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Japan · Real prices, checked Sep 24, 2026

Which eSIM in Japan as a student?

For students, an exchange semester, an internship or a graduation trip mostly calls for a plan that lasts the distance without blowing the budget. Here are the Japan eSIM plans that handle those needs best, with checked prices from $10.00.

From$10.005 GB · 7 days · Airalo

How much data do you need?

7 days
Your usage
Yesim 5 GB · 30 days $10.56
Get this plan →
3 providers comparedReal prices, checked Sep 24, 2026No fake reviewsAffiliate links, no extra cost for you

At a glance

Best valueBest value
Yesim
$10.56 5 GB · 30 days
See plan
Best unlimited
Airalo
$26.50 Unlimited · 7 days
See plan
Cheapest
Airalo
$10.00 5 GB · 7 days
See plan

Which eSIM in Japan as a student?

The bar shows price per GB: shorter is cheaper. Click a column header to sort.

Network5GHotspotCTA
Yesim 5 GB30 $10.56
$2.11
KDDIYesYes See plan
Airalo 5 GB7 $10.00
$2.00
Softbank, KDDIYesNot specified See plan
Saily 5 GB30 $10.99
$2.20
KDDI, SoftBankYesNot specified See plan
All checked plans (64)
Airalo1 GB3$4.00$4.00
Airalo3 GB3$7.50$2.50
Airalo3 GB7$8.00$2.67
Airalo5 GB7$10.00$2.00
Airalo10 GB7$17.00$1.70
Airalo5 GB15$10.50$2.10
Airalo10 GB15$17.50$1.75
Airalo20 GB15$24.00$1.20
Airalo5 GB30$11.00$2.20
Airalo10 GB30$18.00$1.80
Airalo20 GB30$25.00$1.25
AiraloUnlimited3$11.50—
AiraloUnlimited5$17.00—
AiraloUnlimited7$26.50—
AiraloUnlimited10$34.50—
AiraloUnlimited15$48.00—
AiraloUnlimited30$69.00—
Saily1 GB7$3.99$3.99
Saily3 GB30$7.99$2.66
Saily5 GB30$10.99$2.20
Saily10 GB30$17.99$1.80
Saily20 GB30$24.99$1.25
SailyUnlimited5$18.99—
SailyUnlimited7$26.99—
SailyUnlimited10$34.99—
SailyUnlimited15$48.99—
SailyUnlimited20$59.99—
SailyUnlimited25$65.99—
SailyUnlimited30$71.99—
Yesim1 GB30$4.44$4.44
Yesim5 GB30$10.56$2.11
Yesim10 GB30$19.20$1.92
Yesim20 GB30$29.76$1.49
Yesim30 GB30$39.60$1.32
YesimUnlimited1$4.20—
YesimUnlimited2$8.40—
YesimUnlimited3$12.60—
YesimUnlimited4$16.80—
YesimUnlimited5$21.00—
YesimUnlimited6$25.20—
YesimUnlimited7$29.40—
YesimUnlimited8$31.13—
YesimUnlimited9$32.86—
YesimUnlimited10$34.57—
YesimUnlimited11$36.30—
YesimUnlimited12$38.03—
YesimUnlimited13$39.76—
YesimUnlimited14$41.47—
YesimUnlimited15$43.20—
YesimUnlimited16$44.72—
YesimUnlimited17$46.24—
YesimUnlimited18$47.76—
YesimUnlimited19$49.28—
YesimUnlimited20$50.80—
YesimUnlimited21$52.32—
YesimUnlimited22$53.84—
YesimUnlimited23$55.36—
YesimUnlimited24$56.88—
YesimUnlimited25$58.40—
YesimUnlimited26$59.92—
YesimUnlimited27$61.44—
YesimUnlimited28$62.96—
YesimUnlimited29$64.48—
YesimUnlimited30$66.00—

Studying in Japan: smart moves

  • Going the distance: for a full semester, travel plans aren't really built for that length; compare the cost of several top-ups with a local SIM bought on arrival.
  • Watch the cost per GB: on a tight budget, that's the number that counts, not the sticker price.
  • Keep your usual number: texts from your bank and online services keep arriving on your main SIM.
  • Use the Wi-Fi: campus and housing Wi-Fi sharply cut the data you need.

Set up your eSIM in 4 steps

  1. Make sure your phone is eSIM-compatible and unlocked.
  2. Buy the plan, then scan the QR code you receive (or install through the provider's app), on Wi-Fi.
  3. When you arrive, turn on the eSIM line for data, and turn on roaming for that line only.
  4. Keep your main SIM for calls and texts, with data roaming turned off.

Your phone must be eSIM-compatible and unlocked.

Full ranking

  1. 1

    Yesim

    5 GB · 30 days · $10.56 · KDDI

    5G listedUnlimited availableMany durationsHotspot use allowedPricier than the cheapest in the table
    See plansource
    9.7out of 10
  2. 2

    Airalo

    5 GB · 7 days · $10.00 · Softbank, KDDI

    Lowest price in the table5G listedUnlimited availableMany durationsHotspot use not specified
    See plansource
    9.5out of 10
  3. 3

    Saily

    5 GB · 30 days · $10.99 · KDDI, SoftBank

    5G listedUnlimited availableMany durationsPricier than the cheapest in the tableHotspot use not specified
    See plansource
    9out of 10
How the score is calculated

Score out of 10 = 60% price (relative to the cheapest in the table) + 15% network (5G listed, network named) + 10% hotspot use + 15% range of options (unlimited available, number of durations).

Frequently asked questions

Which eSIM in Japan for a study abroad semester?

Travel plans are designed for short trips. For several months, compare the cost of successive top-ups with a local SIM bought on arrival, and use the eSIM for the first few weeks.

How can I cut my data costs in Japan?

Compare cost per GB rather than the sticker price, make the most of campus and housing Wi-Fi, and download maps and playlists for offline use.

What's the cheapest eSIM for Japan?

Among the providers we compare, the cheapest plan for a typical trip is from Airalo, at $10.00. Prices are checked on the official websites and dated at the top of the page.

Do I keep my regular phone number?

Yes. Your main SIM can stay active for calls and texts; the travel eSIM only handles data. Remember to turn off data roaming on your main line.

Is my phone eSIM-compatible?

Most iPhones from the XS onward, recent Samsung Galaxy phones and Google Pixels from the Pixel 3 onward are compatible. The phone also has to be unlocked. On iPhone: Settings > General > About, look for the "EID" line.

When should I install my eSIM?

Install it before you leave, on Wi-Fi, but turn on the data line when you arrive. Most plans only start at the first connection to the local network.

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Yesim5 GB · 30 days$10.56Get it →

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