Japan eSIM — reviews & details
Japan 20GB 30Days (IIJ) · 20 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Beatriz W.
Japan · Jul 2026
Did the job without any drama. Data lasted the whole trip with room to spare. A must-have for international travel.
Tom
GotoeSIM Support
· 4 weeks ago Thanks a lot, Beatriz! So pleased it saved you from roaming bills. Come back anytime! — Tom, eSIM TopUp Support
Sarah M.
Philippines · Jul 2026
Honestly better than buying a local SIM at the airport. Signal held up well on trains and in rural areas. Made staying connected effortless.
Grace
GotoeSIM Support
· 4 weeks ago Thank you for the kind words, Sarah! Love that you were online the moment you landed in Japan. Come back anytime! — Grace, eSIM TopUp Support
Zoe V.
Spain · Jul 2026
No more hunting for a SIM card kiosk on arrival. Speeds were solid for maps, messaging and browsing. Five stars from me.
James
GotoeSIM Support
· 4 weeks ago Thanks for sharing, Zoe! Great to know the setup was quick and easy. — James
Grace K.
UAE · Jul 2026
First time using an eSIM and it was painless. The QR code arrived instantly by email.
Sophie
GotoeSIM Support
· 4 weeks ago Thank you for the kind words, Grace! So happy the Japan eSIM kept you connected. – Sophie, eSIM TopUp Support
Emma P.
South Korea · Jul 2026
Used this on my trip and it worked perfectly. Speeds were solid for maps, messaging and browsing. A must-have for international travel.
Mark
GotoeSIM Support
· 1 month ago Thanks for sharing, Emma! Great to know the setup was quick and easy. We're here whenever you travel again. — Mark
Anna D.
India · Jul 2026
Installed in minutes by scanning the QR code. Coverage was strong even outside the city. Highly recommend for any traveller.
James
GotoeSIM Support
· 1 month ago Cheers, Anna! Great to know the setup was quick and easy. We're here whenever you travel again. – James, eSIM TopUp Support
Nadia M.
Netherlands · Jul 2026
Used this on my trip and it worked perfectly. I kept my normal number for calls while using this for data. Made staying connected effortless.
Omar
GotoeSIM Support
· 1 month ago Really appreciate this, Nadia! Great to know the setup was quick and easy. Wishing you many more connected adventures! – Omar, eSIM TopUp Support
Max D.
Australia · Jul 2026
Used this on my trip and it worked perfectly. Topping up was straightforward when I needed more. Made staying connected effortless.
Mark
GotoeSIM Support
· 1 month ago Thanks a lot, Max! So happy the Japan eSIM kept you connected. – Mark 💜
Chloe K.
Switzerland · Jul 2026
No more hunting for a SIM card kiosk on arrival. I kept my normal number for calls while using this for data. A must-have for international travel.
Mark
GotoeSIM Support
· 1 month ago Cheers, Chloe! Delighted the speeds worked well for you. – Mark 💜
Carlos R.
Brazil · Jul 2026
Honestly better than buying a local SIM at the airport. Speeds were solid for maps, messaging and browsing.
Ken
GotoeSIM Support
· 1 month ago Thanks a lot, Carlos! So pleased it saved you from roaming bills. — Ken, eSIM TopUp Support
Katya S.
New Zealand · Jul 2026
Honestly better than buying a local SIM at the airport. Signal held up well on trains and in rural areas. Telling my friends about this.
David
GotoeSIM Support
· 1 month ago Thanks a lot, Katya! So pleased it saved you from roaming bills. — David
Katya D.
Malaysia · Jul 2026
Saved me a fortune on my holiday. Data lasted the whole trip with room to spare. Exactly as described — no surprises.
Omar
GotoeSIM Support
· 1 month ago Cheers, Katya! So happy the Japan eSIM kept you connected. — Omar, eSIM TopUp Support
Ingrid P.
India · Jun 2026
Super easy to set up before I flew out. Signal held up well on trains and in rural areas. Will use eSIM TopUp for my next trip for sure.
Omar
GotoeSIM Support
· 1 month ago Really appreciate this, Ingrid! So pleased it saved you from roaming bills. — Omar, eSIM TopUp Support
Budi B.
Poland · Jun 2026
Honestly better than buying a local SIM at the airport. Data lasted the whole trip with room to spare.
David
GotoeSIM Support
· 1 month ago Thanks for sharing, Budi! So pleased it saved you from roaming bills. – David, eSIM TopUp Support
Ryan D.
South Korea · Jun 2026
Connected the moment I landed in Japan. Ran hotspot to my laptop with no issues. Great experience overall.
Mark
GotoeSIM Support
· 1 month ago Thanks for sharing, Ryan! Love that you were online the moment you landed in Japan. We're here whenever you travel again. — Mark
Frequently asked questions
How much does the Japan eSIM cost?
The Japan 20GB 30Days (IIJ) plan costs $12.30 for 20 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 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
Katya K. · 2 months ago
Is 5G supported or just 4G?
Katya V. · 7 months ago
Thanks, installed with no problems on my Samsung.
Beatriz C. · 8 months ago
Is roaming charged extra or is it all included?
Lea B. · 8 months ago
Will this keep my WhatsApp active with my home number?
Kenji R. · 9 months ago
Do I need to install it before I travel or after I arrive?
Zoe V. · 9 months ago
How do I check how much data I have left?
Grace C. · 10 months ago
Great guide, the setup steps were really helpful.
Camila M. · 11 months ago
Can I use it in nearby countries too?
Mateo B. · 11 months ago
Which networks does this connect to?
Beatriz R. · 11 months ago
Does the validity start on purchase or on first use?
Sarah V. · 11 months ago
How long does the QR code take to arrive after payment?
Thomas N. · 1 year ago
Can I top up the same eSIM instead of buying a new one?