Japan eSIM — reviews & details
Japan 3GB 15Days (IIJ) · 3 GB · 15 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Viktor H.
New Zealand · Jul 2026
Worked fine but took a little while to connect at first. Data lasted the whole trip with room to spare.
Priya
GotoeSIM Support
· 2 weeks 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. – Priya 💜
Priya V.
Philippines · Jul 2026
Solid overall, just wish there was a bit more data for the price. Streaming and video calls worked without buffering.
Omar
GotoeSIM Support
· 1 month ago Thanks for the honest feedback, Priya. We're constantly optimising speeds and coverage across Japan. Reach us anytime at esimtopup.io/support if we can help. – Omar, eSIM TopUp Support
Mohammed F.
Netherlands · Jun 2026
Good coverage in the city, a bit patchy in remote areas.
Sophie
GotoeSIM Support
· 2 months ago Appreciate you sharing this, Mohammed. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at esimtopup.io/support. – Sophie, eSIM TopUp Support
Sri B.
Germany · Jun 2026
Worked fine but took a little while to connect at first.
Anna
GotoeSIM Support
· 2 months ago Thanks for the honest feedback, Sri. 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. – Anna 💜
Sarah R.
Mexico · May 2026
Worked fine but took a little while to connect at first.
Sara
GotoeSIM Support
· 2 months ago Thanks for the honest feedback, Sarah. 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, eSIM TopUp Support
Louis B.
Mexico · Apr 2026
Worked fine but took a little while to connect at first. Data lasted the whole trip with room to spare.
David
GotoeSIM Support
· 4 months ago Thanks for the honest feedback, Louis. We're constantly optimising speeds and coverage across Japan. Reach us anytime at esimtopup.io/support if we can help. — David, eSIM TopUp Support
Grace C.
Ireland · Mar 2026
Decent speeds, though slower than I expected in a few spots. Speeds were solid for maps, messaging and browsing.
Omar
GotoeSIM Support
· 4 months ago Appreciate you sharing this, Grace. We're constantly optimising speeds and coverage across Japan. Reach us anytime at esimtopup.io/support if we can help. — Omar, eSIM TopUp Support
Viktor P.
France · Mar 2026
Solid overall, just wish there was a bit more data for the price. Speeds were solid for maps, messaging and browsing.
Omar
GotoeSIM Support
· 5 months ago Appreciate you sharing this, Viktor. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at esimtopup.io/support. – Omar 💜
Giulia W.
Portugal · Feb 2026
Worked fine but took a little while to connect at first.
Mark
GotoeSIM Support
· 6 months ago Thank you for taking the time, Giulia. We're constantly optimising speeds and coverage across Japan. Reach us anytime at esimtopup.io/support if we can help. — Mark
Ethan K.
Germany · Feb 2026
Install took me two tries but was fine after that.
Yuki
GotoeSIM Support
· 6 months ago Thanks for the honest feedback, Ethan. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at esimtopup.io/support. – Yuki 💜
Mei H.
Switzerland · Feb 2026
Solid overall, just wish there was a bit more data for the price. Activation was automatic when I arrived.
Diego
GotoeSIM Support
· 6 months ago Appreciate you sharing this, Mei. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at esimtopup.io/support. – Diego, eSIM TopUp Support
Ingrid P.
Indonesia · Dec 2025
Install took me two tries but was fine after that.
Yuki
GotoeSIM Support
· 7 months ago Thanks for the honest feedback, Ingrid. 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
Nadia V.
New Zealand · Dec 2025
Decent speeds, though slower than I expected in a few spots. The QR code arrived instantly by email.
Ingrid
GotoeSIM Support
· 7 months ago Appreciate you sharing this, Nadia. 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
Omar R.
Japan · Dec 2025
Solid overall, just wish there was a bit more data for the price. Data lasted the whole trip with room to spare.
Emma
GotoeSIM Support
· 8 months ago Thanks for the honest feedback, Omar. 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. — Emma, eSIM TopUp Support
Viktor B.
Canada · Dec 2025
Good coverage in the city, a bit patchy in remote areas.
Diego
GotoeSIM Support
· 8 months ago Thanks for the honest feedback, Viktor. 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 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?