Japan & South Korea eSIM — reviews & details
Japan & South Korea 5GB 30Days · 5 GB · 30 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea SKTelecom 5G LG Uplus 5G
Traveller reviews
Louis R.
Indonesia · Sep 2024
Honestly better than buying a local SIM at the airport. Signal held up well on trains and in rural areas. Will use eSIM TopUp for my next trip for sure.
Diego
eSIM TopUp Support
· 1 year ago Thanks a lot, Louis! So pleased it saved you from roaming bills. We're here whenever you travel again. – Diego 💜
Zoe N.
Poland · Sep 2024
Great value compared to roaming charges. Streaming and video calls worked without buffering. Highly recommend for any traveller.
Mark
eSIM TopUp Support
· 1 year ago Thank you for the kind words, Zoe! So pleased it saved you from roaming bills. Wishing you many more connected adventures! – Mark 💜
Priya F.
Ireland · Sep 2024
Bought it the night before my flight — smooth process. The QR code arrived instantly by email.
Priya
eSIM TopUp Support
· 1 year ago So glad to hear this, Priya! Wonderful to hear it worked smoothly in Japan & South Korea. — Priya, eSIM TopUp Support
Wei G.
Spain · Sep 2024
Bought it the night before my flight — smooth process. Activation was automatic when I arrived in Japan & South Korea. Made staying connected effortless.
Mark
eSIM TopUp Support
· 1 year ago Thanks for sharing, Wei! Great to know the setup was quick and easy. Enjoy your journeys! – Mark, eSIM TopUp Support
Omar R.
Malaysia · Sep 2024
No more hunting for a SIM card kiosk on arrival. Signal held up well on trains and in rural areas. Made staying connected effortless.
Mark
eSIM TopUp Support
· 1 year ago Thanks for sharing, Omar! Wonderful to hear it worked smoothly in Japan & South Korea. Wishing you many more connected adventures! — Mark
Priya B.
Germany · Sep 2024
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. Highly recommend for any traveller.
Mark
eSIM TopUp Support
· 1 year ago Thanks for sharing, Priya! Delighted the speeds worked well for you. Come back anytime! — Mark
Daniel B.
Sweden · Sep 2024
Great value compared to roaming charges. Customer support answered my question quickly. Zero regrets.
Priya
eSIM TopUp Support
· 1 year ago Really appreciate this, Daniel! Delighted the speeds worked well for you. We're here whenever you travel again. – Priya 💜
Emma G.
Germany · Sep 2024
Saved me a fortune on my holiday. I kept my normal number for calls while using this for data. Exactly as described — no surprises.
Mark
eSIM TopUp Support
· 1 year ago Thanks for sharing, Emma! Wonderful to hear it worked smoothly in Japan & South Korea. We're here whenever you travel again. — Mark
Marco L.
Switzerland · Sep 2024
Connected the moment I landed. Streaming and video calls worked without buffering. Telling my friends about this.
Grace
eSIM TopUp Support
· 1 year ago Thanks for sharing, Marco! Thrilled it made staying connected effortless. Wishing you many more connected adventures! — Grace, eSIM TopUp Support
Mei W.
Italy · Sep 2024
Great value compared to roaming charges. Streaming and video calls worked without buffering. Great experience overall.
Diego
eSIM TopUp Support
· 1 year ago Thank you for the kind words, Mei! Delighted the speeds worked well for you. — Diego
Budi N.
South Korea · Sep 2024
Honestly better than buying a local SIM at the airport. Activation was automatic when I arrived. Would definitely buy again.
Diego
eSIM TopUp Support
· 1 year ago Thank you so much, Budi! So pleased it saved you from roaming bills. We're here whenever you travel again. – Diego 💜
Mateo D.
Ireland · Sep 2024
No more hunting for a SIM card kiosk on arrival. Signal held up well on trains and in rural areas.
Ken
eSIM TopUp Support
· 1 year ago Really appreciate this, Mateo! Thrilled it made staying connected effortless. Enjoy your journeys! – Ken 💜
Sven V.
Vietnam · Sep 2024
Decent speeds, though slower than I expected in a few spots.
Sophie
eSIM TopUp Support
· 1 year ago Thank you for taking the time, Sven. We're constantly optimising speeds and coverage across Japan & South Korea. Reach us anytime at esimtopup.io/support if we can help. — Sophie, eSIM TopUp Support
Sri M.
New Zealand · Sep 2024
Super easy to set up before I flew out. Topping up was straightforward when I needed more. Made staying connected effortless.
Tom
eSIM TopUp Support
· 1 year ago Thanks for sharing, Sri! Wonderful to hear it worked smoothly in Japan & South Korea. We're here whenever you travel again. – Tom 💜
Sri H.
Vietnam · Sep 2024
Bought it the night before my flight — smooth process in Japan & South Korea. Setup instructions in the app were clear and simple.
Emma
eSIM TopUp Support
· 1 year ago Thank you for the kind words, Sri! So happy the Japan & South Korea eSIM kept you connected. Wishing you many more connected adventures! – Emma 💜
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 5GB 30Days plan costs $9.75 for 5 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
Emma M. · 2 months ago
Can I use this for hotspot/tethering?
Andre H. · 2 months ago
Is 5G supported or just 4G?
Elena H. · 3 months ago
Thanks, installed with no problems on my Samsung.
Arjun N. · 4 months ago
How do I check how much data I have left?
Lucia L. · 4 months ago
Will this keep my WhatsApp active with my home number?
Mohammed P. · 6 months ago
Which networks does this connect to?
Katya C. · 7 months ago
Can I use it in nearby countries too?
Liam G. · 7 months ago
Can I top up the same eSIM instead of buying a new one?
Emma C. · 7 months ago
Great guide, the setup steps were really helpful.
Katya K. · 9 months ago
How long does the QR code take to arrive after payment?
Lea N. · 1 year ago
Does the validity start on purchase or on first use?
Marco N. · 1 year ago
Do I need to install it before I travel or after I arrive?