JapanESimFinder
Japan eSIM comparison

Find the right eSIM for your Japan trip.

Compare Japan eSIM plans by the things that matter: your trip length, data needs and total cost.

Researched plans
50
Priced providers · provider summaries
5 · 5
Research snapshot
2026-10-02

Prices and plan restrictions need rechecking before purchase. No live offers.

Yasaka Pagoda above a traditional wooden street in Kyoto at sunset

Find your plan

Your trip
days
How much data do you use?
Do you need hotspot?
Light: maps and messaging · Regular: browsing and social media · Heavy: video and uploadsEstimates help compare plans. Your actual usage may differ.
Your options

Plans that fit your trip

10 days · ≈ 10 GB

16 suitable plans · No hotspot requirement · Prices shown in EUR

Best Match30-day validity

Nomad

20 GB20 GB total allowance

Validity vs. your trip30 days
€20.18Total plan price

Lowest total price with at least 20% high-speed data headroom. Covers 10 days and approximately 10 GB.

Networks
SoftBank / KDDI
5G
Yes
Hotspot
Hotspot supported; limit not verified
Price
Price verified 2026-10-02
Source and limitations

Original price: €20.18. Price verified 2026-10-02. EUR conversion reference: 2026-10-01. Fixed data allowance. Separate hotspot restrictions not recorded.

Plan details
Cheapest

Nomad

10 GB · Total allowance · SoftBank / KDDI

Validity30 days
€14.04Price verified 2026-10-02
Details
Why this plan, source and limitations

Lowest total converted price among eligible plans. Covers 10 days and approximately 10 GB.

5G: Yes · Hotspot supported; limit not verified

Original price: €14.04. Price verified 2026-10-02. EUR conversion reference: 2026-10-01. Fixed data allowance. Separate hotspot restrictions not recorded.

Best Unlimited

Airalo

Unlimited · 3 GB high-speed per day · Then up to 1 Mbps · Networks not verified

Validity10 days
€31.50Price verified 2026-10-02
Details
Why this plan, source and limitations

Lowest-priced eligible unlimited plan with a known high-speed allowance. Covers 10 days and approximately 10 GB.

5G: Not verified · Hotspot: no separate cap; shared plan allowance applies

Original price: €31.50. Price verified 2026-10-02. EUR conversion reference: 2026-10-01. Package specifies 3 GB/day then 1 Mbps. Applicable policy resets every 24 hours from activation. Personal hotspot shares the same data allowance; misuse and network-management restrictions apply.

Package specifies 3 GB/day then 1 Mbps. Applicable policy resets every 24 hours from activation.

Alternative

Ubigi

10 GB · Total allowance · Networks not verified

Validity30 days
€14.60$16.50 original
Details
Why this plan, source and limitations

Another eligible option for the same trip requirements. Covers 10 days and approximately 10 GB.

5G: Not verified · Hotspot support not verified

Original price: $16.50. Price verified 2026-10-02. EUR conversion reference: 2026-10-01. Fixed data allowance. Separate hotspot restrictions not recorded.

A plan appears only when its recorded allowance covers your trip. Unlimited plans with unknown speed limits remain in the table below.

Why 34 plans were excluded
  • Validity shorter than trip14 plans
  • Price unavailable10 plans
  • Insufficient data7 plans
  • High-speed fair-use allowance not verified3 plans

Each plan shows its first exclusion reason. Full restrictions appear in the comparison.

Compare the details

All researched Japan eSIM plans

Original currencies preserved.
Converted prices are indicative.

