Japan eSIM — reviews & details
Japan 3GB 30Days (IIJ) · 3 GB · 30 days
117 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Mateo B.
United States · Apr 2026
Great value compared to roaming charges. Coverage was strong even outside the city. Five stars from me.
Grace
GotoeSIM Support
· 4 months ago Thanks for sharing, Mateo! Delighted the speeds worked well for you. — Grace
Fatima G.
Malaysia · Apr 2026
Saved me a fortune on my holiday. Coverage was strong even outside the city. Five stars from me.
Sara
GotoeSIM Support
· 4 months ago Thanks for sharing, Fatima! Wonderful to hear it worked smoothly in Japan. Enjoy your journeys! – Sara, GotoeSIM Support
Ji-woo D.
Turkey · Apr 2026
Used this on my trip and it worked perfectly. Setup instructions in the app were clear and simple. Would definitely buy again.
James
GotoeSIM Support
· 4 months ago So glad to hear this, Ji-woo! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! — James
Sofia H.
Poland · Apr 2026
Used this on my trip and it worked perfectly. Speeds were solid for maps, messaging and browsing. Highly recommend for any traveller.
James
GotoeSIM Support
· 4 months ago So glad to hear this, Sofia! So pleased it saved you from roaming bills. Wishing you many more connected adventures! — James
Nadia V.
South Korea · Apr 2026
Honestly better than buying a local SIM at the airport. Speeds were solid for maps, messaging and browsing. Telling my friends about this.
Ken
GotoeSIM Support
· 4 months ago Thank you so much, Nadia! Great to know the setup was quick and easy. – Ken, GotoeSIM Support
Noah G.
Saudi Arabia · Apr 2026
Used this on my trip and it worked perfectly. Signal held up well on trains and in rural areas.
Tom
GotoeSIM Support
· 4 months ago Thank you so much, Noah! Wonderful to hear it worked smoothly in Japan. — Tom
Haruto M.
Saudi Arabia · Apr 2026
Exactly what I needed for travelling. Coverage was strong even outside the city.
Omar
GotoeSIM Support
· 4 months ago Thank you for the kind words, Haruto! Wonderful to hear it worked smoothly in Japan. Come back anytime! — Omar, GotoeSIM Support
Diego W.
South Korea · Apr 2026
Used this on my trip and it worked perfectly. Topping up was straightforward when I needed more.
Tom
GotoeSIM Support
· 5 months ago Thank you for the kind words, Diego! Wonderful to hear it worked smoothly in Japan. – Tom, GotoeSIM Support
Zoe G.
Portugal · Apr 2026
First time using an eSIM and it was painless. Speeds were solid for maps, messaging and browsing. Zero regrets.
Priya
GotoeSIM Support
· 5 months ago Thank you so much, Zoe! Delighted the speeds worked well for you. Wishing you many more connected adventures! – Priya 💜
Mei L.
Germany · Apr 2026
Bought it the night before my flight — smooth process. I kept my normal number for calls while using this for data. Made staying connected effortless.
Priya
GotoeSIM Support
· 5 months ago Thank you so much, Mei! Wonderful to hear it worked smoothly in Japan. We're here whenever you travel again. – Priya, GotoeSIM Support
Olivia W.
Germany · Apr 2026
Great value compared to roaming charges. Streaming and video calls worked without buffering. Exactly as described — no surprises.
Ingrid
GotoeSIM Support
· 5 months ago Cheers, Olivia! So happy the Japan eSIM kept you connected. Come back anytime! — Ingrid
Daniel C.
Australia · Apr 2026
Did the job without any drama. Signal held up well on trains and in rural areas. Made staying connected effortless.
Ken
GotoeSIM Support
· 5 months ago Thank you for the kind words, Daniel! Thrilled it made staying connected effortless. Wishing you many more connected adventures! — Ken
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 💜