Yes. For eSIM plans, you can prepare before landing using the QR code or activation instructions sent after you apply. Plans that mail a SIM require a confirmed delivery address.
Frequently asked questions
Questions before you apply,
answered in one place.
Choosing mobile service in Japan often stalls on questions like "will eSIM work on my phone?", "where do I start for referral benefits?", or "how hard is cancellation?" Those questions are organized by category and answered concisely.
FAQ categories
Questions by category
Answers are kept short with just what you need to make a decision. You can easily return to comparison or referral benefits.
Getting Started
Start by comparing each brand's strengths. Rakuten Mobile is the easiest entry point for English support, ahamo is the Docomo-network roaming option, LINEMO is strong if you use LINE heavily, and povo works best when your usage changes month to month or you want a backup SIM.
Plan Comparison
eSIM is faster if you want to get connected quickly. A physical SIM can be easier if you're unsure about device compatibility or prefer a card you can physically swap.
Most plans include throttling conditions during congestion or extreme usage. If you plan to stream heavily, check the fine print before signing up.
Yes. Rakuten Mobile highlights English support, while ahamo is online-only and povo is closer to self-service. If language or troubleshooting matters, treat support as part of the plan choice.
Referral Benefits
Start from the Rakuten Mobile referral link. The referral path highlights 13,000 points for MNP transfers and 10,000 points for new contracts, so open the link first and continue in the same Rakuten ID session.
No. Treat the benefit as something credited across three months after the qualifying conditions are met, not as an instant reward. Recheck the final eligibility rules during the application flow.
Troubleshooting
Check in order: eSIM/SIM recognition, mobile data line selection, APN profile, then restart. A short checklist makes it much easier to solve issues yourself.
Online-only plans are generally straightforward, but billing cutoff dates and next-month effective dates are easy to miss. The comparison page notes ease of switching and cancellation alongside pricing.
Still comparing?
Got your answer? Return to comparison or referral benefits.
Use the FAQ to keep moving. Once your question is answered, return to comparison or referral details.