ok: 7/7 collected providers current, Saily excluded
We don't show Saily prices: saily.com blocks automated price collection, so we cannot verify their prices weekly. Saily is excluded from this comparison as of 20 September 2026.
Is Saily or Airalo the lower trip-cost choice?
Verified prices unavailable
There are not enough verified providers for this comparison. Prices and purchase links are withheld until collection succeeds.
Requires an eSIM-compatible, carrier-unlocked phone.
About this comparison
No scenario table is available in this snapshot. The notes below explain how the comparison works when sufficient qualifying data is available.
Saily is excluded while automated price collection is blocked. This page shows the available verified benchmarks for a Japan trip; it cannot establish whether Saily is cheaper. We model a week, a fortnight, and a month so you can choose the duration and allowance nearest to your own plan. That keeps a light holiday from being judged by the purchase needed for a longer, data-heavy stay.
Compare like with like
A finite package offers a stated allowance within a validity window. Only providers with verified current prices enter these scenarios. We therefore compare the purchase needed to reach the same trip requirement, not similarly named bundles. When an unlimited alternative appears in a catalogue, it belongs to a different model and must be read with its daily fair-use ceiling and possible throttling. “Fair-use not verified” marks a threshold that lacks adequate plan-specific support and removes that row from winner eligibility. Our canonical shopping channel is official web checkout; either provider’s app can remain important for account access, installation, or plan management, but an app-only offer is not silently mixed into the web snapshot. Page-level links open the destination range, and the correct variant must be chosen. Checkout localization and promotions can change the result. The observation date is beside every table.
Price is only one layer
Saily and Airalo may route customers through an overlapping Japanese carrier while differing in bundle design, recharge steps, activation language, support workflow, and commercial terms. A network listed by either provider is a declared mapping, not an independent signal survey or a guarantee for a station, hotel, island, or rural leg. Check the named local carrier against your route. Install in advance on stable internet, keep the setup instructions available offline, and avoid starting validity prematurely. An eSIM-capable, carrier-unlocked device is essential; make the travel profile the data line and review roaming settings before landing.
Saily and Airalo questions
Why not compare the smallest package from each?
The smallest products may not satisfy the same trip. Qualifying logic aligns allowance and validity first, then compares the resulting purchase totals. That avoids rewarding an option that would need replacement mid-stay.
Does the app change the comparison?
It can change what you see, but this snapshot uses official web checkout for a consistent baseline. Treat a lower app basket as a fresh offer and verify its plan scope and conditions separately.
Can I top up either plan?
Top-up availability depends on the exact product and current account flow. Do not assume that a provider-wide feature applies to every destination package; check before choosing a tightly sized allowance.
Does a shared host network make the services identical?
No. Radio access can overlap while price, validity, policy enforcement, support, and provisioning differ. Nor does the shared declaration prove identical priority or real-world performance.