Japan eSIM — reviews & details
Japan 20GB 30Days (IIJ) · 20 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Sarah N.
Thailand · Jul 2025
Exactly what I needed for travelling. Speeds were solid for maps, messaging and browsing. Telling my friends about this.
Grace
GotoeSIM Support
· 1 year ago So glad to hear this, Sarah! Love that you were online the moment you landed in Japan. Safe travels, and see you on your next trip! – Grace, eSIM TopUp Support
Liam K.
Ireland · Jul 2025
Connected the moment I landed in Japan. Customer support answered my question quickly. Would definitely buy again.
Omar
GotoeSIM Support
· 1 year ago Really appreciate this, Liam! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! — Omar, eSIM TopUp Support
Sri K.
Brazil · Jul 2025
Used this on my trip and it worked perfectly. Ran hotspot to my laptop with no issues.
Tom
GotoeSIM Support
· 1 year ago Cheers, Sri! So pleased it saved you from roaming bills. – Tom 💜
Somchai S.
Germany · Jul 2025
Bought it the night before my flight — smooth process. Streaming and video calls worked without buffering. Zero regrets.
Yuki
GotoeSIM Support
· 1 year ago Cheers, Somchai! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! — Yuki
Carlos H.
Singapore · Jul 2025
Bought it the night before my flight — smooth process. Coverage was strong even outside the city. Telling my friends about this.
Ken
GotoeSIM Support
· 1 year ago Thank you for the kind words, Carlos! Delighted the speeds worked well for you. Wishing you many more connected adventures! – Ken, eSIM TopUp Support
Sarah P.
Vietnam · Jul 2025
First time using an eSIM and it was painless. Speeds were solid for maps, messaging and browsing. Made staying connected effortless.
Priya
GotoeSIM Support
· 1 year ago Really appreciate this, Sarah! Great to know the setup was quick and easy. Enjoy your journeys! – Priya 💜
Beatriz B.
Spain · Jul 2025
Did the job without any drama. Activation was automatic when I arrived in Japan. Great experience overall.
James
GotoeSIM Support
· 1 year ago Really appreciate this, Beatriz! Thrilled it made staying connected effortless. Enjoy your journeys! – James, eSIM TopUp Support
Nadia T.
Sweden · Jul 2025
Exactly what I needed for travelling in Japan. Topping up was straightforward when I needed more. Five stars from me.
Laura
GotoeSIM Support
· 1 year ago Thanks a lot, Nadia! Thrilled it made staying connected effortless. – Laura, eSIM TopUp Support
Ananya N.
Turkey · Jul 2025
Honestly better than buying a local SIM at the airport. Ran hotspot to my laptop with no issues. Zero regrets.
Grace
GotoeSIM Support
· 1 year ago Really appreciate this, Ananya! Love that you were online the moment you landed in Japan. Wishing you many more connected adventures! – Grace, eSIM TopUp Support
Sofia H.
Netherlands · Jul 2025
Honestly better than buying a local SIM at the airport in Japan. Speeds were solid for maps, messaging and browsing. Highly recommend for any traveller.
Laura
GotoeSIM Support
· 1 year ago Cheers, Sofia! So pleased it saved you from roaming bills. – Laura, eSIM TopUp Support
Min-jun V.
Poland · Jul 2025
No more hunting for a SIM card kiosk on arrival. Ran hotspot to my laptop with no issues. Telling my friends about this.
Tom
GotoeSIM Support
· 1 year ago Thanks a lot, Min-jun! Love that you were online the moment you landed in Japan. Safe travels, and see you on your next trip! – Tom 💜
Ananya K.
New Zealand · Jul 2025
Installed in minutes by scanning the QR code in Japan. Streaming and video calls worked without buffering.
Grace
GotoeSIM Support
· 1 year ago Thank you so much, Ananya! So pleased it saved you from roaming bills. – Grace 💜
Hana N.
Egypt · Jul 2025
Used this on my trip and it worked perfectly. Ran hotspot to my laptop with no issues. Made staying connected effortless.
Emma
GotoeSIM Support
· 1 year ago So glad to hear this, Hana! Wonderful to hear it worked smoothly in Japan. Wishing you many more connected adventures! – Emma 💜
Lea M.
United Kingdom · Jul 2025
Installed in minutes by scanning the QR code. The QR code arrived instantly by email. Exactly as described — no surprises.
Diego
GotoeSIM Support
· 1 year ago Thank you for the kind words, Lea! Delighted the speeds worked well for you. – Diego, eSIM TopUp Support
Mateo P.
Germany · Jul 2025
Used this on my trip and it worked perfectly in Japan. Setup instructions in the app were clear and simple.
Ingrid
GotoeSIM Support
· 1 year ago Really appreciate this, Mateo! Great to know the setup was quick and easy. Come back anytime! — Ingrid
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?