Japan eSIM — reviews & details
Japan 3GB 30Days (IIJ) · 3 GB · 30 days
117 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Marco T.
Thailand · Jun 2026
Good coverage in the city, a bit patchy in remote areas.
Sophie
GotoeSIM Support
· 2 months ago Thank you for taking the time, Marco. 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. – Sophie, GotoeSIM Support
James H.
France · Jun 2026
Decent speeds, though slower than I expected in a few spots. Ran hotspot to my laptop with no issues.
David
GotoeSIM Support
· 2 months ago Appreciate you sharing this, James. 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. – David, GotoeSIM Support
Zoe L.
Malaysia · May 2026
Solid overall, just wish there was a bit more data for the price.
Sara
GotoeSIM Support
· 4 months ago Appreciate you sharing this, Zoe. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at gotoesim.com/support. — Sara
Diego N.
Netherlands · May 2026
Install took me two tries but was fine after that. Streaming and video calls worked without buffering.
Ingrid
GotoeSIM Support
· 4 months ago Thanks for the honest feedback, Diego. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at gotoesim.com/support. — Ingrid, GotoeSIM Support
Giulia L.
Saudi Arabia · Apr 2026
Good coverage in the city, a bit patchy in remote areas. Topping up was straightforward when I needed more.
James
GotoeSIM Support
· 4 months ago Thank you for taking the time, Giulia. 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. — James, GotoeSIM Support
Frequently asked questions
How much does the Japan eSIM cost?
The Japan 3GB 30Days (IIJ) plan costs $2.88 for 3 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
Ava H. · 3 days ago
Does the validity start on purchase or on first use?
Linh S. · 5 days ago
Can I top up the same eSIM instead of buying a new one?
Diego S. · 4 months ago
Is 5G supported or just 4G?
5G is available where covered, Diego — you'll always get the best speed on offer. – Grace, GotoeSIM Support
Min-jun B. · 4 months ago
Will this keep my WhatsApp active with my home number?
Yes Min-jun, WhatsApp keeps working with your home number — the eSIM only carries data. — Sara, GotoeSIM Support
Lucia W. · 6 months ago
Which networks does this connect to?
You'll be on top local networks, Lucia — full details are on the plan page under Coverage. — Tom
Elena R. · 7 months ago
Does the validity start on purchase or on first use?
Validity usually starts when you first connect in your destination, Elena — not at purchase. — Priya, GotoeSIM Support
Ji-woo P. · 8 months ago
Do I need to install it before I travel or after I arrive?
Install on Wi-Fi before you fly, Ji-woo — it switches on when you land. – Ingrid, GotoeSIM Support
Mohammed B. · 9 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, Mohammed. — Mark
Viktor W. · 9 months ago
Great guide, the setup steps were really helpful.
So glad it helped, Viktor! We're always here if you need anything. – Omar, GotoeSIM Support
Anna P. · 10 months ago
Can I use this for hotspot/tethering?
Tethering is supported, Anna! Feel free to hotspot to your other devices. – Laura, GotoeSIM Support
Max S. · 10 months ago
Thanks, installed with no problems on my Samsung.
It works great on modern Samsung phones, Max! Add it via SIM manager and you're set. — Yuki
Budi B. · 10 months ago
Can I use it in nearby countries too?
For nearby countries, Budi, a regional plan may suit you better — happy to help you pick. — Diego, GotoeSIM Support
Priya L. · 11 months ago
Does this work on an iPhone 13?
Absolutely, Priya! Any iPhone XS or newer supports it. Scan the QR in Settings › Cellular. — David, GotoeSIM Support
Mohammed H. · 1 year ago
Can I top up the same eSIM instead of buying a new one?
Yes Mohammed, you can top up the same eSIM anytime — no need to buy a new one. – Diego 💜