A repeatable method

Research first.
Testing when we actually test.

We use different language for official-source research and real-world use because they answer different questions.

1. Define the traveler and decision

We specify origin market, destination or route, trip length, device, likely data use and must-have features. “Best eSIM” without those inputs is too vague to be useful.

2. Build from primary sources

We check official provider destination pages, terms, help centers, compatibility lists, carrier guidance and device-manufacturer documentation. Search snippets and AI output may help locate a page but do not replace reading it.

3. Record moving facts

For price and plan comparisons, we capture the country or region, currency, data allowance, validity, fair-use rule, hotspot rule, voice/SMS inclusion, source URL and verification date. The final checkout remains authoritative.

4. Compare like with like

We align destination coverage, data amount, duration and feature requirements. A 1 GB plan is not presented as cheaper than an unlimited plan without explaining the mismatch.

5. Hands-on test protocol

When a page is labeled hands-on tested, the record should include:

  • Device model, OS version, carrier-lock status and home carrier
  • Plan purchased, price paid, purchase date and funding disclosure
  • Installation steps, activation time and any support interaction
  • Test cities or routes, dates, signal context and repeat measurements
  • Hotspot, common messaging, navigation and practical browsing checks

One trip remains one sample. We do not generalize a single city result to a whole country.

6. Review for safety and honesty

Before publication, we check disclosures, dates, sources, internal links, accessibility and claims. We do not position travel eSIMs as tools to evade platform verification, regional rules or account restrictions.

Current testing state: the initial Saily page is official-source research only. No purchase, activation or network-performance test has been conducted by this project.