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
Sarah L.
Mexico · Jan 2026
Installed in minutes by scanning the QR code. Data lasted the whole trip with room to spare.
Mark
GotoeSIM Support
· 6 months ago Really appreciate this, Sarah! Thrilled it made staying connected effortless. Enjoy your journeys! – Mark, eSIM TopUp Support
Katya L.
South Korea · Jan 2026
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.
David
GotoeSIM Support
· 6 months ago Appreciate you sharing this, Katya. 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
Wei L.
Egypt · Jan 2026
Good coverage in the city, a bit patchy in remote areas.
Tom
GotoeSIM Support
· 6 months ago We're really sorry, Wei. We'd love the chance to make this right. Please contact us at esimtopup.io/support and we'll sort it out. – Tom 💜
Sarah T.
Switzerland · Jan 2026
No more hunting for a SIM card kiosk on arrival. Customer support answered my question quickly. Would definitely buy again.
Anna
GotoeSIM Support
· 6 months ago Thank you for the kind words, Sarah! So pleased it saved you from roaming bills. We're here whenever you travel again. – Anna, eSIM TopUp Support
Linh T.
Japan · Jan 2026
Bought it the night before my flight — smooth process in Japan & South Korea. Customer support answered my question quickly. Zero regrets.
Yuki
GotoeSIM Support
· 6 months ago Thank you so much, Linh! Great to know the setup was quick and easy. Come back anytime! – Yuki 💜
Louis N.
Canada · Jan 2026
Bought it the night before my flight — smooth process in Japan & South Korea. Ran hotspot to my laptop with no issues. Made staying connected effortless.
Laura
GotoeSIM Support
· 6 months ago Really appreciate this, Louis! Wonderful to hear it worked smoothly in Japan & South Korea. Safe travels, and see you on your next trip! – Laura 💜
Giulia S.
Poland · Jan 2026
Used this on my trip and it worked perfectly. Customer support answered my question quickly. Highly recommend for any traveller.
Anna
GotoeSIM Support
· 6 months ago Thank you so much, Giulia! So pleased it saved you from roaming bills. Enjoy your journeys! – Anna 💜
Sri P.
Thailand · Jan 2026
No more hunting for a SIM card kiosk on arrival. Activation was automatic when I arrived.
Priya
GotoeSIM Support
· 6 months ago Cheers, Sri! So pleased it saved you from roaming bills. Wishing you many more connected adventures! – Priya, eSIM TopUp Support
Sofia B.
Portugal · Jan 2026
Great value compared to roaming charges. Coverage was strong even outside the city. Great experience overall.
Omar
GotoeSIM Support
· 6 months ago Really appreciate this, Sofia! Delighted the speeds worked well for you. Come back anytime! — Omar
Elena F.
Portugal · Jan 2026
Did the job without any drama. Setup instructions in the app were clear and simple. Five stars from me.
Tom
GotoeSIM Support
· 6 months ago Really appreciate this, Elena! Wonderful to hear it worked smoothly in Japan & South Korea. Enjoy your journeys! – Tom, eSIM TopUp Support
Ryan B.
South Korea · Jan 2026
First time using an eSIM and it was painless. Activation was automatic when I arrived. Great experience overall.
Laura
GotoeSIM Support
· 6 months ago So glad to hear this, Ryan! Love that you were online the moment you landed in Japan & South Korea. Safe travels, and see you on your next trip! — Laura, eSIM TopUp Support
Aisha N.
Switzerland · Jan 2026
Installed in minutes by scanning the QR code. Ran hotspot to my laptop with no issues. A must-have for international travel.
Omar
GotoeSIM Support
· 7 months ago Thanks for sharing, Aisha! Thrilled it made staying connected effortless. Wishing you many more connected adventures! – Omar 💜
Lea C.
Portugal · Jan 2026
Did the job without any drama. Speeds were solid for maps, messaging and browsing. Five stars from me.
Mark
GotoeSIM Support
· 7 months ago Thanks a lot, Lea! So pleased it saved you from roaming bills. – Mark, eSIM TopUp Support
Arjun L.
Japan · Jan 2026
Honestly better than buying a local SIM at the airport. Setup instructions in the app were clear and simple. Telling my friends about this.
Anna
GotoeSIM Support
· 7 months ago So glad to hear this, Arjun! So pleased it saved you from roaming bills. Enjoy your journeys! – Anna 💜
Anna D.
Ireland · Jan 2026
Used this on my trip and it worked perfectly. Activation was automatic when I arrived in Japan & South Korea.
Grace
GotoeSIM Support
· 7 months ago Thank you so much, Anna! Great to know the setup was quick and easy. – Grace 💜
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?