Japan eSIM — reviews & details
Japan 3GB 15Days (IIJ) · 3 GB · 15 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Priya S.
Switzerland · May 2026
Install took me two tries but was fine after that. Customer support answered my question quickly.
Mark
GotoeSIM Support
· 3 months ago Apologies for the trouble, Priya. That's not the experience we want for Japan. Please contact us at esimtopup.io/support and we'll sort it out. – Mark 💜
Andre H.
Japan · Jan 2026
Good coverage in the city, a bit patchy in remote areas.
James
GotoeSIM Support
· 7 months ago We're really sorry, Andre. That's not the experience we want for Japan. Reach our team at esimtopup.io/support so we can help right away. – James 💜
Viktor C.
India · Feb 2025
Install took me two tries but was fine after that. Signal held up well on trains and in rural areas.
David
GotoeSIM Support
· 1 year ago So sorry to hear this, Viktor. We'd love the chance to make this right. Reach our team at esimtopup.io/support so we can help right away. — David, eSIM TopUp Support
Ravi K.
Italy · Feb 2025
Solid overall, just wish there was a bit more data for the price.
Anna
GotoeSIM Support
· 1 year ago We're really sorry, Ravi. We'd love the chance to make this right. Reach our team at esimtopup.io/support so we can help right away. — Anna, eSIM TopUp Support
Frequently asked questions
How much does the Japan eSIM cost?
The Japan 3GB 15Days (IIJ) plan costs $2.55 for 3 GB over 15 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
Budi L. · 1 week ago
Does this work on an iPhone 13?
Sri M. · 3 weeks ago
Will this keep my WhatsApp active with my home number?
Andre D. · 3 months ago
Can I use it in nearby countries too?
Min-jun G. · 4 months ago
Can I top up the same eSIM instead of buying a new one?
Ava S. · 4 months ago
Is roaming charged extra or is it all included?
Emma T. · 4 months ago
Does the validity start on purchase or on first use?
Ravi W. · 5 months ago
Can I use this for hotspot/tethering?
Sofia H. · 6 months ago
Great guide, the setup steps were really helpful.
Lucas G. · 9 months ago
Is 5G supported or just 4G?
Mei N. · 9 months ago
Which networks does this connect to?
Omar P. · 9 months ago
Do I need to install it before I travel or after I arrive?
Olivia D. · 1 year ago
How long does the QR code take to arrive after payment?