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
Mateo T.
Malaysia · Feb 2026
First time using an eSIM and it was painless. Topping up was straightforward when I needed more. Five stars from me.
Sara
GotoeSIM Support
· 6 months ago Thanks for sharing, Mateo! Wonderful to hear it worked smoothly in Japan & South Korea. Safe travels, and see you on your next trip! – Sara 💜
Ananya C.
Thailand · Feb 2026
No more hunting for a SIM card kiosk on arrival. Signal held up well on trains and in rural areas. Five stars from me.
Mark
GotoeSIM Support
· 6 months ago Really appreciate this, Ananya! Love that you were online the moment you landed in Japan & South Korea. Wishing you many more connected adventures! — Mark, eSIM TopUp Support
Nadia F.
Vietnam · Feb 2026
Great value compared to roaming charges in Japan & South Korea. Streaming and video calls worked without buffering. Exactly as described — no surprises.
Omar
GotoeSIM Support
· 6 months ago Thank you so much, Nadia! So pleased it saved you from roaming bills. – Omar, eSIM TopUp Support
Mateo G.
Malaysia · Feb 2026
Decent speeds, though slower than I expected in a few spots. Customer support answered my question quickly.
Omar
GotoeSIM Support
· 6 months ago We're really sorry, Mateo. That's not the experience we want for Japan & South Korea. Please contact us at esimtopup.io/support and we'll sort it out. — Omar
Ji-woo N.
Poland · Feb 2026
First time using an eSIM and it was painless in Japan & South Korea. I kept my normal number for calls while using this for data. Zero regrets.
Grace
GotoeSIM Support
· 6 months ago Thank you so much, Ji-woo! Love that you were online the moment you landed in Japan & South Korea. We're here whenever you travel again. — Grace, eSIM TopUp Support
Olivia W.
Italy · Feb 2026
Great value compared to roaming charges. Customer support answered my question quickly. Made staying connected effortless.
Yuki
GotoeSIM Support
· 6 months ago Thanks for sharing, Olivia! Great to know the setup was quick and easy. – Yuki 💜
Emma H.
Saudi Arabia · Feb 2026
Super easy to set up before I flew out. Customer support answered my question quickly. Would definitely buy again.
David
GotoeSIM Support
· 6 months ago Thank you for the kind words, Emma! Love that you were online the moment you landed in Japan & South Korea. Wishing you many more connected adventures! – David, eSIM TopUp Support
Camila C.
Canada · Feb 2026
Honestly better than buying a local SIM at the airport in Japan & South Korea. Coverage was strong even outside the city.
Anna
GotoeSIM Support
· 6 months ago Thank you for the kind words, Camila! Wonderful to hear it worked smoothly in Japan & South Korea. Come back anytime! — Anna
Lucas H.
Indonesia · Feb 2026
Super easy to set up before I flew out. Activation was automatic when I arrived. Highly recommend for any traveller.
Priya
GotoeSIM Support
· 6 months ago Thank you so much, Lucas! So happy the Japan & South Korea eSIM kept you connected. – Priya 💜
Haruto P.
Mexico · Feb 2026
Great value compared to roaming charges. I kept my normal number for calls while using this for data. Five stars from me.
Emma
GotoeSIM Support
· 6 months ago So glad to hear this, Haruto! So happy the Japan & South Korea eSIM kept you connected. Wishing you many more connected adventures! – Emma, eSIM TopUp Support
Mateo K.
Mexico · Feb 2026
Exactly what I needed for travelling. Signal held up well on trains and in rural areas.
Sara
GotoeSIM Support
· 6 months ago Thank you for the kind words, Mateo! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! – Sara, eSIM TopUp Support
Linh T.
South Korea · Feb 2026
Bought it the night before my flight — smooth process. Ran hotspot to my laptop with no issues. Would definitely buy again.
Omar
GotoeSIM Support
· 6 months ago Cheers, Linh! So pleased it saved you from roaming bills. We're here whenever you travel again. – Omar, eSIM TopUp Support
Emma D.
Egypt · Feb 2026
Worked fine but took a little while to connect at first. Topping up was straightforward when I needed more.
David
GotoeSIM Support
· 6 months ago We're really sorry, Emma. That's not the experience we want for Japan & South Korea. Reach our team at esimtopup.io/support so we can help right away. — David, eSIM TopUp Support
Diego G.
Canada · Jan 2026
Bought it the night before my flight — smooth process in Japan & South Korea. Coverage was strong even outside the city. Would definitely buy again.
David
GotoeSIM Support
· 6 months ago Really appreciate this, Diego! So pleased it saved you from roaming bills. Enjoy your journeys! – David, eSIM TopUp Support
Ananya D.
Thailand · Jan 2026
Great value compared to roaming charges. Data lasted the whole trip with room to spare. Made staying connected effortless.
Omar
GotoeSIM Support
· 6 months ago Thanks for sharing, Ananya! Wonderful to hear it worked smoothly in Japan & South Korea. Come back anytime! — Omar
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?