This student‑focused guide shows how to sign up fast, keep monthly costs low, and avoid common pitfalls—whether you’re an exchange student or staying long‑term.
Start with referral benefits → https://www.japanmobileguide.com/referral
Why students pick Rakuten Mobile
- Simple plan structure with generous data at a competitive price
- eSIM for same‑day activation on many phones
- English support options and app experience that’s beginner‑friendly
- Good value for Wi‑Fi Calling, hotspot, and international usage add‑ons
What you need to sign up
✓ Compatible, unlocked phone (confirm on BYOD page)
✓ ID for eKYC (passport or residence card)
✓ Payment method (credit card or supported Rakuten payment)
✓ Reliable Wi‑Fi (for eSIM downloads)
BYOD compatibility check → https://network.mobile.rakuten.co.jp/en/product/byod/
eSIM vs physical SIM
- eSIM: best for speed—many students activate the same day after online eKYC. Requires an eSIM‑capable, unlocked phone.
- Physical SIM: good fallback if your device doesn’t support eSIM; allow extra time for delivery or pickup.
Step‑by‑step signup (fastest route)
- Confirm device compatibility on the BYOD page
- Apply online and choose eSIM
- Complete eKYC (follow on‑screen camera guidance)
- Install the eSIM profile over Wi‑Fi
- Test data, calls, and SMS; update carrier settings if prompted
If you’re porting a number (MNP), finish the number transfer authorization steps before expecting service to switch.
Cost‑control tips for students
- Use Wi‑Fi whenever available (campus, dorms)
- Enable Wi‑Fi Calling for better indoor voice clarity and fewer minutes usage
- Track hotspot use; streaming and large downloads add up quickly
- Set data warnings in iOS/Android and background app refresh limits
Coverage: what to expect
Always verify your dorm, campus, and commute on the official map. 5G is expanding, and low‑band spectrum helps indoors. For heavy underground routes, check the subway station list.
- Service area map: https://network.mobile.rakuten.co.jp/area/
- Subway list: https://network.mobile.rakuten.co.jp/area/station/
Troubleshooting basics
- Calls not working but data is: toggle VoLTE/Wi‑Fi Calling, then restart
- Stuck on activation: recheck eKYC email/SMS, ensure you installed the eSIM profile completely
- Poor indoor signal: try Wi‑Fi Calling; move near windows; confirm recent OS updates
- Device locked by another carrier: request unlock from the original carrier first
Quick links
- BYOD checker: https://network.mobile.rakuten.co.jp/en/product/byod/
- English overview: https://network.mobile.rakuten.co.jp/en/
- Service area map: https://network.mobile.rakuten.co.jp/area/
Ready to sign up with referral benefits? → https://www.japanmobileguide.com/referral
Notes
Activation speed and experience vary by eKYC outcome, device model, OS version, and number transfer timing.