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
Hugo F.
New Zealand · May 2026
Saved me a fortune on my holiday. Speeds were solid for maps, messaging and browsing.
Mark
GotoeSIM Support
· 2 months ago Thank you for the kind words, Hugo! Delighted the speeds worked well for you. – Mark 💜
Marco W.
Netherlands · May 2026
Good coverage in the city, a bit patchy in remote areas. Setup instructions in the app were clear and simple.
Tom
GotoeSIM Support
· 2 months ago Apologies for the trouble, Marco. That's not the experience we want for Japan & South Korea. Please contact us at esimtopup.io/support and we'll sort it out. — Tom, eSIM TopUp Support
Omar G.
Australia · May 2026
Bought it the night before my flight — smooth process. Data lasted the whole trip with room to spare. Great experience overall.
Sara
GotoeSIM Support
· 2 months ago Really appreciate this, Omar! Great to know the setup was quick and easy. – Sara, eSIM TopUp Support
Sofia V.
Spain · May 2026
No more hunting for a SIM card kiosk on arrival. Coverage was strong even outside the city.
Ingrid
GotoeSIM Support
· 2 months ago Really appreciate this, Sofia! Great to know the setup was quick and easy. We're here whenever you travel again. – Ingrid 💜
Viktor F.
United Kingdom · May 2026
Honestly better than buying a local SIM at the airport in Japan & South Korea. Coverage was strong even outside the city. Telling my friends about this.
Yuki
GotoeSIM Support
· 3 months ago Cheers, Viktor! So pleased it saved you from roaming bills. – Yuki 💜
Sven F.
Indonesia · May 2026
Used this on my trip and it worked perfectly. I kept my normal number for calls while using this for data.
Mark
GotoeSIM Support
· 3 months ago Cheers, Sven! Wonderful to hear it worked smoothly in Japan & South Korea. — Mark, eSIM TopUp Support
Fatima V.
Brazil · May 2026
Used this on my trip and it worked perfectly. Data lasted the whole trip with room to spare.
James
GotoeSIM Support
· 3 months ago Thanks a lot, Fatima! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! — James, eSIM TopUp Support
Nadia H.
Germany · May 2026
Did the job without any drama. Coverage was strong even outside the city.
Ingrid
GotoeSIM Support
· 3 months ago Thank you for the kind words, Nadia! Delighted the speeds worked well for you. Come back anytime! – Ingrid, eSIM TopUp Support
Anna N.
France · May 2026
Saved me a fortune on my holiday. Activation was automatic when I arrived. Would definitely buy again.
Yuki
GotoeSIM Support
· 3 months ago Thanks a lot, Anna! So pleased it saved you from roaming bills. Safe travels, and see you on your next trip! — Yuki
Olivia D.
Mexico · May 2026
Bought it the night before my flight — smooth process. Signal held up well on trains and in rural areas. Would definitely buy again.
Priya
GotoeSIM Support
· 3 months ago Thanks for sharing, Olivia! So pleased it saved you from roaming bills. – Priya, eSIM TopUp Support
Min-jun L.
Switzerland · May 2026
First time using an eSIM and it was painless. Signal held up well on trains and in rural areas.
Priya
GotoeSIM Support
· 3 months ago Cheers, Min-jun! So pleased it saved you from roaming bills. Come back anytime! – Priya, eSIM TopUp Support
Marco B.
Indonesia · May 2026
Honestly better than buying a local SIM at the airport in Japan & South Korea. The QR code arrived instantly by email. Highly recommend for any traveller.
Anna
GotoeSIM Support
· 3 months ago Really appreciate this, Marco! So pleased it saved you from roaming bills. Safe travels, and see you on your next trip! – Anna 💜
Olivia S.
Spain · May 2026
Saved me a fortune on my holiday in Japan & South Korea. Customer support answered my question quickly. Exactly as described — no surprises.
Omar
GotoeSIM Support
· 3 months ago So glad to hear this, Olivia! Great to know the setup was quick and easy. Wishing you many more connected adventures! — Omar
Sophia V.
United States · May 2026
Installed in minutes by scanning the QR code. Coverage was strong even outside the city. Will use eSIM TopUp for my next trip for sure.
Yuki
GotoeSIM Support
· 3 months ago Really appreciate this, Sophia! Love that you were online the moment you landed in Japan & South Korea. Come back anytime! — Yuki, eSIM TopUp Support
Louis V.
Turkey · May 2026
Good coverage in the city, a bit patchy in remote areas.
Priya
GotoeSIM Support
· 3 months ago Thank you for taking the time, Louis. 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. — Priya
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?