Compare four major mobile brands in Japan: Rakuten Mobile, ahamo, LINEMO, and povo 2.0. Review price ranges, data allowance, contract terms, and support, then understand each brand's strengths before comparing the details.
Price matters, but so do data allowances, contract terms, and whether a brand offers English support, roaming, or a flexible top-up model. Shortlist by brand first, then compare the details.
People who want English support and free domestic calls
People who prioritize network quality and roaming
Light to moderate data users who rely on LINE
People whose usage varies by month or who need a secondary SIM
Mobile plans can be full of details but light on decision-making context. This site focuses on the factors that matter for the first choice.
Travel, study, working holiday, and long stays all have different requirements. Narrow by purpose first.
Choose eSIM if you want to get connected quickly, or a physical SIM if device compatibility is uncertain. Setup complexity is part of the comparison.
How easily you can get help can shape your first mobile contract in Japan. We factor in the support path.
These focused guides help you move from the broad comparison to the details that matter for your stay.
Choose by support, roaming, LINE usage, and stay length.
Support Rakuten Mobile English supportSee when Rakuten Mobile is the simplest starting point.
Before you arrive Japan eSIM before you arriveCheck phone compatibility, application flow, and activation.
Comparison Rakuten Mobile vs ahamoCompare price, roaming, calls, and support tradeoffs.
Guide for foreign users Japan SIM card guide for foreign residents and visitorsCheck identity verification, payment, support, and stay-length considerations.
The referral link flow, eligibility, and point timing are all on a dedicated page, so you can check them before you apply.
The FAQ is split into four categories: getting started, plan comparison, referral benefits, and troubleshooting.
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.
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.
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.
Price, data, contract terms, and support differences are all laid out in a comparison table.