Japan & South Korea eSIM — reviews & details
Japan & South Korea 1GB 7Days · 1 GB · 7 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea LG Uplus 5G SKTelecom 5G
Traveller reviews
Sri F.
Canada · Jan 2026
Solid overall, just wish there was a bit more data for the price.
Priya
GotoeSIM Support
· 6 months ago Thank you for taking the time, Sri. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at gotoesim.com/support. – Priya, GotoeSIM Support
Grace K.
Italy · Jan 2026
Worked fine but took a little while to connect at first. I kept my normal number for calls while using this for data.
Priya
GotoeSIM Support
· 6 months ago Thank you for taking the time, Grace. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at gotoesim.com/support. – Priya, GotoeSIM Support
Linh C.
France · Dec 2025
Solid overall, just wish there was a bit more data for the price.
Diego
GotoeSIM Support
· 7 months ago Appreciate you sharing this, Linh. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Any questions, our team is at gotoesim.com/support. — Diego, GotoeSIM Support
Louis R.
Italy · Nov 2025
Good coverage in the city, a bit patchy in remote areas. Customer support answered my question quickly.
David
GotoeSIM Support
· 8 months ago Thank you for taking the time, Louis. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Reach us anytime at gotoesim.com/support if we can help. — David
Linh W.
Mexico · Nov 2025
Decent speeds, though slower than I expected in a few spots. Streaming and video calls worked without buffering.
Mark
GotoeSIM Support
· 8 months ago Appreciate you sharing this, Linh. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Reach us anytime at gotoesim.com/support if we can help. — Mark
Lucia G.
Netherlands · Aug 2025
Install took me two tries but was fine after that.
Sara
GotoeSIM Support
· 11 months ago Appreciate you sharing this, Lucia. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Reach us anytime at gotoesim.com/support if we can help. – Sara, GotoeSIM Support
Thomas D.
Indonesia · Aug 2025
Worked fine but took a little while to connect at first. Signal held up well on trains and in rural areas.
Ingrid
GotoeSIM Support
· 11 months ago Thanks for the honest feedback, Thomas. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at gotoesim.com/support. — Ingrid, GotoeSIM Support
Arjun T.
Canada · May 2025
Solid overall, just wish there was a bit more data for the price.
Mark
GotoeSIM Support
· 1 year ago Thank you for taking the time, Arjun. Good to hear it did the job, and we're working to make it even better. Reach us anytime at gotoesim.com/support if we can help. — Mark
Carlos N.
Egypt · May 2025
Good coverage in the city, a bit patchy in remote areas. Ran hotspot to my laptop with no issues.
Mark
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Carlos. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Any questions, our team is at gotoesim.com/support. – Mark, GotoeSIM Support
Katya R.
Ireland · May 2025
Install took me two tries but was fine after that.
Ken
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Katya. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at gotoesim.com/support if we can help. – Ken, GotoeSIM Support
Zoe V.
Sweden · Apr 2025
Good coverage in the city, a bit patchy in remote areas.
Sophie
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Zoe. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at gotoesim.com/support. — Sophie, GotoeSIM Support
Thomas T.
Vietnam · Apr 2025
Solid overall, just wish there was a bit more data for the price.
David
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Thomas. Glad it mostly worked for you in Japan & South Korea — we're always improving our coverage. Reach us anytime at gotoesim.com/support if we can help. – David, GotoeSIM Support
Liam S.
South Korea · Mar 2025
Decent speeds, though slower than I expected in a few spots. Activation was automatic when I arrived.
Ingrid
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Liam. Good to hear it did the job, and we're working to make it even better. Reach us anytime at gotoesim.com/support if we can help. — Ingrid
Haruto G.
Netherlands · Mar 2025
Worked fine but took a little while to connect at first. I kept my normal number for calls while using this for data.
James
GotoeSIM Support
· 1 year ago Thank you for taking the time, Haruto. Good to hear it did the job, and we're working to make it even better. Reach us anytime at gotoesim.com/support if we can help. — James
Kenji N.
Netherlands · Mar 2025
Install took me two tries but was fine after that.
Laura
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. Reach us anytime at gotoesim.com/support if we can help. — Laura
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 1GB 7Days plan costs $2.03 for 1 GB over 7 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 GotoeSIM 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
Carlos P. · 2 months ago
Can I top up the same eSIM instead of buying a new one?
Yes Carlos, you can top up the same eSIM anytime — no need to buy a new one. — Sara, GotoeSIM Support
Hana V. · 4 months ago
Is 5G supported or just 4G?
Yes Hana, 5G is supported where the local network offers it, otherwise fast 4G. – Laura, GotoeSIM Support
Aisha N. · 5 months ago
Is roaming charged extra or is it all included?
No surprise fees, Aisha! Roaming is part of the plan and never billed separately. — Mark
Louis G. · 5 months ago
How long does the QR code take to arrive after payment?
Your QR code arrives instantly, Louis — within seconds of payment, by email and in your account. – Grace, GotoeSIM Support
Wei L. · 5 months ago
Do I need to install it before I travel or after I arrive?
Install on Wi-Fi before you fly, Wei — it switches on when you land. — Priya
Priya R. · 8 months ago
Can I use it in nearby countries too?
For nearby countries, Priya, a regional plan may suit you better — happy to help you pick. — Ken, GotoeSIM Support
Lucia P. · 9 months ago
Does this work on an iPhone 13?
Yes Lucia, it works on iPhone XS and newer — just add the eSIM under Settings › Cellular › Add eSIM. – Omar 💜
Lucas D. · 9 months ago
How do I check how much data I have left?
You can check remaining data anytime in the GotoeSIM app under My eSIMs, Lucas. – Ingrid, GotoeSIM Support
Katya C. · 10 months ago
Which networks does this connect to?
You'll be on top local networks, Katya — full details are on the plan page under Coverage. – Tom 💜
Somchai B. · 11 months ago
Thanks, installed with no problems on my Samsung.
It works great on modern Samsung phones, Somchai! Add it via SIM manager and you're set. – Yuki, GotoeSIM Support
Yuki P. · 11 months ago
Does the validity start on purchase or on first use?
The clock starts on first use in-country, Yuki, so buying early is totally fine. — Sophie, GotoeSIM Support
Priya S. · 1 year ago
Will this keep my WhatsApp active with my home number?
Yes Priya, WhatsApp keeps working with your home number — the eSIM only carries data. — James, GotoeSIM Support