Updated October 2026
Japan SIM Card for Students:
Monthly Plans and the Residence Card
For a student status longer than three months, the product is a resident monthly plan — and the one thing that gates it is an address printed on the back of a card you land without.
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This page is for the student staying in Japan longer than three months on a student status, who will hold a residence card — if your term is shorter than that and you need nothing but data, our eSIM guide for students prices travel plans by the study month instead. For a Japan SIM card for students on a longer placement the product is a resident monthly plan, and the English-language option we link is Sakura Mobile: Voice + Data from ¥2,980/month (¥3,278 tax incl.) with a Japanese 070, 080 or 090 number, Data Only from ¥2,480/month (¥2,728 tax incl.), tiers of 5 to 100 GB, a ¥5,500 activation fee — ¥4,400 with the student coupon, worth ¥1,100 — and a minimum use of one month. To sign you need a Residence Card or My Number Card showing your current address, no Japanese bank account, and the line is ready about 1–3 days after approval (5–7 if you port a number in). The catch is the order: the card arrives at immigration with the address field blank, the Immigration Services Agency gives you 14 days from deciding where you live to register it, and until then you are on a travel eSIM. All Sakura Mobile figures read off sakuramobile.jp on 30 Oct 2026.
With a Japanese number
From ¥2,980/month
Activation, with student coupon
¥4,400 once
Ready after approval
About 1–3 days
Minimum term
One month, then rolling
In short: land on a travel eSIM, because no resident application can be approved against a card with a blank address field. Register the address at the ward office, then sign Voice + Data if anything in your year will ask for a phone number — a bank, a landlord, a part-time job, a clinic — and Data Only if nothing will. Upload the student ID during the application: the ¥1,100 comes off the activation fee, not the monthly bill.
What Is the Best SIM Card for International Students in Japan?
A resident monthly plan, once you hold a card with an address on it. The table is the argument: the two travel rows fail the phone-number test and the 90-day test, and the two resident rows fail the can-I-do-this-on-day-one test — which is why the answer for a study year is both of them, in that order.
| Product | Price | Japanese number | What you must show | Term and ceiling |
|---|---|---|---|---|
| Sakura Mobile Voice + Data monthly (resident) | From ¥2,980/month (¥3,278 tax incl.), plus a ¥5,500 activation fee — ¥4,400 with the student coupon | Yes — a Japanese 070, 080 or 090 number | A Residence Card or My Number Card, valid and showing your current address, for an eSIM by email or a SIM by delivery; a passport if you collect at an airport counter or the Shinjuku office | Published as "Month-to-month with no lock-in"; minimum use one month |
| Sakura Mobile Data Only monthly (resident) | From ¥2,480/month (¥2,728 tax incl.), same ¥5,500 activation fee and same student coupon | No | The same documents as the Voice + Data plan | One month minimum, then rolling monthly |
| Sakura Mobile travel eSIM | From ¥1,250 (¥1,375 tax incl.) on the company's own travel page | No on the data-only eSIM; the company sells a separate prepaid Voice + Data eSIM that does carry a number | Nothing — the data-only travel eSIM states no ID verification is required | 1 to 90 days, which is the ceiling on every travel product in Japan |
| A tourist eSIM (Klook, Airalo, Holafly, eSIM Go) | From $3.99 across the four providers we price | No — every Japan plan we track is data only | An eSIM-capable handset and nothing else | Plan lengths run in days; no contract to end |
Every Sakura Mobile figure is the company's own, read off sakuramobile.jp on 30 Oct 2026; each monthly price is a published “from” and the tier you pick moves it. Tourist eSIM prices come from our daily feed, checked 29 Oct 2026. No Klook price appears on this page: Klook blocks automated reads of its product pages. Our Sakura Mobile review goes through the travel plans in detail, and SIM cards for a long stay is the version of this page for a posting rather than a placement.
How Much Data Does a Student Need Per Month?
Both resident plans are published at seven tiers, and the gap between the two price columns is ¥500 at every one of them — that ¥500 is the price of a Japanese phone number. The tier is changeable month to month through your account, so sign low and move up rather than guessing high.
| Data | Voice + Data /month (tax incl.) | Data Only /month (tax incl.) | Who it suits |
|---|---|---|---|
| 5 GB | ¥2,980 (¥3,278) | ¥2,480 (¥2,728) | A phone with campus or dorm WiFi behind it |
| 15 GB | ¥3,480 (¥3,828) | ¥2,980 (¥3,278) | The usual first-term pick: maps, messaging, some video |
| 30 GB | ¥3,980 (¥4,378) | ¥3,480 (¥3,828) | Light laptop tethering a few evenings a week |
| 40 GB | ¥4,980 (¥5,478) | ¥4,480 (¥4,928) | A room with no internet of its own |
| 60 GB | ¥6,980 (¥7,678) | ¥6,480 (¥7,128) | Online classes tethered to a laptop daily |
| 80 GB | ¥8,980 (¥9,878) | ¥8,480 (¥9,328) | A shared room where the plan is the household line |
| 100 GB | ¥10,980 (¥12,078) | ¥10,480 (¥11,528) | Rarely the right answer — price home internet first |
Both plans carry the same ¥5,500 activation fee at every tier, and the student discount is an “Additional 1,100 JPY discount from activation fee” applied with the coupon code “studentdiscount” — so ¥4,400 once, with the monthly price unchanged. The figure that decides the tier is not your phone habit: it is whether the room you live in has internet of its own. Without one, a laptop tethered for online classes turns a 15 GB month into a 60 GB one, which is ¥6,980 against ¥3,480 and roughly ¥21,000 across six months — enough that our home internet guide for foreigners is worth reading before you pick a tier rather than after. Tiers and prices read 30 Oct 2026.
