Japan eSIM — reviews & details
Japan 10GB 30Days (IIJ) · 10 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Aisha T.
Canada · Aug 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.
James
GotoeSIM Support
· 1 week ago Thanks for the honest feedback, Aisha. We're constantly optimising speeds and coverage across Japan. Reach us anytime at esimtopup.io/support if we can help. – James, eSIM TopUp Support
Carlos K.
South Korea · Jun 2026
Worked fine but took a little while to connect at first.
Yuki
GotoeSIM Support
· 1 month ago Thanks for the honest feedback, Carlos. 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. — Yuki, eSIM TopUp Support
Hugo P.
Poland · May 2026
Good coverage in the city, a bit patchy in remote areas. Streaming and video calls worked without buffering.
Sara
GotoeSIM Support
· 2 months ago Thank you for taking the time, Hugo. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. — Sara
Katya C.
Switzerland · May 2026
Decent speeds, though slower than I expected in a few spots.
James
GotoeSIM Support
· 3 months ago Thank you for taking the time, Katya. We're constantly optimising speeds and coverage across Japan. Reach us anytime at esimtopup.io/support if we can help. — James, eSIM TopUp Support
Chloe W.
UAE · Apr 2026
Install took me two tries but was fine after that. Ran hotspot to my laptop with no issues.
David
GotoeSIM Support
· 4 months ago Thank you for taking the time, Chloe. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. – David, eSIM TopUp Support
Olivia L.
Saudi Arabia · Mar 2026
Solid overall, just wish there was a bit more data for the price. Activation was automatic when I arrived.
Yuki
GotoeSIM Support
· 4 months ago Appreciate you sharing this, Olivia. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. – Yuki, eSIM TopUp Support
Sri B.
Portugal · Mar 2026
Decent speeds, though slower than I expected in a few spots. Coverage was strong even outside the city.
Tom
GotoeSIM Support
· 4 months ago Thanks for the honest feedback, Sri. We're constantly optimising speeds and coverage across Japan. Reach us anytime at esimtopup.io/support if we can help. – Tom 💜
Olivia C.
Portugal · Mar 2026
Solid overall, just wish there was a bit more data for the price.
Ingrid
GotoeSIM Support
· 5 months ago Thank you for taking the time, Olivia. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at esimtopup.io/support. — Ingrid
Hana S.
Netherlands · Feb 2026
Solid overall, just wish there was a bit more data for the price.
Sara
GotoeSIM Support
· 5 months ago Thanks for the honest feedback, Hana. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. – Sara, eSIM TopUp Support
Katya T.
Brazil · Feb 2026
Good coverage in the city, a bit patchy in remote areas. Speeds were solid for maps, messaging and browsing.
Yuki
GotoeSIM Support
· 6 months ago Thanks for the honest feedback, Katya. 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. — Yuki
Isabella F.
United Kingdom · Feb 2026
Install took me two tries but was fine after that. Streaming and video calls worked without buffering.
Sara
GotoeSIM Support
· 6 months ago Thank you for taking the time, Isabella. Glad it mostly worked for you in Japan — we're always improving our coverage. Reach us anytime at esimtopup.io/support if we can help. — Sara, eSIM TopUp Support
Viktor K.
Thailand · Jan 2026
Solid overall, just wish there was a bit more data for the price. Ran hotspot to my laptop with no issues.
Sara
GotoeSIM Support
· 6 months ago Appreciate you sharing this, Viktor. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. – Sara 💜
Sophia M.
Indonesia · Jan 2026
Decent speeds, though slower than I expected in a few spots.
Diego
GotoeSIM Support
· 6 months ago Thanks for the honest feedback, Sophia. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. — Diego
Noah K.
United States · Jan 2026
Decent speeds, though slower than I expected in a few spots. Coverage was strong even outside the city.
Mark
GotoeSIM Support
· 7 months ago Thanks for the honest feedback, Noah. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. – Mark, eSIM TopUp Support
Budi P.
Malaysia · Nov 2025
Worked fine but took a little while to connect at first.
Diego
GotoeSIM Support
· 9 months ago Appreciate you sharing this, Budi. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. – Diego 💜
Frequently asked questions
How much does the Japan eSIM cost?
The Japan 10GB 30Days (IIJ) plan costs $7.05 for 10 GB over 30 days, paid once with no hidden fees.
How do I activate my Japan 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.
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.
Comments & questions
Pablo R. · 1 week ago
How do I check how much data I have left?
Isabella V. · 3 months ago
Does the validity start on purchase or on first use?
Somchai W. · 3 months ago
Do I need to install it before I travel or after I arrive?
Fatima B. · 4 months ago
Can I use it in nearby countries too?
Hana L. · 6 months ago
Great guide, the setup steps were really helpful.
Beatriz C. · 6 months ago
Will this keep my WhatsApp active with my home number?
Viktor P. · 7 months ago
How long does the QR code take to arrive after payment?
Mateo D. · 7 months ago
Can I top up the same eSIM instead of buying a new one?
Pablo G. · 7 months ago
Which networks does this connect to?
Ryan G. · 10 months ago
Is roaming charged extra or is it all included?
Nadia B. · 1 year ago
Is 5G supported or just 4G?
Sven G. · 1 year ago
Does this work on an iPhone 13?