Japan eSIM — reviews & details
Japan 20GB 30Days · 20 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 5G Rakuten Mobile 5G KDDI/au 5G SoftBank 5G
Traveller reviews
Somchai N.
Australia · Aug 2026
Install took me two tries but was fine after that.
James
GotoeSIM Support
· 6 days ago Appreciate you sharing this, Somchai. 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. — James, eSIM TopUp Support
Aisha W.
United Kingdom · Aug 2026
Solid overall, just wish there was a bit more data for the price. Ran hotspot to my laptop with no issues.
Yuki
GotoeSIM Support
· 1 week ago Thanks for the honest feedback, Aisha. 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
Hana D.
Australia · Jul 2026
Good coverage in the city, a bit patchy in remote areas.
Omar
GotoeSIM Support
· 4 weeks ago Thank you for taking the time, Hana. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. — Omar, eSIM TopUp Support
Diego W.
Spain · Jul 2026
Decent speeds, though slower than I expected in a few spots. Setup instructions in the app were clear and simple.
Ken
GotoeSIM Support
· 4 weeks ago Thanks for the honest feedback, Diego. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. – Ken, eSIM TopUp Support
Kenji K.
South Korea · Jul 2026
Solid overall, just wish there was a bit more data for the price. Streaming and video calls worked without buffering.
Sophie
GotoeSIM Support
· 1 month ago Thanks for the honest feedback, Kenji. 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. – Sophie 💜
Lea G.
Thailand · Jul 2026
Worked fine but took a little while to connect at first. Coverage was strong even outside the city.
Ingrid
GotoeSIM Support
· 1 month ago Thanks for the honest feedback, Lea. 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. – Ingrid, eSIM TopUp Support
Anna P.
Japan · Jun 2026
Install took me two tries but was fine after that.
Sara
GotoeSIM Support
· 1 month ago Thank you for taking the time, Anna. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. — Sara
Budi V.
Italy · Jun 2026
Decent speeds, though slower than I expected in a few spots. Streaming and video calls worked without buffering.
Ingrid
GotoeSIM Support
· 1 month ago Thanks for the honest feedback, Budi. 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. — Ingrid, eSIM TopUp Support
James P.
Italy · Jun 2026
Install took me two tries but was fine after that.
Tom
GotoeSIM Support
· 2 months ago Thank you for taking the time, James. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at esimtopup.io/support. — Tom, eSIM TopUp Support
Ethan R.
India · Jun 2026
Good coverage in the city, a bit patchy in remote areas. Topping up was straightforward when I needed more.
Sophie
GotoeSIM Support
· 2 months ago Appreciate you sharing this, Ethan. 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. – Sophie, eSIM TopUp Support
Lucia T.
Brazil · May 2026
Good coverage in the city, a bit patchy in remote areas. Topping up was straightforward when I needed more.
Omar
GotoeSIM Support
· 2 months ago Thank you for taking the time, Lucia. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at esimtopup.io/support. — Omar
Min-jun K.
Vietnam · May 2026
Decent speeds, though slower than I expected in a few spots.
Omar
GotoeSIM Support
· 2 months ago Thanks for the honest feedback, Min-jun. 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. — Omar
Viktor F.
Italy · May 2026
Worked fine but took a little while to connect at first.
Grace
GotoeSIM Support
· 3 months ago Thanks for the honest feedback, Viktor. 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. — Grace
Wei F.
France · May 2026
Decent speeds, though slower than I expected in a few spots. Data lasted the whole trip with room to spare.
Diego
GotoeSIM Support
· 3 months ago Thanks for the honest feedback, Wei. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. – Diego 💜
Elena N.
India · Apr 2026
Good coverage in the city, a bit patchy in remote areas.
Mark
GotoeSIM Support
· 3 months ago Thank you for taking the time, Elena. 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. — Mark
Frequently asked questions
How much does the Japan eSIM cost?
The Japan 20GB 30Days plan costs $12.30 for 20 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
Arjun V. · 4 days ago
Is 5G supported or just 4G?
Beatriz R. · 3 weeks ago
Great guide, the setup steps were really helpful.
Noah F. · 2 months ago
Will this keep my WhatsApp active with my home number?
Lucia B. · 3 months ago
Which networks does this connect to?
Katya K. · 3 months ago
Is roaming charged extra or is it all included?
Ethan L. · 5 months ago
Do I need to install it before I travel or after I arrive?
Ava G. · 5 months ago
Does this work on an iPhone 13?
Hugo B. · 6 months ago
Thanks, installed with no problems on my Samsung.
Wei L. · 9 months ago
Can I use this for hotspot/tethering?
Emma V. · 10 months ago
Does the validity start on purchase or on first use?
Liam P. · 1 year ago
Can I use it in nearby countries too?
Louis H. · 1 year ago
Can I top up the same eSIM instead of buying a new one?