Do I Need a Residence Card to Get a SIM in Japan?
For a resident monthly plan, in practice yes. For a travel product, no — Sakura Mobile's own data-only travel eSIM states no ID verification is required at all. The detail that catches students out is not the card but the address printed on it.
| How you get it | What it accepts | The catch |
|---|---|---|
| eSIM QR by email, or a SIM delivered to your address | A valid Residence Card or My Number Card, showing your current address | Sakura Mobile's wording is that the card "must be registered with your current address". A card whose back is still blank — which is how it arrives at immigration — is the single most common reason a resident application stalls. |
| Collection at an airport counter or the Shinjuku office | A passport, on a pre-order | The route that works before any address exists, because it is in-person verification rather than a document check. It needs ordering in advance rather than walking up. |
| No residence card yet at all | Passport only | A travel product, then: a travel eSIM from $3.99 across the providers we price, or Sakura Mobile's own from ¥1,250 (¥1,375 tax incl.). Data only, capped at 90 days, nothing to cancel. |
The sequencing is the Immigration Services Agency's rather than the carrier's. Its guidance on deciding or changing a place of residence is that you notify the municipal office of the municipality you live in within 14 days of the day you decide on it, presenting the residence card — or the passport, if yours was stamped “Residence card to be issued later” on entry. The address goes on the back of the card at that visit, and that is the moment a resident application becomes approvable. Nothing on this page is immigration advice, and your university's international office is the right place to ask about your own case; the rule above is quoted as the Agency publishes it, read on 30 Oct 2026.
How Long Does It Take to Get a SIM After Arriving?
About a week if your address is fixed before you fly, three or four if you are house-hunting first. The carrier is the fastest link in the chain, which is the opposite of what most people expect.
| Stage | How long | What governs it |
|---|---|---|
| Residence card in hand | Usually at the airport, on the day you land | The Immigration Services Agency's own guidance for notifying a place of residence assumes you are carrying the card, and tells anyone whose passport was stamped "Residence card to be issued later" to present the passport instead. The address field on the back is blank either way. |
| Address registered at the ward or city office | Within 14 days of deciding where you live | The Agency's rule is a deadline, not a suggestion: notify your place of residence at the municipal office of the municipality you live in within 14 days of the day you decide on it, presenting the residence card. The address is then printed on the reverse. |
| Application approved and the line ready | About 1–3 days after approval on a standard order; about 5–7 days if you are transferring a number in (MNP) | Sakura Mobile's own figure. An eSIM arrives as a QR code by email and a SIM card by delivery, so the clock after approval is short — it is the two rows above it that take the time. |
| Shortest realistic path end to end | Roughly a week, if your address is fixed before you fly | A dormitory place confirmed by your university is the version of this that goes fast: register the address in your first days, apply the same week, and the line is live inside about a week of landing. Viewing sharehouses for a fortnight first makes it three or four weeks instead. |
There is one route that shortcuts the address entirely, and it is worth knowing before you book flights rather than after. Sakura Mobile sells the monthly plan on a pre-order you collect in person — “Pick up at our airport counters or Shinjuku office” — verified against a passport instead of a card. It has to be ordered in advance rather than walked up to, which is exactly the sort of decision an AI summary will not make for you: if your term starts the week you land and you need a number for enrolment, that is the version to arrange from home. Lead times and pickup wording read 30 Oct 2026.
Can I Get a SIM Card in Japan Without a Bank Account?
Yes — and this is the clause that makes a monthly plan possible in your first fortnight rather than your second month. Sakura Mobile's monthly Voice page states the plan comes “with no Japanese bank account required”, and its resident plan guide says it again: “You do not need a Japanese bank account or a local credit card.”
The dependency runs the other way round, which is the useful thing to know on arrival. Japan Post Bank's own page for foreign nationals asks for the residence card to be presented, requests a student ID from students, notes that a Japanese-speaking companion may be asked for, and states that an account cannot be opened where the period of stay expires within three months of the application date. So a placement of a year has room for this and a one-term exchange may not — and Sakura Mobile's claim for what its number is for is specifically “to open your bank account and rent an apartment”. Both read on 30 Oct 2026. We are quoting published conditions, not advising on your application; the bank and your university decide the rest.
What Covers the Weeks Before a Monthly Plan?
A resident application needs a card showing an address you will not have on the day you land, so the first fortnight is a travel product by necessity rather than by choice. The eSIM is the only item here you can finish before leaving home, and there is nothing to cancel afterwards.
