From your first SIM to a plan that fits: carriers, documents, payments, and keeping your number.
Sakura Mobile advertises English sign-up and overseas credit/debit payment without a Japanese bank account. Mobal is another English-language option to investigate. Confirm the voice product and documents before ordering.
Look at online value plans if you can manage their application and support language. Prefer a counter? Compare the main carriers, UQ mobile, and Y!mobile. Check home and workplace coverage before committing.
The usual starting point for residents who need ordinary calls, SMS, and mobile internet. Check that the plan includes a Japanese mobile number and supports the verification services you need.
Available as physical SIM or eSIM on supported products. The SIM format does not determine whether voice is included.
Both can provide voice or data, depending on the plan. Check your exact handset model, carrier lock, network bands, and voice compatibility. eSIM also requires device support and Wi-Fi for setup; identity checks still apply.
A useful first comparison if you need English support and do not yet have a Japanese bank account.
Its resident voice plans include a Japanese phone number. Compare the full recurring cost with domestic budget plans once you are established.
Another English-language provider to investigate for getting connected around arrival.
Choose the specific voice or data product carefully. Confirm current identity, activation, delivery, and payment requirements before ordering.
Start here if an in-person appointment and help with documents matter more than finding the lowest headline price.
Check language support at the specific shop. Family or home-internet discounts may not apply to you; handset installments are a separate commitment.
Worth comparing for a plan whose data charge follows usage, especially if your usage varies month to month.
Check coverage at home and work. Confirm the current calling-app conditions, exclusions, and any difference between app calls and normal dialer calls.
Compare when you can manage identity verification and ongoing account support online, often in Japanese.
These are different products: compare ahamo allowances, povo top-up validity and inactivity rules, and LINEMO tiers. Do not assume the parent carrier shop offers full support.
A middle ground to compare when you want a lower-cost plan with access to participating shops.
Compare the price without family, home-internet, or card discounts first. Check which procedures the shop handles and whether assistance costs extra.
A candidate for modest data use when you can manage a mostly Japanese-language application and support process.
An MVNO uses another operator's network. Coverage and congestion performance are different questions; speeds can vary at busy times. Choose a voice product if you need calls.
A shortlist, not a price or coverage ranking. Compare the current tax-inclusive price without discounts you do not qualify for, plus activation, calls, SMS, and handset payments.
For a resident contract, prepare your residence card with current address and the provider's requested supporting documents. Passport, remaining period of stay, age, and online identity-verification requirements vary. A tourist product may have a different document list.
Ask whether your overseas card is accepted for recurring payments, or whether a Japanese bank account is needed. Sakura Mobile advertises overseas credit/debit payment without a Japanese bank account. A debit-card logo alone is not proof of acceptance by every carrier.
Confirm the phone is carrier-unlocked, supports the selected network and voice service, and accepts the required physical SIM or eSIM. Regional variants differ. Use the carrier's compatibility list, especially for an imported handset.
A first Japanese contract normally needs a new number. MNP transfers an eligible existing Japanese mobile number, not your overseas number. Match the subscriber name and follow the new carrier's transfer instructions.
Use a trusted Wi-Fi connection for eSIM installation, follow the activation and APN instructions, then test mobile data, an ordinary call, and SMS on a voice plan. Choose the correct default lines on a dual-SIM phone and check overseas roaming settings. Never place a test call to an emergency number.
General guidance, not a provider endorsement. Plans, fees, payment methods, identity requirements, and language support can change. Use the provider links to confirm current terms. Coverage maps are estimates, not a guarantee of indoor reception.