Provider
Data type

Showing 50 of 50 researched plans

Japan eSIM plans with individual price verification dates and suitability for your selected trip
ProviderDataValidityTotal / EURHotspotTrip suitabilityDetails
UbigiNTT Docomo / KDDI1 GBTotal allowance3 days€3.10$3.50 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedValidity shorter than tripDetails
NomadSoftBank / KDDI1 GBTotal allowance7 days€3.51€3.51 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedValidity shorter than tripDetails
SailySoftBank / KDDI1 GBTotal allowance7 days€3.53$3.99 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedValidity shorter than tripDetails
UbigiNetworks not verified1 GBTotal allowance30 days€3.54$4.00 originalPrice verified 2026-10-02Hotspot support not verifiedInsufficient dataDetails
HolaflyNetworks not verifiedUnlimitedHigh-speed allowance not verified · Reduced speed not verified1 days€3.79€3.79 originalPrice verified 2026-10-02Hotspot: 1 GB/dayValidity shorter than tripDetails
NomadSoftBank / KDDI3 GBTotal allowance30 days€6.14€6.14 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedInsufficient dataDetails
UbigiNetworks not verified3 GBTotal allowance15 days€6.64$7.50 originalPrice verified 2026-10-02Hotspot support not verifiedInsufficient dataDetails
SailySoftBank / KDDI3 GBTotal allowance30 days€7.07$7.99 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedInsufficient dataDetails
NomadSoftBank / KDDI5 GBTotal allowance30 days€8.77€8.77 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedInsufficient dataDetails
UbigiNTT Docomo / KDDI5 GBTotal allowance15 days€8.85$10.00 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedInsufficient dataDetails
NomadKDDI / SoftBankUnlimited2 GB high-speed per day · Then up to 1 Mbps3 days€9.65€9.65 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedValidity shorter than tripDetails
SailySoftBank / KDDI5 GBTotal allowance30 days€9.73$10.99 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedInsufficient dataDetails
AiraloNetworks not verifiedUnlimited3 GB high-speed per day · Then up to 1 Mbps3 days€10.50€10.50 originalPrice verified 2026-10-02Hotspot: no separate cap; shared plan allowance appliesValidity shorter than tripDetails
HolaflyNetworks not verifiedUnlimitedHigh-speed allowance not verified · Reduced speed not verified3 days€10.53$11.90 originalPrice verified 2026-10-02Hotspot: 1 GB/dayValidity shorter than tripDetails
UbigiNTT Docomo / KDDI10 GBTotal allowance7 days€12.39$14.00 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedValidity shorter than tripDetails
NomadCheapestSoftBank / KDDI10 GBTotal allowance30 days€14.04€14.04 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedFits recorded requirementsDetails
UbigiAlternativeNetworks not verified10 GBTotal allowance30 days€14.60$16.50 originalPrice verified 2026-10-02Hotspot support not verifiedFits recorded requirementsDetails
AiraloNetworks not verifiedUnlimited3 GB high-speed per day · Then up to 1 Mbps5 days€15.50€15.50 originalPrice verified 2026-10-02Hotspot: no separate cap; shared plan allowance appliesValidity shorter than tripDetails
SailySoftBank / KDDI10 GBTotal allowance30 days€15.92$17.99 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedFits recorded requirementsDetails
HolaflyNetworks not verifiedUnlimitedHigh-speed allowance not verified · Reduced speed not verified5 days€18.14$20.50 originalPrice verified 2026-10-02Hotspot: 1 GB/dayValidity shorter than tripDetails
NomadBest MatchSoftBank / KDDI20 GBTotal allowance30 days€20.18€20.18 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedFits recorded requirementsDetails
NomadKDDI / SoftBankUnlimited2 GB high-speed per day · Then up to 1 Mbps7 days€21.93€21.93 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedValidity shorter than tripDetails
SailySoftBank / KDDI20 GBTotal allowance30 days€22.12$24.99 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedFits recorded requirementsDetails
UbigiKDDI / NTT DocomoUnlimited5 GB high-speed per day · Then up to 2 Mbps8 days€22.13$25.00 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedValidity shorter than tripDetails
AiraloNetworks not verifiedUnlimited3 GB high-speed per day · Then up to 1 Mbps7 days€24.00€24.00 originalPrice verified 2026-10-02Hotspot: no separate cap; shared plan allowance appliesValidity shorter than tripDetails
HolaflyNetworks not verifiedUnlimitedHigh-speed allowance not verified · Reduced speed not verified7 days€24.34$27.50 originalPrice verified 2026-10-02Hotspot: 1 GB/dayValidity shorter than tripDetails
UbigiNetworks not verified25 GBTotal allowance30 days€28.32$32.00 originalPrice verified 2026-10-02Hotspot support not verifiedFits recorded requirementsDetails
