Japan eSIM — reviews & details
Japan 3GB 30Days (IIJ) · 3 GB · 30 days
117 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Ava H.
Spain · Jun 2026
Install took me two tries but was fine after that. Topping up was straightforward when I needed more.
Yuki
GotoeSIM Support
· 2 months ago Apologies for the trouble, Ava. We'd love the chance to make this right. Reach our team at gotoesim.com/support so we can help right away. – Yuki, GotoeSIM Support
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 💜