- ▸Klook Japan eSIM — A monthly student plan verifies against a residence card registered to your current address, and the Immigration Services Agency gives you 14 days from deciding on that address to register it — so the first fortnight online is a travel product whatever you sign afterwards. See eSIM options on Klook →
- ▸Shared transfer, Narita or Haneda → Tokyo — The seat-price version of a door-to-door ride, booked to a street address rather than a station — which is what a dormitory or sharehouse check-in gives you on day one, usually inside a fixed time slot. Check a shared airport transfer →
- ▸Private transfer, Haneda or Narita ⇄ Tokyo — A study year travels with more than a cabin bag, and the airport trains have no room for two hold cases at rush hour; the listing is a 24-hour service in 7- and 10-seater sizes, which also covers a late landing. Check a private airport transfer →
These go to Klook, which pays us a commission at no extra cost to you. Prices and availability are Klook's — we do not quote them here because its product pages block automated checks.
Can Students Get a Phone Number in Japan?
Yes, on the resident Voice + Data plan and only there. Sakura Mobile's own wording is worth quoting because it names what the number is for: “All our phone numbers are normal Japanese phone numbers (070, 080, 090) that you can use to open your bank account and rent an apartment!” It is a mobile number rather than an 050 VoIP one — a distinction the company draws itself, noting that 050 numbers are “often rejected for banking and apps”.
Being concrete about the ¥500: Voice + Data is ¥500 a month more than Data Only at every tier, so ¥3,000 across a six-month placement and ¥6,000 across a year. What that buys is the set of things a study year runs into whether you planned for them or not — a part-time job application that asks for a mobile number on the form and is answered by a phone call, a clinic registration, a parcel redelivery slot, a sharehouse manager, and the SMS codes that Japanese online services send and nothing else. Data Only earns its place for a placement with no work and no tenancy in it. If the number is the whole reason you are here, our guide to getting a Japanese phone number as a foreigner compares every route that carries one. Read on 30 Oct 2026.
How Do You Set This Up, In Order?
Buy a travel eSIM before you fly, and install the profile at home
This is the only part of the sequence you can finish before leaving, and it is what stops arrival day being spent hunting an airport SSID with two cases. From $3.99 across the four providers we price, data only, no contract and nothing to cancel. Install the profile with the line switched off so it starts working when you land.
Check what is actually on the back of your residence card
The card is issued when landing permission is granted at the major airports, but the address field is blank, and that blank field is what a resident application cannot be approved against. Look at it on the day rather than assuming.
Register the address inside 14 days of deciding on it
Take the residence card to the municipal office for where you live and file the notification of place of residence. The Immigration Services Agency's deadline is 14 days from the day you decide on the address, and the card comes back with it printed on the reverse. Your university's international office will usually walk the first intake through this.
Decide whether you need the number, honestly
Voice + Data is ¥500 a month more than Data Only at every tier — ¥2,980 against ¥2,480 at 5 GB, ¥10,980 against ¥10,480 at 100 GB. Sakura Mobile's own claim for what the number buys is specific: "normal Japanese phone numbers (070, 080, 090) that you can use to open your bank account and rent an apartment". A part-time job application and a clinic registration both ask for one too.
Upload the student ID for the discount — it is a step, not automatic
The discount is ¥1,100 off the ¥5,500 activation fee, applied with the coupon code "studentdiscount" on the monthly plan pages, and the document-submission step of the application has a box for uploading a student ID or other proof of student status. Miss the box and you pay the full ¥5,500; use it and the fee is ¥4,400. It is a one-off either way — the monthly price does not change.
Pick the tier against your room, not against your phone
Both resident plans run 5 GB to 100 GB and the tier is changeable month to month. The one thing that moves the answer is whether the place you live has internet of its own: with a line in the room, a phone-only month sits comfortably in 15 GB; without one, a tethered laptop for online classes pushes the same month towards 60 GB, which is ¥6,980 against ¥3,480.
Put the 25th of your departure month in a calendar now
The published rule is one sentence: "The minimum use is just one month. You can cancel anytime by submitting a request before the 25th." Submit on the 26th or later and the contract runs one more month, because it renews automatically rather than expiring at the end of term. A study placement has a known end date, so this is the easiest reminder on the list to set on the day you sign up.
Common Questions
1. What is the best SIM card for international students in Japan?
2. Can I get a SIM card in Japan without a bank account?
3. Do I need a residence card to get a SIM in Japan?
4. How long does it take to get a SIM after arriving?
5. Can students get a phone number in Japan?
6. Is there a student discount on a Japanese SIM card?
7. How is this different from the eSIM guide for students?
8. How much data does a student need per month in Japan?
9. What happens to the contract at the end of term?
10. Can I use my own phone, or do I need to buy one in Japan?
Arrive on an eSIM, then sign the monthly plan
A travel eSIM for the fortnight between landing and a registered address, then Voice + Data from ¥2,980/month with a Japanese number, a one-month minimum and ¥4,400 activation with the student coupon. Remember the 25th when the term ends.