Wanderly owns and runs this guide
eSIM Japan Guide is run by the team behind Wanderly, one of the providers discussed on this site. We earn money when you buy Wanderly. That is a direct ownership relationship, not merely an occasional affiliate link on an otherwise unrelated publication. You should take that financial interest into account when reading our recommendations.
Our visual identity is different from Wanderly’s because this site organizes a buying guide around Japan travel questions. A different design does not mean different ownership. The disclosure box shown before recommendations and outbound Wanderly links states the relationship plainly. This longer page provides the additional detail behind that notice.
How outbound links work
Wanderly links include referral tracking parameters identifying this guide and the link’s placement. Those parameters help attribute visits and purchases to a particular recommendation, comparison table or call to action. They are part of the destination URL. Wanderly’s own privacy notice and terms apply when you visit or buy from its site.
Where a promotional code is shown, the code and any savings remain subject to Wanderly’s checkout eligibility and current terms. Check that the code applies to your selected package and confirm the final amount before completing a purchase. A promotion does not make an unsuitable allowance or validity period suitable for your trip.
Competitor links point to their Japan pages so you can inspect their own offers. We do not assert an affiliate commission arrangement with those providers on this site. If the site’s commercial relationships change, the relevant disclosures and link treatment should be updated before using a new arrangement.
What the relationship means for recommendations
We feature Wanderly as our fixed-data value pick using our listed plans. That commercial recommendation must still match the plan facts. We compare validity, display listed prices, identify missing information and explain when a competitor can better fit a traveler’s needs.
For example, a visitor who wants a simple unlimited package may prefer Holafly’s structure, and a longer-stay traveler may want to investigate Ubigi’s recurring options. Choosing an existing Airalo account for convenience can also be sensible. Those are useful purchasing distinctions rather than reasons to hide an alternative.
Claims we do not manufacture
There are no invented customer reviews, testimonials, speed tests, star ratings or first-hand Japan testing stories on this site. Price notes explain the status of price checks. A page update date is not a claim that every plan was independently purchased or tested on that day.
Our methodology describes the comparison rules and the limits of our research. The About page explains the purpose of the guide. If a disclosure or claim appears unclear, use our contact page to identify the page and the statement so we can review it.