NomadSoftBank / KDDI50 GBTotal allowance30 days€30.71€30.71 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedFits recorded requirementsDetails
AiraloBest UnlimitedNetworks not verifiedUnlimited3 GB high-speed per day · Then up to 1 Mbps10 days€31.50€31.50 originalPrice verified 2026-10-02Hotspot: no separate cap; shared plan allowance appliesFits recorded requirementsDetails
HolaflyNetworks not verifiedUnlimitedHigh-speed allowance not verified · Reduced speed not verified10 days€32.31$36.50 originalPrice verified 2026-10-02Hotspot: 1 GB/dayHigh-speed fair-use allowance not verifiedDetails
UbigiKDDI / NTT DocomoUnlimited30 GB high-speed per plan · Then up to 2 Mbps15 days€34.52$39.00 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedFits recorded requirementsDetails
NomadKDDI / SoftBankUnlimited2 GB high-speed per day · Then up to 1 Mbps14 days€35.97€35.97 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedFits recorded requirementsDetails
NomadKDDI / SoftBankUnlimited2 GB high-speed per day · Then up to 1 Mbps21 days€42.99€42.99 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedFits recorded requirementsDetails
SailySoftBank / KDDIUnlimited5 GB high-speed per day · Then up to 1 Mbps15 days€43.36$48.99 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedFits recorded requirementsDetails
AiraloNetworks not verifiedUnlimited3 GB high-speed per day · Then up to 1 Mbps15 days€43.50€43.50 originalPrice verified 2026-10-02Hotspot: no separate cap; shared plan allowance appliesFits recorded requirementsDetails
HolaflyNetworks not verifiedUnlimitedHigh-speed allowance not verified · Reduced speed not verified15 days€44.70$50.50 originalPrice verified 2026-10-02Hotspot: 1 GB/dayHigh-speed fair-use allowance not verifiedDetails
UbigiNetworks not verified50 GBTotal allowance30 days€48.68$55.00 originalPrice verified 2026-10-02Hotspot support not verifiedFits recorded requirementsDetails
UbigiKDDI / NTT DocomoUnlimited60 GB high-speed per plan · Then up to 2 Mbps30 days€57.53$65.00 originalPrice verified 2026-10-02Hotspot supported; limit not verifiedFits recorded requirementsDetails
AiraloNetworks not verifiedUnlimited3 GB high-speed per day · Then up to 1 Mbps30 days€62.50€62.50 originalPrice verified 2026-10-02Hotspot: no separate cap; shared plan allowance appliesFits recorded requirementsDetails
HolaflyNetworks not verifiedUnlimitedHigh-speed allowance not verified · Reduced speed not verified30 days€65.41$73.90 originalPrice verified 2026-10-02Hotspot: 1 GB/dayHigh-speed fair-use allowance not verifiedDetails
UbigiNTT Docomo / KDDI3 GBTotal allowance3 daysUnverified priceSEK 74.50 historicalCurrent price / availability not verifiedHotspot supported; limit not verifiedPrice unavailableDetails
UbigiNTT Docomo / KDDI3 GBTotal allowance7 daysUnverified priceSEK 79.00 historicalCurrent price / availability not verifiedHotspot supported; limit not verifiedPrice unavailableDetails
UbigiNTT Docomo / KDDI5 GBTotal allowance7 daysUnverified priceSEK 99.00 historicalCurrent price / availability not verifiedHotspot supported; limit not verifiedPrice unavailableDetails
UbigiNTT Docomo / KDDI5 GBTotal allowance30 daysUnverified priceSEK 109.00 historicalCurrent price / availability not verifiedHotspot supported; limit not verifiedPrice unavailableDetails
UbigiNTT Docomo / KDDIUnlimitedHigh-speed allowance not verified · Reduced speed not verified3 daysUnverified priceSEK 114.00 historicalCurrent price / availability not verifiedHotspot supported; limit not verifiedPrice unavailableDetails
UbigiNTT Docomo / KDDIUnlimitedHigh-speed allowance not verified · Reduced speed not verified5 daysUnverified priceSEK 168.00 historicalCurrent price / availability not verifiedHotspot supported; limit not verifiedPrice unavailableDetails
UbigiNTT Docomo / KDDI10 GBTotal allowance15 daysUnverified priceSEK 173.00 historicalCurrent price / availability not verifiedHotspot supported; limit not verifiedPrice unavailableDetails
UbigiNTT Docomo / KDDI20 GBTotal allowance15 daysUnverified priceSEK 237.00 historicalCurrent price / availability not verifiedHotspot supported; limit not verifiedPrice unavailableDetails
UbigiNTT Docomo / KDDIUnlimitedHigh-speed allowance not verified · Reduced speed not verified7 daysUnverified priceSEK 262.00 historicalCurrent price / availability not verifiedHotspot supported; limit not verifiedPrice unavailableDetails
UbigiNTT Docomo / KDDIUnlimitedHigh-speed allowance not verified · Reduced speed not verified10 daysUnverified priceSEK 341.00 historicalCurrent price / availability not verifiedHotspot supported; limit not verifiedPrice unavailableDetails
How we rank

