Japan eSIM — reviews & details
Japan 3GB 15Days (IIJ) · 3 GB · 15 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Andre S.
Vietnam · Apr 2025
Solid overall, just wish there was a bit more data for the price.
Yuki
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Andre. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at esimtopup.io/support. — Yuki
Ananya F.
United Kingdom · Feb 2025
Worked fine but took a little while to connect at first. Streaming and video calls worked without buffering.
Ingrid
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Ananya. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at esimtopup.io/support. — Ingrid, eSIM TopUp Support
Zoe G.
Indonesia · Jan 2025
Decent speeds, though slower than I expected in a few spots. Speeds were solid for maps, messaging and browsing.
Mark
GotoeSIM Support
· 1 year ago Thank you for taking the time, Zoe. 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. – Mark, eSIM TopUp Support
Arjun V.
Thailand · Jan 2025
Worked fine but took a little while to connect at first.
Sophie
GotoeSIM Support
· 1 year ago Thank you for taking the time, Arjun. 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. – Sophie 💜
Zoe D.
France · Jan 2025
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.
Emma
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Zoe. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. – Emma, eSIM TopUp Support
Yuki P.
Spain · Jan 2025
Install took me two tries but was fine after that.
Ken
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Yuki. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. — Ken
Emma H.
Italy · Jan 2025
Worked fine but took a little while to connect at first. Streaming and video calls worked without buffering.
Mark
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Emma. We're constantly optimising speeds and coverage across Japan. Reach us anytime at esimtopup.io/support if we can help. — Mark
Olivia P.
Turkey · Dec 2024
Worked fine but took a little while to connect at first.
Sophie
GotoeSIM Support
· 1 year ago Thank you for taking the time, Olivia. 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
Sophia T.
Thailand · Oct 2024
Install took me two tries but was fine after that. Customer support answered my question quickly.
Sara
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Sophia. 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. — Sara
Nguyen N.
Canada · Oct 2024
Solid overall, just wish there was a bit more data for the price.
Tom
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Nguyen. 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. — Tom, eSIM TopUp Support
Anna R.
Thailand · Oct 2024
Decent speeds, though slower than I expected in a few spots.
Grace
GotoeSIM Support
· 1 year ago Thank you for taking the time, Anna. 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, eSIM TopUp Support
Giulia M.
Spain · Sep 2024
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.
David
GotoeSIM Support
· 1 year ago Thank you for taking the time, Giulia. 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. — David
Daniel C.
United States · Sep 2024
Install took me two tries but was fine after that. I kept my normal number for calls while using this for data.
David
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Daniel. We're constantly optimising speeds and coverage across Japan. Reach us anytime at esimtopup.io/support if we can help. — David
Sri F.
Germany · Sep 2024
Good coverage in the city, a bit patchy in remote areas. Streaming and video calls worked without buffering.
Ingrid
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Sri. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at esimtopup.io/support. – Ingrid, eSIM TopUp Support
Wei R.
Saudi Arabia · Sep 2024
Good coverage in the city, a bit patchy in remote areas. Topping up was straightforward when I needed more.
David
GotoeSIM Support
· 1 year 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. — David
Frequently asked questions
How much does the Japan eSIM cost?
The Japan 3GB 15Days (IIJ) plan costs $2.55 for 3 GB over 15 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
Budi L. · 1 week ago
Does this work on an iPhone 13?
Sri M. · 3 weeks ago
Will this keep my WhatsApp active with my home number?
Andre D. · 3 months ago
Can I use it in nearby countries too?
Min-jun G. · 4 months ago
Can I top up the same eSIM instead of buying a new one?
Ava S. · 4 months ago
Is roaming charged extra or is it all included?
Emma T. · 4 months ago
Does the validity start on purchase or on first use?
Ravi W. · 5 months ago
Can I use this for hotspot/tethering?
Sofia H. · 6 months ago
Great guide, the setup steps were really helpful.
Lucas G. · 9 months ago
Is 5G supported or just 4G?
Mei N. · 9 months ago
Which networks does this connect to?
Omar P. · 9 months ago
Do I need to install it before I travel or after I arrive?
Olivia D. · 1 year ago
How long does the QR code take to arrive after payment?