Japan eSIM — reviews & details
Japan 5GB 30Days (IIJ) · 5 GB · 30 days
165 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Mei W.
Australia · Jul 2026
Solid overall, just wish there was a bit more data for the price.
Tom
GotoeSIM Support
· 1 month ago Thanks for the honest feedback, Mei. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at gotoesim.com/support. – Tom, GotoeSIM Support
Wei B.
Egypt · Jul 2026
Decent speeds, though slower than I expected in a few spots.
Emma
GotoeSIM Support
· 1 month ago Thanks for the honest feedback, Wei. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at gotoesim.com/support. – Emma 💜
Sven P.
South Korea · Jul 2026
Worked fine but took a little while to connect at first. Speeds were solid for maps, messaging and browsing.
James
GotoeSIM Support
· 2 months ago Thanks for the honest feedback, Sven. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at gotoesim.com/support. — James, GotoeSIM Support
Yuki G.
Sweden · Jul 2026
Good coverage in the city, a bit patchy in remote areas. Speeds were solid for maps, messaging and browsing.
Ken
GotoeSIM Support
· 2 months ago Thank you for taking the time, Yuki. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at gotoesim.com/support. — Ken, GotoeSIM Support
Beatriz P.
India · Jun 2026
Good coverage in the city, a bit patchy in remote areas. Activation was automatic when I arrived.
James
GotoeSIM Support
· 2 months ago Thank you for taking the time, Beatriz. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at gotoesim.com/support. – James 💜
Haruto C.
Germany · May 2026
Worked fine but took a little while to connect at first. Coverage was strong even outside the city.
James
GotoeSIM Support
· 3 months ago Thank you for taking the time, Haruto. Glad it mostly worked for you in Japan — we're always improving our coverage. Reach us anytime at gotoesim.com/support if we can help. — James
Mohammed V.
Indonesia · May 2026
Install took me two tries but was fine after that.
Sara
GotoeSIM Support
· 3 months ago Appreciate you sharing this, Mohammed. Good to hear it did the job, and we're working to make it even better. Reach us anytime at gotoesim.com/support if we can help. — Sara, GotoeSIM Support
Sri K.
Switzerland · May 2026
Install took me two tries but was fine after that. Ran hotspot to my laptop with no issues.
James
GotoeSIM Support
· 3 months ago Thanks for the honest feedback, Sri. Glad it mostly worked for you in Japan — we're always improving our coverage. Reach us anytime at gotoesim.com/support if we can help. — James
Ananya V.
Japan · Apr 2026
Install took me two tries but was fine after that. Speeds were solid for maps, messaging and browsing.
Yuki
GotoeSIM Support
· 4 months ago Thank you for taking the time, Ananya. We're constantly optimising speeds and coverage across Japan. Reach us anytime at gotoesim.com/support if we can help. – Yuki 💜
Linh F.
Italy · Apr 2026
Solid overall, just wish there was a bit more data for the price.
Diego
GotoeSIM Support
· 5 months ago Appreciate you sharing this, Linh. Good to hear it did the job, and we're working to make it even better. Reach us anytime at gotoesim.com/support if we can help. – Diego, GotoeSIM Support
Sri S.
Thailand · Mar 2026
Solid overall, just wish there was a bit more data for the price. The QR code arrived instantly by email.
David
GotoeSIM Support
· 5 months ago Thanks for the honest feedback, Sri. We're constantly optimising speeds and coverage across Japan. Reach us anytime at gotoesim.com/support if we can help. — David, GotoeSIM Support
Fatima R.
Indonesia · Mar 2026
Solid overall, just wish there was a bit more data for the price. Coverage was strong even outside the city.
Sara
GotoeSIM Support
· 6 months ago Thanks for the honest feedback, Fatima. We're constantly optimising speeds and coverage across Japan. Reach us anytime at gotoesim.com/support if we can help. — Sara
Max R.
France · Feb 2026
Worked fine but took a little while to connect at first. I kept my normal number for calls while using this for data.
Emma
GotoeSIM Support
· 7 months ago Appreciate you sharing this, Max. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at gotoesim.com/support. — Emma
Linh H.
Australia · Jan 2026
Solid overall, just wish there was a bit more data for the price. Coverage was strong even outside the city.
Laura
GotoeSIM Support
· 7 months ago Appreciate you sharing this, Linh. Glad it mostly worked for you in Japan — we're always improving our coverage. Reach us anytime at gotoesim.com/support if we can help. – Laura, GotoeSIM Support
Frequently asked questions
How much does the Japan eSIM cost?
The Japan 5GB 30Days (IIJ) plan costs $4.32 for 5 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 GotoeSIM 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
Carlos H. · 2 months ago
How do I check how much data I have left?
You can check remaining data anytime in the GotoeSIM app under My eSIMs, Carlos. — Tom
Liam V. · 3 months ago
Which networks does this connect to?
You'll be on top local networks, Liam — full details are on the plan page under Coverage. — Grace
Liam D. · 3 months ago
Is roaming charged extra or is it all included?
Roaming is included in the plan, Liam — no extra charges, it's all prepaid. — Ken, GotoeSIM Support
Lea K. · 4 months ago
How long does the QR code take to arrive after payment?
Your QR code arrives instantly, Lea — within seconds of payment, by email and in your account. — Mark
Arjun T. · 4 months ago
Do I need to install it before I travel or after I arrive?
Install on Wi-Fi before you fly, Arjun — it switches on when you land. — Omar
James T. · 5 months ago
Is 5G supported or just 4G?
5G is available where covered, James — you'll always get the best speed on offer. — Yuki, GotoeSIM Support
Katya M. · 5 months ago
Does the validity start on purchase or on first use?
Validity usually starts when you first connect in your destination, Katya — not at purchase. – Priya, GotoeSIM Support
Budi T. · 6 months ago
Can I top up the same eSIM instead of buying a new one?
Yes Budi, you can top up the same eSIM anytime — no need to buy a new one. – Mark, GotoeSIM Support
Grace S. · 8 months ago
Great guide, the setup steps were really helpful.
So glad it helped, Grace! We're always here if you need anything. — Diego
Mei V. · 1 year ago
Thanks, installed with no problems on my Samsung.
It works great on modern Samsung phones, Mei! Add it via SIM manager and you're set. – Sara, GotoeSIM Support
Chloe M. · 1 year ago
Can I use it in nearby countries too?
For nearby countries, Chloe, a regional plan may suit you better — happy to help you pick. – James 💜
Grace D. · 1 year ago
Can I use this for hotspot/tethering?
Tethering is supported, Grace! Feel free to hotspot to your other devices. – David, GotoeSIM Support