Clear rules.
No hidden score.

The same inputs always produce the same results.

Fit

Check that the plan fits

Validity must cover the entire trip. Fixed data must cover estimated use. Unlimited plans need a known high-speed allowance that covers it. Hotspot requirements also need verified support and sufficient allowance; we conservatively assume all usage could be tethered.

Cost

Compare the full cost

Cheapest uses total converted price. Best Value chooses the lowest total price with at least 20% high-speed data headroom, or falls back to cheapest. Unlimited priority requires an unlimited plan. Equal prices use the least unused validity, then a stable plan ID.

Explain

Show distinct, explained options

Each plan appears once across recommendation categories. Affiliate commission is excluded from the engine. Unlimited usage uses a 2 GB/day planning estimate; it does not promise unrestricted speed.

Currency reference: 1 EUR = 11.331 SEK, 2026-10-01. European Central Bank reference rates. Conversions are indicative; fees and checkout rates may differ.

Providers

What the research covers

Provider-level summaries.
Plan-level details appear in the comparison.

ProviderNetworks5GHotspotResearched plans
Saily KDDI / SoftBankYesNot verified6 researched plans
Nomad KDDI / SoftBankYesNot verified10 researched plans
Ubigi Networks not verifiedNot verifiedNot verified21 researched plans
Airalo Networks not verifiedNot verifiedNot verified6 researched plans
Holafly KDDI / SoftBankYesYesVerified hotspot sharing: 1 GB/day. High-speed fair-use threshold not verified.7 researched plans
A Japanese local train crossing the Tadami River bridge amid autumn forest in Fukushima
Local line · Japan
Compare by need

Compare by need and guides

Guides
Before you buy

A few useful answers

Read the setup guide →
How much data should I plan for?

Start with 0.5 GB/day for maps and messaging, 1 GB/day for regular browsing and social media, or 2 GB/day for video and uploads. These are planning estimates, not guarantees.

Does unlimited mean unlimited high-speed data?

Not necessarily. High-speed allowances and slower speeds after throttling can differ by plan. The finder compares verified high-speed allowances. Plans with unknown fair-use thresholds remain visible in the table but cannot qualify.

Can I share data with my laptop?

Only plans with verified hotspot support and sufficient sharing allowance qualify when hotspot is required. Unconfirmed limits are excluded, even when a provider advertises hotspot support.

Why is a listed plan excluded from recommendations?

A plan may lack verified restrictions, have too little data, or expire before your trip ends. The comparison shows the first reason it does not qualify. Historical offers with unconfirmed availability cannot rank.

Are these current checkout prices?

No. These are dated research observations, including official provider pages and preserved historical records. Each plan shows its price verification state. EUR conversions use a separately dated exchange-rate snapshot. Check the provider’s current offer before purchasing.

Disclosure

Affiliate disclosure & research dates

Some provider links may become affiliate links. If you purchase through one, we may earn a commission. Commission never changes eligibility or ranking. No affiliate URLs have been supplied in this dataset.

Plan and provider research: 2026-10-02. Currency reference: 2026-10-01. Individual fields have separate verification dates. These are research snapshots; checkout offers can change.

Local line photograph: MaedaAkihiko, CC BY-SA 4.0. Resized and cropped for this page.