Japan SIM Navi
Real, all-in cost — not the advertised price

Y!mobile: Resident SIM Plans & Cost

Y!mobile's plans for people who live in Japan, what it takes to sign up, and the real monthly cost including setup fees.

Written & data by: Japan SIM Navi editorialPrices last verified: September 11, 2026Sources: each provider's official site

Y!mobile plans

Y!mobile, 2 plans (tax incl.)
PlanDataMonthly (from)eSIMSetup fee
Y!mobile 5–30GB5–30GB¥3,278Yes¥3,850
Y!mobile 35GB35GB¥5,478Yes¥3,850
At 3GB/month, Y!mobile's 5–30GB plan runs ¥4,479/month (12-month average, setup fee included, no conditional discounts).
Y!mobile official site →

Sign-up conditions

Y!mobile, verified against official sources (September 11, 2026)
Accepts foreign residentsYes (stated officially)
Residence card as IDYes
Min. remaining validity3 months
Support language(s)Japanese, English
Credit cardAccepted
Debit cardAccepted
Bank transferAccepted
Convenience-store paymentNot accepted
Setup cost¥3,850
Minimum termNot specified by the provider
Cancellation fee¥1,100Conditions apply — see official source below.

The exact list of accepted ID documents is long and partly Japanese-only legal text, so we link to the source rather than translating it: Y!mobile official.

Frequently asked questions

Does Y!mobile accept applicants with a residence card and no Japanese credit history?

Yes — Y!mobile accepts residence-card holders (per official pages). A residence card is accepted as ID. The card needs at least 3 months of validity remaining. That's a separate question from credit screening for the line contract itself: screening terms exist; see official page.

Can I pay Y!mobile without a Japanese credit card?

Yes — Y!mobile officially offers at least one non-credit-card payment method (bank transfer, debit, or convenience-store payment). See the payment table below for specifics.

Is eSIM available from Y!mobile?

Yes, at least one Y!mobile plan supports eSIM (see the table below for which).