Japan eSIM — reviews & details
Japan 5GB 30Days (IIJ) · 5 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Elena M.
New Zealand · Jul 2026
Decent speeds, though slower than I expected in a few spots.
David
GotoeSIM Support
· 3 weeks ago Appreciate you sharing this, Elena. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. — David
Sofia M.
Sweden · Jul 2026
Good coverage in the city, a bit patchy in remote areas. Signal held up well on trains and in rural areas.
Diego
GotoeSIM Support
· 1 month ago Appreciate you sharing this, Sofia. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at esimtopup.io/support. – Diego, eSIM TopUp Support
Lea C.
Japan · Jun 2026
Decent speeds, though slower than I expected in a few spots.
Grace
GotoeSIM Support
· 1 month ago Thank you for taking the time, Lea. Glad it mostly worked for you in Japan — we're always improving our coverage. Reach us anytime at esimtopup.io/support if we can help. — Grace, eSIM TopUp Support
Mohammed N.
United Kingdom · Jun 2026
Decent speeds, though slower than I expected in a few spots. Setup instructions in the app were clear and simple.
Sophie
GotoeSIM Support
· 1 month ago Appreciate you sharing this, Mohammed. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at esimtopup.io/support. – Sophie 💜
Linh R.
Japan · Jun 2026
Decent speeds, though slower than I expected in a few spots. Activation was automatic when I arrived.
Diego
GotoeSIM Support
· 1 month ago Thank you for taking the time, Linh. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. — Diego, eSIM TopUp Support
Katya D.
Vietnam · May 2026
Decent speeds, though slower than I expected in a few spots. Activation was automatic when I arrived.
Priya
GotoeSIM Support
· 2 months ago Thank you for taking the time, Katya. Glad it mostly worked for you in Japan — we're always improving our coverage. Reach us anytime at esimtopup.io/support if we can help. — Priya, eSIM TopUp Support
Lucas F.
Canada · May 2026
Worked fine but took a little while to connect at first.
Omar
GotoeSIM Support
· 3 months ago Thanks for the honest feedback, Lucas. We're constantly optimising speeds and coverage across Japan. Reach us anytime at esimtopup.io/support if we can help. – Omar 💜
Daniel T.
India · May 2026
Worked fine but took a little while to connect at first. Data lasted the whole trip with room to spare.
Omar
GotoeSIM Support
· 3 months ago Thanks for the honest feedback, Daniel. Good to hear it did the job, and we're working to make it even better. Reach us anytime at esimtopup.io/support if we can help. – Omar 💜
James K.
Italy · Apr 2026
Worked fine but took a little while to connect at first.
Emma
GotoeSIM Support
· 3 months ago Thank you for taking the time, James. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. – Emma, eSIM TopUp Support
Sven N.
Singapore · Apr 2026
Solid overall, just wish there was a bit more data for the price.
Grace
GotoeSIM Support
· 4 months ago Appreciate you sharing this, Sven. Good to hear it did the job, and we're working to make it even better. Reach us anytime at esimtopup.io/support if we can help. — Grace, eSIM TopUp Support
Camila N.
Philippines · Apr 2026
Install took me two tries but was fine after that. Topping up was straightforward when I needed more.
Grace
GotoeSIM Support
· 4 months ago Appreciate you sharing this, Camila. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at esimtopup.io/support. — Grace, eSIM TopUp Support
Zoe W.
Netherlands · Feb 2026
Solid overall, just wish there was a bit more data for the price.
Laura
GotoeSIM Support
· 5 months ago Thanks for the honest feedback, Zoe. Good to hear it did the job, and we're working to make it even better. Reach us anytime at esimtopup.io/support if we can help. — Laura, eSIM TopUp Support
Aisha N.
Indonesia · Feb 2026
Good coverage in the city, a bit patchy in remote areas. Streaming and video calls worked without buffering.
Sophie
GotoeSIM Support
· 6 months ago Appreciate you sharing this, Aisha. Glad it mostly worked for you in Japan — we're always improving our coverage. Reach us anytime at esimtopup.io/support if we can help. – Sophie 💜
Sri G.
New Zealand · Jan 2026
Install took me two tries but was fine after that. Speeds were solid for maps, messaging and browsing.
Anna
GotoeSIM Support
· 7 months ago Appreciate you sharing this, Sri. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. — Anna
Elena V.
South Korea · Dec 2025
Worked fine but took a little while to connect at first. Data lasted the whole trip with room to spare.
Sophie
GotoeSIM Support
· 7 months ago Appreciate you sharing this, Elena. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. – Sophie, eSIM TopUp Support
Frequently asked questions
How much does the Japan eSIM cost?
The Japan 5GB 30Days (IIJ) plan costs $4.05 for 5 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
Sofia K. · 2 weeks ago
Do I need to install it before I travel or after I arrive?
Ravi V. · 1 month ago
Is roaming charged extra or is it all included?
Daniel C. · 3 months ago
How do I check how much data I have left?
James N. · 3 months ago
Does this work on an iPhone 13?
Nadia K. · 3 months ago
Can I top up the same eSIM instead of buying a new one?
Min-jun P. · 3 months ago
Does the validity start on purchase or on first use?
Aisha R. · 3 months ago
Can I use this for hotspot/tethering?
Nadia D. · 4 months ago
Thanks, installed with no problems on my Samsung.
Sri T. · 5 months ago
Is 5G supported or just 4G?
Diego V. · 5 months ago
Can I use it in nearby countries too?
Liam G. · 5 months ago
Great guide, the setup steps were really helpful.
Ava F. · 10 months ago
How long does the QR code take to arrive after payment?