Japan eSIM — reviews & details
Japan 3GB 30Days (IIJ) · 3 GB · 30 days
117 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Ingrid D.
Portugal · May 2026
Saved me a fortune on my holiday. Coverage was strong even outside the city. A must-have for international travel.
James
GotoeSIM Support
· 3 months ago Really appreciate this, Ingrid! Delighted the speeds worked well for you. We're here whenever you travel again. — James
Andre G.
Netherlands · May 2026
Did the job without any drama. Topping up was straightforward when I needed more.
Anna
GotoeSIM Support
· 3 months ago Thanks for sharing, Andre! Love that you were online the moment you landed in Japan. Come back anytime! — Anna
Diego V.
Japan · May 2026
Used this on my trip and it worked perfectly. Topping up was straightforward when I needed more. Great experience overall.
Mark
GotoeSIM Support
· 3 months ago Really appreciate this, Diego! So happy the Japan eSIM kept you connected. Enjoy your journeys! — Mark
Kenji H.
Singapore · May 2026
Great value compared to roaming charges. Coverage was strong even outside the city. Five stars from me.
Sophie
GotoeSIM Support
· 3 months ago So glad to hear this, Kenji! Love that you were online the moment you landed in Japan. – Sophie 💜
Diego P.
Switzerland · May 2026
Great value compared to roaming charges. Speeds were solid for maps, messaging and browsing. Highly recommend for any traveller.
Diego
GotoeSIM Support
· 3 months ago Thank you for the kind words, Diego! Love that you were online the moment you landed in Japan. — Diego
Lucia W.
Portugal · May 2026
Did the job without any drama. Customer support answered my question quickly. Telling my friends about this.
Sara
GotoeSIM Support
· 3 months ago Cheers, Lucia! Love that you were online the moment you landed in Japan. Wishing you many more connected adventures! — Sara
Budi L.
Turkey · May 2026
Great value compared to roaming charges. Setup instructions in the app were clear and simple. Telling my friends about this.
Anna
GotoeSIM Support
· 3 months ago Really appreciate this, Budi! Love that you were online the moment you landed in Japan. Enjoy your journeys! — Anna
Ryan M.
Germany · May 2026
Connected the moment I landed. Streaming and video calls worked without buffering.
Tom
GotoeSIM Support
· 3 months ago So glad to hear this, Ryan! So pleased it saved you from roaming bills. We're here whenever you travel again. — Tom, GotoeSIM Support
Ravi P.
Germany · May 2026
Honestly better than buying a local SIM at the airport. Signal held up well on trains and in rural areas. Will use GotoeSIM for my next trip for sure.
David
GotoeSIM Support
· 4 months ago Thanks for sharing, Ravi! So happy the Japan eSIM kept you connected. We're here whenever you travel again. – David, GotoeSIM Support
Hana W.
Vietnam · May 2026
Connected the moment I landed in Japan. Coverage was strong even outside the city. Would definitely buy again.
Yuki
GotoeSIM Support
· 4 months ago Really appreciate this, Hana! Delighted the speeds worked well for you. – Yuki, 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
Kenji D.
Malaysia · May 2026
Saved me a fortune on my holiday. Data lasted the whole trip with room to spare. Five stars from me.
Omar
GotoeSIM Support
· 4 months ago Really appreciate this, Kenji! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! – Omar, GotoeSIM Support
Grace C.
Vietnam · May 2026
First time using an eSIM and it was painless in Japan. The QR code arrived instantly by email. Will use GotoeSIM for my next trip for sure.
Ken
GotoeSIM Support
· 4 months ago Cheers, Grace! Delighted the speeds worked well for you. Come back anytime! — Ken
Ananya K.
Switzerland · May 2026
Bought it the night before my flight — smooth process. Data lasted the whole trip with room to spare.
Omar
GotoeSIM Support
· 4 months ago Thanks a lot, Ananya! So pleased it saved you from roaming bills. Enjoy your journeys! – Omar 💜
Ava V.
Canada · May 2026
Great value compared to roaming charges. The QR code arrived instantly by email. Made staying connected effortless.
Tom
GotoeSIM Support
· 4 months ago Thanks for sharing, Ava! Love that you were online the moment you landed in Japan. Safe travels, and see you on your next trip! — Tom
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 💜