore · Sep 2025
Good coverage in the city, a bit patchy in remote areas.
Emma
GotoeSIM Support
· 10 months ago Appreciate you sharing this, Ryan. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. – Emma, eSIM TopUp Support
Liam N.
Poland · Sep 2025
Worked fine but took a little while to connect at first. Data lasted the whole trip with room to spare.
Sara
GotoeSIM Support
· 11 months ago Appreciate you sharing this, Liam. 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. — Sara, eSIM TopUp Support
Anna C.
UAE · Aug 2025
Good coverage in the city, a bit patchy in remote areas. Customer support answered my question quickly.
Yuki
GotoeSIM Support
· 11 months ago Thanks for the honest feedback, Anna. 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. – Yuki, eSIM TopUp Support
Giulia V.
Poland · Aug 2025
Solid overall, just wish there was a bit more data for the price.
Sara
GotoeSIM Support
· 11 months ago Appreciate you sharing this, Giulia. 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
Grace S.
Brazil · Aug 2025
Decent speeds, though slower than I expected in a few spots.
Ingrid
GotoeSIM Support
· 11 months ago Appreciate you sharing this, Grace. 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
Diego W.
Switzerland · Jul 2025
Solid overall, just wish there was a bit more data for the price.
Anna
GotoeSIM Support
· 1 year ago Thank you for taking the time, Diego. 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
Sri B.
Switzerland · 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.
Tom
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Sri. 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
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?